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Merge InnoDB-3.23.50


innobase/btr/btr0btr.c:
  Merge InnoDB-3.23.50
innobase/btr/btr0cur.c:
  Merge InnoDB-3.23.50
innobase/btr/btr0sea.c:
  Merge InnoDB-3.23.50
innobase/buf/buf0buf.c:
  Merge InnoDB-3.23.50
innobase/buf/buf0flu.c:
  Merge InnoDB-3.23.50
innobase/dict/dict0dict.c:
  Merge InnoDB-3.23.50
innobase/dict/dict0load.c:
  Merge InnoDB-3.23.50
innobase/fil/fil0fil.c:
  Merge InnoDB-3.23.50
innobase/fsp/fsp0fsp.c:
  Merge InnoDB-3.23.50
innobase/include/buf0flu.h:
  Merge InnoDB-3.23.50
innobase/include/dict0dict.h:
  Merge InnoDB-3.23.50
innobase/include/fil0fil.h:
  Merge InnoDB-3.23.50
innobase/include/fsp0fsp.h:
  Merge InnoDB-3.23.50
innobase/include/log0log.h:
  Merge InnoDB-3.23.50
innobase/include/log0recv.h:
  Merge InnoDB-3.23.50
innobase/include/mem0mem.h:
  Merge InnoDB-3.23.50
innobase/include/os0file.h:
  Merge InnoDB-3.23.50
innobase/include/row0mysql.h:
  Merge InnoDB-3.23.50
innobase/include/srv0srv.h:
  Merge InnoDB-3.23.50
innobase/include/srv0start.h:
  Merge InnoDB-3.23.50
innobase/include/trx0sys.h:
  Merge InnoDB-3.23.50
innobase/include/ut0byte.h:
  Merge InnoDB-3.23.50
innobase/include/ut0rnd.h:
  Merge InnoDB-3.23.50
innobase/include/ut0ut.h:
  Merge InnoDB-3.23.50
innobase/log/log0log.c:
  Merge InnoDB-3.23.50
innobase/log/log0recv.c:
  Merge InnoDB-3.23.50
innobase/mem/mem0mem.c:
  Merge InnoDB-3.23.50
innobase/os/os0file.c:
  Merge InnoDB-3.23.50
innobase/rem/rem0cmp.c:
  Merge InnoDB-3.23.50
innobase/row/row0ins.c:
  Merge InnoDB-3.23.50
innobase/row/row0mysql.c:
  Merge InnoDB-3.23.50
innobase/row/row0sel.c:
  Merge InnoDB-3.23.50
innobase/row/row0upd.c:
  Merge InnoDB-3.23.50
innobase/srv/srv0srv.c:
  Merge InnoDB-3.23.50
innobase/srv/srv0start.c:
  Merge InnoDB-3.23.50
innobase/trx/trx0sys.c:
  Merge InnoDB-3.23.50
innobase/ut/ut0mem.c:
  Merge InnoDB-3.23.50
innobase/ut/ut0ut.c:
  Merge InnoDB-3.23.50
sql/ha_innobase.cc:
  Merge InnoDB-3.23.50
sql/ha_innobase.h:
  Merge InnoDB-3.23.50
This commit is contained in:
unknown
2002-03-21 18:03:09 +02:00
parent 838c6427b2
commit d3c0752b6a
40 changed files with 2561 additions and 660 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
innobase/btr/btr0btr.c
View File

@ -570,6 +570,19 @@ btr_page_get_father_for_rec(
node_ptr = btr_cur_get_rec(&cursor);
if (btr_node_ptr_get_child_page_no(node_ptr) !=
buf_frame_get_page_no(page)) {
fprintf(stderr,
"InnoDB: Corruption of an index tree: table %s, index %s,\n"
"InnoDB: father ptr page no %lu, child page no %lu\n",
(UT_LIST_GET_FIRST(tree->tree_indexes))->table_name,
(UT_LIST_GET_FIRST(tree->tree_indexes))->name,
btr_node_ptr_get_child_page_no(node_ptr),
buf_frame_get_page_no(page));
page_rec_print(page_rec_get_next(page_get_infimum_rec(page)));
page_rec_print(node_ptr);
}
ut_a(btr_node_ptr_get_child_page_no(node_ptr) ==
buf_frame_get_page_no(page));
mem_heap_free(heap);

2
innobase/btr/btr0cur.c
View File

@ -204,7 +204,7 @@ btr_cur_search_to_nth_level(
the caller uses his search latch
to protect the record! */
btr_cur_t* cursor, /* in/out: tree cursor; the cursor page is
s- or x-latched, but see also above! */
s- or x-latched, but see also above! */
ulint has_search_latch,/* in: info on the latch mode the
caller currently has on btr_search_latch:
RW_S_LATCH, or 0 */

2
innobase/btr/btr0sea.c
View File

@ -743,7 +743,7 @@ btr_search_guess_on_hash(
#ifdef notdefined
/* These lines of code can be used in a debug version to check
correctness of the searched cursor position: */
the correctness of the searched cursor position: */
info->last_hash_succ = FALSE;

78
innobase/buf/buf0buf.c
View File

@ -220,6 +220,10 @@ buf_calc_page_checksum(
{
ulint checksum;
/* Since the fields FIL_PAGE_FILE_FLUSH_LSN and ..._ARCH_LOG_NO
are written outside the buffer pool to the first pages of data
files, we have to skip them in page checksum calculation */
checksum = ut_fold_binary(page, FIL_PAGE_FILE_FLUSH_LSN);
+ ut_fold_binary(page + FIL_PAGE_DATA,
UNIV_PAGE_SIZE - FIL_PAGE_DATA
@ -279,8 +283,9 @@ buf_page_print(
ut_sprintf_buf(buf, read_buf, UNIV_PAGE_SIZE);
ut_print_timestamp(stderr);
fprintf(stderr,
"InnoDB: Page dump in ascii and hex (%lu bytes):\n%s",
" InnoDB: Page dump in ascii and hex (%lu bytes):\n%s",
UNIV_PAGE_SIZE, buf);
fprintf(stderr, "InnoDB: End of page dump\n");
@ -288,7 +293,8 @@ buf_page_print(
checksum = buf_calc_page_checksum(read_buf);
fprintf(stderr, "InnoDB: Page checksum %lu stored checksum %lu\n",
ut_print_timestamp(stderr);
fprintf(stderr, " InnoDB: Page checksum %lu stored checksum %lu\n",
checksum, mach_read_from_4(read_buf
+ UNIV_PAGE_SIZE
- FIL_PAGE_END_LSN));
@ -1358,47 +1364,87 @@ buf_page_io_complete(
/*=================*/
buf_block_t* block) /* in: pointer to the block in question */
{
dulint id;
dict_index_t* index;
dulint id;
ulint io_type;
ulint read_page_no;
ut_ad(block);
io_type = block->io_fix;
if (io_type == BUF_IO_READ) {
/* If this page is not uninitialized and not in the
doublewrite buffer, then the page number should be the
same as in block */
read_page_no = mach_read_from_4((block->frame)
+ FIL_PAGE_OFFSET);
if (read_page_no != 0
&& !trx_doublewrite_page_inside(read_page_no)
&& read_page_no != block->offset) {
fprintf(stderr,
"InnoDB: Error: page n:o stored in the page read in is %lu, should be %lu!\n",
read_page_no, block->offset);
}
#ifdef notdefined
if (block->offset != 0 && read_page_no == 0) {
/* Check that the page is really uninited */
for (i = 0; i < UNIV_PAGE_SIZE; i++) {
if (*((block->frame) + i) != '\0') {
fprintf(stderr,
"InnoDB: Error: page n:o in the page read in is 0, but page %lu is inited!\n",
block->offset);
break;
}
}
}
#endif
/* From version 3.23.38 up we store the page checksum
to the 4 upper bytes of the page end lsn field */
to the 4 first bytes of the page end lsn field */
if (buf_page_is_corrupted(block->frame)) {
fprintf(stderr,
"InnoDB: Database page corruption or a failed\n"
"InnoDB: file read of page %lu.\n", block->offset);
"InnoDB: Database page corruption on disk or a failed\n"
"InnoDB: file read of page %lu.\n", block->offset);
fprintf(stderr,
"InnoDB: You may have to recover from a backup.\n");
"InnoDB: You may have to recover from a backup.\n");
buf_page_print(block->frame);
fprintf(stderr,
"InnoDB: Database page corruption or a failed\n"
"InnoDB: file read of page %lu.\n", block->offset);
"InnoDB: Database page corruption on disk or a failed\n"
"InnoDB: file read of page %lu.\n", block->offset);
fprintf(stderr,
"InnoDB: You may have to recover from a backup.\n");
"InnoDB: You may have to recover from a backup.\n");
fprintf(stderr,
"InnoDB: It is also possible that your operating\n"
"InnoDB: system has corrupted its own file cache\n"
"InnoDB: and rebooting your computer removes the\n"
"InnoDB: error.\n");
"InnoDB: It is also possible that your operating\n"
"InnoDB: system has corrupted its own file cache\n"
"InnoDB: and rebooting your computer removes the\n"
"InnoDB: error.\n"
"InnoDB: If the corrupt page is an index page\n"
"InnoDB: you can also try to fix the corruption\n"
"InnoDB: by dumping, dropping, and reimporting\n"
"InnoDB: the corrupt table. You can use CHECK\n"
"InnoDB: TABLE to scan your table for corruption.\n"
"InnoDB: Look also at section 6.1 of\n"
"InnoDB: http://www.innodb.com/ibman.html about\n"
"InnoDB: forcing recovery.\n");
if (srv_force_recovery < SRV_FORCE_IGNORE_CORRUPT) {
fprintf(stderr,
"InnoDB: Ending processing because of a corrupt database page.\n");
exit(1);
}
}
if (recv_recovery_is_on()) {
recv_recover_page(TRUE, block->frame, block->space,
block->offset);
recv_recover_page(FALSE, TRUE, block->frame,
block->space, block->offset);
}
if (!recv_no_ibuf_operations) {

47
innobase/buf/buf0flu.c
View File

@ -327,6 +327,34 @@ try_again:
mutex_exit(&(trx_doublewrite->mutex));
}
/************************************************************************
Initializes a page for writing to the tablespace. */
void
buf_flush_init_for_writing(
/*=======================*/
byte* page, /* in: page */
dulint newest_lsn, /* in: newest modification lsn to the page */
ulint space, /* in: space id */
ulint page_no) /* in: page number */
{
/* Write the newest modification lsn to the page */
mach_write_to_8(page + FIL_PAGE_LSN, newest_lsn);
mach_write_to_8(page + UNIV_PAGE_SIZE - FIL_PAGE_END_LSN, newest_lsn);
/* Write to the page the space id and page number */
mach_write_to_4(page + FIL_PAGE_SPACE, space);
mach_write_to_4(page + FIL_PAGE_OFFSET, page_no);
/* We overwrite the first 4 bytes of the end lsn field to store
a page checksum */
mach_write_to_4(page + UNIV_PAGE_SIZE - FIL_PAGE_END_LSN,
buf_calc_page_checksum(page));
}
/************************************************************************
Does an asynchronous write of a buffer page. NOTE: in simulated aio and
also when the doublewrite buffer is used, we must call
@ -349,23 +377,8 @@ buf_flush_write_block_low(
/* Force the log to the disk before writing the modified block */
log_flush_up_to(block->newest_modification, LOG_WAIT_ALL_GROUPS);
#endif
/* Write the newest modification lsn to the page */
mach_write_to_8(block->frame + FIL_PAGE_LSN,
block->newest_modification);
mach_write_to_8(block->frame + UNIV_PAGE_SIZE - FIL_PAGE_END_LSN,
block->newest_modification);
/* Write to the page the space id and page number */
mach_write_to_4(block->frame + FIL_PAGE_SPACE, block->space);
mach_write_to_4(block->frame + FIL_PAGE_OFFSET, block->offset);
/* We overwrite the first 4 bytes of the end lsn field to store
a page checksum */
mach_write_to_4(block->frame + UNIV_PAGE_SIZE - FIL_PAGE_END_LSN,
buf_calc_page_checksum(block->frame));
buf_flush_init_for_writing(block->frame, block->newest_modification,
block->space, block->offset);
if (!trx_doublewrite) {
fil_io(OS_FILE_WRITE | OS_AIO_SIMULATED_WAKE_LATER,
FALSE, block->space, block->offset, 0, UNIV_PAGE_SIZE,

195
innobase/dict/dict0dict.c
View File

@ -281,7 +281,8 @@ dict_table_autoinc_initialize(
}
/************************************************************************
Gets the next autoinc value, 0 if not yet initialized. */
Gets the next autoinc value, 0 if not yet initialized. If initialized,
increments the counter by 1. */
ib_longlong
dict_table_autoinc_get(
@ -306,6 +307,32 @@ dict_table_autoinc_get(
return(value);
}
/************************************************************************
Reads the autoinc counter value, 0 if not yet initialized. Does not
increment the counter. */
ib_longlong
dict_table_autoinc_read(
/*====================*/
/* out: value of the counter */
dict_table_t* table) /* in: table */
{
ib_longlong value;
mutex_enter(&(table->autoinc_mutex));
if (!table->autoinc_inited) {
value = 0;
} else {
value = table->autoinc;
}
mutex_exit(&(table->autoinc_mutex));
return(value);
}
/************************************************************************
Updates the autoinc counter if the value supplied is bigger than the
current value. If not inited, does nothing. */
@ -644,7 +671,10 @@ dict_table_rename_in_cache(
/*=======================*/
/* out: TRUE if success */
dict_table_t* table, /* in: table */
char* new_name) /* in: new name */
char* new_name, /* in: new name */
ibool rename_also_foreigns)/* in: in ALTER TABLE we want
to preserve the original table name
in constraints which reference it */
{
dict_foreign_t* foreign;
dict_index_t* index;
@ -702,6 +732,41 @@ dict_table_rename_in_cache(
index = dict_table_get_next_index(index);
}
if (!rename_also_foreigns) {
/* In ALTER TABLE we think of the rename table operation
in the direction table -> temporary table (#sql...)
as dropping the table with the old name and creating
a new with the new name. Thus we kind of drop the
constraints from the dictionary cache here. The foreign key
constraints will be inherited to the new table from the
system tables through a call of dict_load_foreigns. */
/* Remove the foreign constraints from the cache */
foreign = UT_LIST_GET_LAST(table->foreign_list);
while (foreign != NULL) {
dict_foreign_remove_from_cache(foreign);
foreign = UT_LIST_GET_LAST(table->foreign_list);
}
/* Reset table field in referencing constraints */
foreign = UT_LIST_GET_FIRST(table->referenced_list);
while (foreign != NULL) {
foreign->referenced_table = NULL;
foreign->referenced_index = NULL;
foreign = UT_LIST_GET_NEXT(referenced_list, foreign);
}
/* Make the list of referencing constraints empty */
UT_LIST_INIT(table->referenced_list);
return(TRUE);
}
/* Update the table name fields in foreign constraints */
foreign = UT_LIST_GET_FIRST(table->foreign_list);
@ -768,8 +833,6 @@ dict_table_remove_from_cache(
foreign = UT_LIST_GET_LAST(table->foreign_list);
while (foreign != NULL) {
ut_a(0 == ut_strcmp(foreign->foreign_table_name, table->name));
dict_foreign_remove_from_cache(foreign);
foreign = UT_LIST_GET_LAST(table->foreign_list);
}
@ -779,8 +842,6 @@ dict_table_remove_from_cache(
foreign = UT_LIST_GET_FIRST(table->referenced_list);
while (foreign != NULL) {
ut_a(0 == ut_strcmp(foreign->referenced_table_name,
table->name));
foreign->referenced_table = NULL;
foreign->referenced_index = NULL;
@ -1628,8 +1689,9 @@ dict_foreign_add_to_cache(
{
dict_table_t* for_table;
dict_table_t* ref_table;
dict_foreign_t* for_in_cache = NULL;
dict_foreign_t* for_in_cache = NULL;
dict_index_t* index;
ibool added_to_referenced_list = FALSE;
ut_ad(mutex_own(&(dict_sys->mutex)));
@ -1673,6 +1735,7 @@ dict_foreign_add_to_cache(
UT_LIST_ADD_LAST(referenced_list,
ref_table->referenced_list,
for_in_cache);
added_to_referenced_list = TRUE;
}
if (for_in_cache->foreign_table == NULL && for_table) {
@ -1683,6 +1746,12 @@ dict_foreign_add_to_cache(
if (index == NULL) {
if (for_in_cache == foreign) {
if (added_to_referenced_list) {
UT_LIST_REMOVE(referenced_list,
ref_table->referenced_list,
for_in_cache);
}
mem_heap_free(foreign->heap);
}
@ -1802,9 +1871,14 @@ dict_scan_col(
return(ptr);
}
if (*ptr == '`') {
ptr++;
}
old_ptr = ptr;
while (!isspace(*ptr) && *ptr != ',' && *ptr != ')') {
while (!isspace(*ptr) && *ptr != ',' && *ptr != ')' && *ptr != '`') {
ptr++;
}
@ -1825,6 +1899,10 @@ dict_scan_col(
}
}
if (*ptr == '`') {
ptr++;
}
return(ptr);
}
@ -1855,9 +1933,13 @@ dict_scan_table_name(
return(ptr);
}
if (*ptr == '`') {
ptr++;
}
old_ptr = ptr;
while (!isspace(*ptr) && *ptr != '(') {
while (!isspace(*ptr) && *ptr != '(' && *ptr != '`') {
if (*ptr == '.') {
dot_ptr = ptr;
}
@ -1898,6 +1980,10 @@ dict_scan_table_name(
*table = dict_table_get_low(second_table_name);
if (*ptr == '`') {
ptr++;
}
return(ptr);
}
@ -1940,8 +2026,8 @@ dict_create_foreign_constraints(
/*============================*/
/* out: error code or DB_SUCCESS */
trx_t* trx, /* in: transaction */
char* sql_string, /* in: table create statement where
foreign keys are declared like:
char* sql_string, /* in: table create or ALTER TABLE
statement where foreign keys are declared like:
FOREIGN KEY (a, b) REFERENCES table2(c, d),
table2 can be written also with the database
name before it: test.table2; the default
@ -1967,10 +2053,11 @@ dict_create_foreign_constraints(
if (table == NULL) {
return(DB_ERROR);
}
loop:
ptr = dict_scan_to(ptr, "FOREIGN");
if (*ptr == '\0' || dict_bracket_count(sql_string, ptr) != 1) {
if (*ptr == '\0') {
/* The following call adds the foreign key constraints
to the data dictionary system tables on disk */
@ -2883,12 +2970,89 @@ dict_field_print_low(
printf(" %s", field->name);
}
/**************************************************************************
Sprintfs to a string info on foreign keys of a table in a format suitable
for CREATE TABLE. */
static
void
dict_print_info_on_foreign_keys_in_create_format(
/*=============================================*/
char* buf, /* in: auxiliary buffer of 10000 chars */
char* str, /* in/out: pointer to a string */
ulint len, /* in: space in str available for info */
dict_table_t* table) /* in: table */
{
dict_foreign_t* foreign;
ulint i;
char* buf2;
buf2 = buf;
mutex_enter(&(dict_sys->mutex));
foreign = UT_LIST_GET_FIRST(table->foreign_list);
if (foreign == NULL) {
mutex_exit(&(dict_sys->mutex));
return;
}
while (foreign != NULL) {
buf2 += sprintf(buf2, ",\n FOREIGN KEY (");
for (i = 0; i < foreign->n_fields; i++) {
buf2 += sprintf(buf2, "`%s`",
foreign->foreign_col_names[i]);
if (i + 1 < foreign->n_fields) {
buf2 += sprintf(buf2, ", ");
}
}
buf2 += sprintf(buf2, ") REFERENCES `%s` (",
foreign->referenced_table_name);
/* Change the '/' in the table name to '.' */
for (i = ut_strlen(buf); i > 0; i--) {
if (buf[i] == '/') {
buf[i] = '.';
break;
}
}
for (i = 0; i < foreign->n_fields; i++) {
buf2 += sprintf(buf2, "`%s`",
foreign->referenced_col_names[i]);
if (i + 1 < foreign->n_fields) {
buf2 += sprintf(buf2, ", ");
}
}
buf2 += sprintf(buf2, ")");
foreign = UT_LIST_GET_NEXT(foreign_list, foreign);
}
mutex_exit(&(dict_sys->mutex));
buf[len - 1] = '\0';
ut_memcpy(str, buf, len);
}
/**************************************************************************
Sprintfs to a string info on foreign keys of a table. */
void
dict_print_info_on_foreign_keys(
/*============================*/
ibool create_table_format, /* in: if TRUE then print in
a format suitable to be inserted into
a CREATE TABLE, otherwise in the format
of SHOW TABLE STATUS */
char* str, /* in/out: pointer to a string */
ulint len, /* in: space in str available for info */
dict_table_t* table) /* in: table */
@ -2898,6 +3062,12 @@ dict_print_info_on_foreign_keys(
char* buf2;
char buf[10000];
if (create_table_format) {
dict_print_info_on_foreign_keys_in_create_format(
buf, str, len, table);
return;
}
buf2 = buf;
mutex_enter(&(dict_sys->mutex));
@ -2916,6 +3086,7 @@ dict_print_info_on_foreign_keys(
for (i = 0; i < foreign->n_fields; i++) {
buf2 += sprintf(buf2, "%s",
foreign->foreign_col_names[i]);
if (i + 1 < foreign->n_fields) {
buf2 += sprintf(buf2, " ");
}

11
innobase/dict/dict0load.c
View File

@ -688,7 +688,16 @@ dict_load_indexes(
dict_load_fields(table, index, heap);
dict_index_add_to_cache(table, index);
if (index->type & DICT_CLUSTERED == 0
&& NULL == dict_table_get_first_index(table)) {
fprintf(stderr,
"InnoDB: Error: trying to load index %s for table %s\n"
"InnoDB: but the first index was not clustered\n",
index->name, table->name);
} else {
dict_index_add_to_cache(table, index);
}
}
btr_pcur_move_to_next_user_rec(&pcur, &mtr);

80
innobase/fil/fil0fil.c
View File

@ -89,8 +89,8 @@ struct fil_node_struct {
char* name; /* the file name or path */
ibool open; /* TRUE if file open */
os_file_t handle; /* OS handle to the file, if file open */
ulint size; /* size of the file in database blocks
(where the possible last incomplete block
ulint size; /* size of the file in database pages
(where the possible last incomplete megabyte
is ignored) */
ulint n_pending;
/* count of pending i/o-ops on this file */
@ -945,6 +945,76 @@ fil_node_complete_io(
}
}
/**************************************************************************
Tries to extend a data file by the number of pages given. Any fractions of a
megabyte are ignored. */
ibool
fil_extend_last_data_file(
/*======================*/
/* out: TRUE if success, also if we run
out of disk space we may return TRUE */
ulint* actual_increase,/* out: number of pages we were able to
extend, here the orginal size of the file and
the resulting size of the file are rounded
downwards to a full megabyte, and the
difference expressed in pages is returned */
ulint size_increase) /* in: try to extend this many pages */
{
fil_node_t* node;
fil_space_t* space;
fil_system_t* system = fil_system;
byte* buf;
ibool success;
ulint i;
mutex_enter(&(system->mutex));
HASH_SEARCH(hash, system->spaces, 0, space, space->id == 0);
ut_a(space);
node = UT_LIST_GET_LAST(space->chain);
fil_node_prepare_for_io(node, system, space);
buf = mem_alloc(1024 * 1024);
memset(buf, '\0', 1024 * 1024);
for (i = 0; i < size_increase / ((1024 * 1024) / UNIV_PAGE_SIZE); i++) {
success = os_file_write(node->name, node->handle, buf,
(node->size << UNIV_PAGE_SIZE_SHIFT) & 0xFFFFFFFF,
node->size >> (32 - UNIV_PAGE_SIZE_SHIFT),
1024 * 1024);
if (!success) {
break;
}
node->size += ((1024 * 1024) / UNIV_PAGE_SIZE);
space->size += ((1024 * 1024) / UNIV_PAGE_SIZE);
os_has_said_disk_full = FALSE;
}
mem_free(buf);
fil_node_complete_io(node, system, OS_FILE_WRITE);
mutex_exit(&(system->mutex));
*actual_increase = i * ((1024 * 1024) / UNIV_PAGE_SIZE);
fil_flush(0);
srv_data_file_sizes[srv_n_data_files - 1] += *actual_increase;
return(TRUE);
}
/************************************************************************
Reads or writes data. This operation is asynchronous (aio). */
@ -966,9 +1036,9 @@ fil_io(
ulint byte_offset, /* in: remainder of offset in bytes; in
aio this must be divisible by the OS block
size */
ulint len, /* in: how many bytes to read; this must
not cross a file boundary; in aio this must
be a block size multiple */
ulint len, /* in: how many bytes to read or write; this
must not cross a file boundary; in aio this
must be a block size multiple */
void* buf, /* in/out: buffer where to store read data
or from where to write; in aio this must be
appropriately aligned */

181
innobase/fsp/fsp0fsp.c
View File

@ -50,7 +50,7 @@ descriptor page, but used only in the first. */
#define FSP_FREE_LIMIT 12 /* Minimum page number for which the
free list has not been initialized:
the pages >= this limit are, by
definition free */
definition, free */
#define FSP_LOWEST_NO_WRITE 16 /* The lowest page offset for which
the page has not been written to disk
(if it has been written, we know that
@ -898,6 +898,106 @@ fsp_header_inc_size(
mlog_write_ulint(header + FSP_SIZE, size + size_inc, MLOG_4BYTES, mtr);
}
/**************************************************************************
Gets the current free limit of a tablespace. The free limit means the
place of the first page which has never been put to the the free list
for allocation. The space above that address is initialized to zero.
Sets also the global variable log_fsp_current_free_limit. */
ulint
fsp_header_get_free_limit(
/*======================*/
/* out: free limit in megabytes */
ulint space) /* in: space id */
{
fsp_header_t* header;
ulint limit;
mtr_t mtr;
ut_a(space == 0); /* We have only one log_fsp_current_... variable */
mtr_start(&mtr);
mtr_x_lock(fil_space_get_latch(space), &mtr);
header = fsp_get_space_header(space, &mtr);
limit = mtr_read_ulint(header + FSP_FREE_LIMIT, MLOG_4BYTES, &mtr);
limit = limit / ((1024 * 1024) / UNIV_PAGE_SIZE);
log_fsp_current_free_limit_set_and_checkpoint(limit);
mtr_commit(&mtr);
return(limit);
}
/***************************************************************************
Tries to extend the last data file file if it is defined as auto-extending. */
static
ibool
fsp_try_extend_last_file(
/*=====================*/
/* out: FALSE if not auto-extending */
ulint* actual_increase,/* out: actual increase in pages */
ulint space, /* in: space */
fsp_header_t* header, /* in: space header */
mtr_t* mtr) /* in: mtr */
{
ulint size;
ulint size_increase;
ibool success;
ut_a(space == 0);
*actual_increase = 0;
if (!srv_auto_extend_last_data_file) {
return(FALSE);
}
size = mtr_read_ulint(header + FSP_SIZE, MLOG_4BYTES, mtr);
if (srv_last_file_size_max != 0) {
if (srv_last_file_size_max
< srv_data_file_sizes[srv_n_data_files - 1]) {
fprintf(stderr,
"InnoDB: Error: Last data file size is %lu, max size allowed %lu\n",
srv_data_file_sizes[srv_n_data_files - 1],
srv_last_file_size_max);
}
size_increase = srv_last_file_size_max
- srv_data_file_sizes[srv_n_data_files - 1];
if (size_increase > SRV_AUTO_EXTEND_INCREMENT) {
size_increase = SRV_AUTO_EXTEND_INCREMENT;
}
} else {
size_increase = SRV_AUTO_EXTEND_INCREMENT;
}
if (size_increase == 0) {
return(TRUE);
}
/* Extend the data file. If we are not able to extend
the full requested length, the function tells us
the number of full megabytes (but the unit is pages!)
we were able to extend. */
success = fil_extend_last_data_file(actual_increase, size_increase);
if (success) {
mlog_write_ulint(header + FSP_SIZE, size + *actual_increase,
MLOG_4BYTES, mtr);
}
return(TRUE);
}
/**************************************************************************
Puts new extents to the free list if there are free extents above the free
limit. If an extent happens to contain an extent descriptor page, the extent
@ -917,8 +1017,9 @@ fsp_fill_free_list(
ulint frag_n_used;
page_t* descr_page;
page_t* ibuf_page;
mtr_t ibuf_mtr;
ulint actual_increase;
ulint i;
mtr_t ibuf_mtr;
ut_ad(header && mtr);
@ -926,12 +1027,28 @@ fsp_fill_free_list(
size = mtr_read_ulint(header + FSP_SIZE, MLOG_4BYTES, mtr);
limit = mtr_read_ulint(header + FSP_FREE_LIMIT, MLOG_4BYTES, mtr);
if (srv_auto_extend_last_data_file
&& size < limit + FSP_EXTENT_SIZE * FSP_FREE_ADD) {
/* Try to increase the last data file size */
fsp_try_extend_last_file(&actual_increase, space, header,
mtr);
size = mtr_read_ulint(header + FSP_SIZE, MLOG_4BYTES, mtr);
}
i = limit;
while ((i + FSP_EXTENT_SIZE <= size) && (count < FSP_FREE_ADD)) {
mlog_write_ulint(header + FSP_FREE_LIMIT, i + FSP_EXTENT_SIZE,
MLOG_4BYTES, mtr);
/* Update the free limit info in the log system and make
a checkpoint */
log_fsp_current_free_limit_set_and_checkpoint(
(i + FSP_EXTENT_SIZE)
/ ((1024 * 1024) / UNIV_PAGE_SIZE));
if (0 == i % XDES_DESCRIBED_PER_PAGE) {
/* We are going to initialize a new descriptor page
@ -1172,6 +1289,7 @@ fsp_free_page(
xdes_t* descr;
ulint state;
ulint frag_n_used;
char buf[1000];
ut_ad(mtr);
@ -1183,10 +1301,38 @@ fsp_free_page(
state = xdes_get_state(descr, mtr);
ut_a((state == XDES_FREE_FRAG) || (state == XDES_FULL_FRAG));
if (state != XDES_FREE_FRAG && state != XDES_FULL_FRAG) {
fprintf(stderr,
"InnoDB: Error: File space extent descriptor of page %lu has state %lu\n",
page, state);
ut_sprintf_buf(buf, ((byte*)descr) - 50, 200);
ut_a(xdes_get_bit(descr, XDES_FREE_BIT, page % FSP_EXTENT_SIZE, mtr)
== FALSE);
fprintf(stderr, "InnoDB: Dump of descriptor: %s\n", buf);
if (state == XDES_FREE) {
/* We put here some fault tolerance: if the page
is already free, return without doing anything! */
return;
}
ut_a(0);
}
if (xdes_get_bit(descr, XDES_FREE_BIT, page % FSP_EXTENT_SIZE, mtr)
== TRUE) {
fprintf(stderr,
"InnoDB: Error: File space extent descriptor of page %lu says it is free\n",
page);
ut_sprintf_buf(buf, ((byte*)descr) - 50, 200);
fprintf(stderr, "InnoDB: Dump of descriptor: %s\n", buf);
/* We put here some fault tolerance: if the page
is already free, return without doing anything! */
return;
}
xdes_set_bit(descr, XDES_FREE_BIT, page % FSP_EXTENT_SIZE, TRUE, mtr);
xdes_set_bit(descr, XDES_CLEAN_BIT, page % FSP_EXTENT_SIZE, TRUE, mtr);
@ -2243,13 +2389,15 @@ fsp_reserve_free_extents(
mtr_t* mtr) /* in: mtr */
{
fsp_header_t* space_header;
rw_lock_t* latch;
ulint n_free_list_ext;
ulint free_limit;
ulint size;
ulint n_free;
ulint n_free_up;
ulint reserve;
rw_lock_t* latch;
ibool success;
ulint n_pages_added;
ut_ad(mtr);
ut_ad(!mutex_own(&kernel_mutex)
@ -2260,7 +2408,7 @@ fsp_reserve_free_extents(
mtr_x_lock(latch, mtr);
space_header = fsp_get_space_header(space, mtr);
try_again:
size = mtr_read_ulint(space_header + FSP_SIZE, MLOG_4BYTES, mtr);
n_free_list_ext = flst_get_len(space_header + FSP_FREE, mtr);
@ -2291,7 +2439,7 @@ fsp_reserve_free_extents(
if (n_free <= reserve + n_ext) {
return(FALSE);
goto try_to_extend;
}
} else if (alloc_type == FSP_UNDO) {
/* We reserve 1 % of the space size to cleaning operations */
@ -2300,13 +2448,26 @@ fsp_reserve_free_extents(
if (n_free <= reserve + n_ext) {
return(FALSE);
goto try_to_extend;
}
} else {
ut_a(alloc_type == FSP_CLEANING);
}
return(fil_space_reserve_free_extents(space, n_free, n_ext));
success = fil_space_reserve_free_extents(space, n_free, n_ext);
if (success) {
return(TRUE);
}
try_to_extend:
success = fsp_try_extend_last_file(&n_pages_added, space,
space_header, mtr);
if (success && n_pages_added > 0) {
goto try_again;
}
return(FALSE);
}
/**************************************************************************

10
innobase/include/buf0flu.h
View File

@ -28,6 +28,16 @@ a margin of replaceable pages there. */
void
buf_flush_free_margin(void);
/*=======================*/
/************************************************************************
Initializes a page for writing to the tablespace. */
void
buf_flush_init_for_writing(
/*=======================*/
byte* page, /* in: page */
dulint newest_lsn, /* in: newest modification lsn to the page */
ulint space, /* in: space id */
ulint page_no); /* in: page number */
/***********************************************************************
This utility flushes dirty blocks from the end of the LRU list or flush_list.
NOTE 1: in the case of an LRU flush the calling thread may own latches to

21
innobase/include/dict0dict.h
View File

@ -105,7 +105,8 @@ dict_table_autoinc_initialize(
dict_table_t* table, /* in: table */
ib_longlong value); /* in: value which was assigned to a row */
/************************************************************************
Gets the next autoinc value, 0 if not yet initialized. */
Gets the next autoinc value, 0 if not yet initialized. If initialized,
increments the counter by 1. */
ib_longlong
dict_table_autoinc_get(
@ -113,6 +114,15 @@ dict_table_autoinc_get(
/* out: value for a new row, or 0 */
dict_table_t* table); /* in: table */
/************************************************************************
Reads the autoinc counter value, 0 if not yet initialized. Does not
increment the counter. */
ib_longlong
dict_table_autoinc_read(
/*====================*/
/* out: value of the counter */
dict_table_t* table); /* in: table */
/************************************************************************
Updates the autoinc counter if the value supplied is bigger than the
current value. If not inited, does nothing. */
@ -143,7 +153,10 @@ dict_table_rename_in_cache(
/*=======================*/
/* out: TRUE if success */
dict_table_t* table, /* in: table */
char* new_name); /* in: new name */
char* new_name, /* in: new name */
ibool rename_also_foreigns);/* in: in ALTER TABLE we want
to preserve the original table name
in constraints which reference it */
/**************************************************************************
Adds a foreign key constraint object to the dictionary cache. May free
the object if there already is an object with the same identifier in.
@ -284,6 +297,10 @@ Sprintfs to a string info on foreign keys of a table. */
void
dict_print_info_on_foreign_keys(
/*============================*/
ibool create_table_format, /* in: if TRUE then print in
a format suitable to be inserted into
a CREATE TABLE, otherwise in the format
of SHOW TABLE STATUS */
char* str, /* in/out: pointer to a string */
ulint len, /* in: space in str available for info */
dict_table_t* table); /* in: table */

21
innobase/include/fil0fil.h
View File

@ -64,8 +64,10 @@ extern fil_addr_t fil_addr_null;
#define FIL_PAGE_DATA 38 /* start of the data on the page */
/* File page trailer */
#define FIL_PAGE_END_LSN 8 /* this should be same as
FIL_PAGE_LSN */
#define FIL_PAGE_END_LSN 8 /* the low 4 bytes of this are used
to store the page checksum, the
last 4 bytes should be identical
to the last 4 bytes of FIL_PAGE_LSN */
#define FIL_PAGE_DATA_END 8
/* File page types */
@ -134,6 +136,21 @@ fil_space_truncate_start(
ulint trunc_len); /* in: truncate by this much; it is an error
if this does not equal to the combined size of
some initial files in the space */
/**************************************************************************
Tries to extend a data file by the number of pages given. Any fractions of a
megabyte are ignored. */
ibool
fil_extend_last_data_file(
/*======================*/
/* out: TRUE if success, also if we run
out of disk space we may return TRUE */
ulint* actual_increase,/* out: number of pages we were able to
extend, here the orginal size of the file and
the resulting size of the file are rounded
downwards to a full megabyte, and the
difference expressed in pages is returned */
ulint size_increase); /* in: try to extend this many pages */
/***********************************************************************
Frees a space object from a file system. Closes the files in the chain
but does not delete them. */

11
innobase/include/fsp0fsp.h
View File

@ -46,6 +46,17 @@ void
fsp_init(void);
/*==========*/
/**************************************************************************
Gets the current free limit of a tablespace. The free limit means the
place of the first page which has never been put to the the free list
for allocation. The space above that address is initialized to zero.
Sets also the global variable log_fsp_current_free_limit. */
ulint
fsp_header_get_free_limit(
/*======================*/
/* out: free limit in megabytes */
ulint space); /* in: space id */
/**************************************************************************
Initializes the space header of a new created space. */
void

47
innobase/include/log0log.h
View File

@ -26,6 +26,32 @@ extern ibool log_debug_writes;
#define LOG_WAIT_ALL_GROUPS 93
#define LOG_MAX_N_GROUPS 32
/********************************************************************
Sets the global variable log_fsp_current_free_limit. Also makes a checkpoint,
so that we know that the limit has been written to a log checkpoint field
on disk. */
void
log_fsp_current_free_limit_set_and_checkpoint(
/*==========================================*/
ulint limit); /* in: limit to set */
/***********************************************************************
Calculates where in log files we find a specified lsn. */
ulint
log_calc_where_lsn_is(
/*==================*/
/* out: log file number */
ib_longlong* log_file_offset, /* out: offset in that file
(including the header) */
dulint first_header_lsn, /* in: first log file start
lsn */
dulint lsn, /* in: lsn whose position to
determine */
ulint n_log_files, /* in: total number of log
files */
ib_longlong log_file_size); /* in: log file size
(including the header) */
/****************************************************************
Writes to the log the string given. The log must be released with
log_release. */
@ -225,6 +251,16 @@ Writes checkpoint info to groups. */
void
log_groups_write_checkpoint_info(void);
/*==================================*/
/**********************************************************
Writes info to a buffer of a log group when log files are created in
backup restoration. */
void
log_reset_first_header_and_checkpoint(
/*==================================*/
byte* hdr_buf,/* in: buffer which will be written to the start
of the first log file */
dulint lsn); /* in: lsn of the start of the first log file */
/************************************************************************
Starts an archiving operation. */
@ -507,7 +543,16 @@ extern log_t* log_sys;
+ LOG_MAX_N_GROUPS * 8)
#define LOG_CHECKPOINT_CHECKSUM_1 LOG_CHECKPOINT_ARRAY_END
#define LOG_CHECKPOINT_CHECKSUM_2 (4 + LOG_CHECKPOINT_ARRAY_END)
#define LOG_CHECKPOINT_SIZE (8 + LOG_CHECKPOINT_ARRAY_END)
#define LOG_CHECKPOINT_FSP_FREE_LIMIT (8 + LOG_CHECKPOINT_ARRAY_END)
/* current fsp free limit in the
tablespace, in units of one megabyte */
#define LOG_CHECKPOINT_FSP_MAGIC_N (12 + LOG_CHECKPOINT_ARRAY_END)
/* this magic number tells if the
checkpoint contains the above field:
the field was added to InnoDB-3.23.50 */
#define LOG_CHECKPOINT_SIZE (16 + LOG_CHECKPOINT_ARRAY_END)
#define LOG_CHECKPOINT_FSP_MAGIC_N_VAL 1441231243
/* Offsets of a log file header */
#define LOG_GROUP_ID 0 /* log group number */

82
innobase/include/log0recv.h
View File

@ -15,6 +15,39 @@ Created 9/20/1997 Heikki Tuuri
#include "hash0hash.h"
#include "log0log.h"
/***********************************************************************
Reads the checkpoint info needed in hot backup. */
ibool
recv_read_cp_info_for_backup(
/*=========================*/
/* out: TRUE if success */
byte* hdr, /* in: buffer containing the log group header */
dulint* lsn, /* out: checkpoint lsn */
ulint* offset, /* out: checkpoint offset in the log group */
ulint* fsp_limit,/* out: fsp limit, 1000000000 if the database
is running with < version 3.23.50 of InnoDB */
dulint* cp_no, /* out: checkpoint number */
dulint* first_header_lsn);
/* out: lsn of of the start of the first log file */
/***********************************************************************
Scans the log segment and n_bytes_scanned is set to the length of valid
log scanned. */
void
recv_scan_log_seg_for_backup(
/*=========================*/
byte* buf, /* in: buffer containing log data */
ulint buf_len, /* in: data length in that buffer */
dulint* scanned_lsn, /* in/out: lsn of buffer start,
we return scanned lsn */
ulint* scanned_checkpoint_no,
/* in/out: 4 lowest bytes of the
highest scanned checkpoint number so
far */
ulint* n_bytes_scanned);/* out: how much we were able to
scan, smaller than buf_len if log
data ended here */
/***********************************************************************
Returns TRUE if recovery is currently running. */
UNIV_INLINE
@ -35,6 +68,10 @@ read in, or also for a page already in the buffer pool. */
void
recv_recover_page(
/*==============*/
ibool recover_backup, /* in: TRUE if we are recovering a backup
page: then we do not acquire any latches
since the page was read in outside the
buffer pool */
ibool just_read_in, /* in: TRUE if the i/o-handler calls this for
a freshly read page */
page_t* page, /* in: buffer page */
@ -69,8 +106,15 @@ recv_scan_log_recs(
/*===============*/
/* out: TRUE if limit_lsn has been reached, or
not able to scan any more in this log group */
ibool apply_automatically,/* in: TRUE if we want this function to
apply log records automatically when the
hash table becomes full; in the hot backup tool
the tool does the applying, not this
function */
ulint available_memory,/* in: we let the hash table of recs to grow
to this size, at the maximum */
ibool store_to_hash, /* in: TRUE if the records should be stored
to the hash table; this is set FALSE if just
to the hash table; this is set to FALSE if just
debug checking is needed */
byte* buf, /* in: buffer containing a log segment or
garbage */
@ -92,6 +136,16 @@ recv_reset_logs(
ibool new_logs_created);/* in: TRUE if resetting logs is done
at the log creation; FALSE if it is done
after archive recovery */
/**********************************************************
Creates new log files after a backup has been restored. */
void
recv_reset_log_files_for_backup(
/*============================*/
char* log_dir, /* in: log file directory path */
ulint n_log_files, /* in: number of log files */
ulint log_file_size, /* in: log file size */
dulint lsn); /* in: new start lsn */
/************************************************************
Creates the recovery system. */
@ -102,8 +156,11 @@ recv_sys_create(void);
Inits the recovery system for a recovery operation. */
void
recv_sys_init(void);
/*===============*/
recv_sys_init(
/*==========*/
ibool recover_from_backup, /* in: TRUE if this is called
to recover from a hot backup */
ulint available_memory); /* in: available memory in bytes */
/***********************************************************************
Empties the hash table of stored log records, applying them to appropriate
pages. */
@ -118,6 +175,17 @@ recv_apply_hashed_log_recs(
disk and invalidated in buffer pool: this
alternative means that no new log records
can be generated during the application */
/***********************************************************************
Applies log records in the hash table to a backup. */
void
recv_apply_log_recs_for_backup(
/*===========================*/
ulint n_data_files, /* in: number of data files */
char** data_files, /* in: array containing the paths to the
data files */
ulint* file_sizes); /* in: sizes of the data files in database
pages */
/************************************************************
Recovers from archived log files, and also from log files, if they exist. */
@ -260,6 +328,14 @@ extern ibool recv_recovery_on;
extern ibool recv_no_ibuf_operations;
extern ibool recv_needed_recovery;
/* Size of the parsing buffer; it must accommodate RECV_SCAN_SIZE many
times! */
#define RECV_PARSING_BUF_SIZE (2 * 1024 * 1024)
/* Size of block reads when the log groups are scanned forward to do a
roll-forward */
#define RECV_SCAN_SIZE (4 * UNIV_PAGE_SIZE)
/* States of recv_addr_struct */
#define RECV_NOT_PROCESSED 71
#define RECV_BEING_READ 72

4
innobase/include/mem0mem.h
View File

@ -41,11 +41,11 @@ page buffer pool; the latter method is used for very big heaps */
/* The following start size is used for the first block in the memory heap if
the size is not specified, i.e., 0 is given as the parameter in the call of
create. The standard size is the maximum size of the blocks used for
create. The standard size is the maximum (payload) size of the blocks used for
allocations of small buffers. */
#define MEM_BLOCK_START_SIZE 64
#define MEM_BLOCK_STANDARD_SIZE 8192
#define MEM_BLOCK_STANDARD_SIZE 8000
/* If a memory heap is allowed to grow into the buffer pool, the following
is the maximum size for a single allocated buffer: */

30
innobase/include/os0file.h
View File

@ -11,6 +11,12 @@ Created 10/21/1995 Heikki Tuuri
#include "univ.i"
/* If the following is set to TRUE, we do not call os_file_flush in every
os_file_write */
extern ibool os_do_not_call_flush_at_each_write;
extern ibool os_has_said_disk_full;
#ifdef __WIN__
/* We define always WIN_ASYNC_IO, and check at run-time whether
@ -55,6 +61,9 @@ log. */
#define OS_FILE_CREATE 52
#define OS_FILE_OVERWRITE 53
#define OS_FILE_READ_ONLY 333
#define OS_FILE_READ_WRITE 444
/* Options for file_create */
#define OS_FILE_AIO 61
#define OS_FILE_NORMAL 62
@ -118,6 +127,27 @@ os_get_os_version(void);
/*===================*/
/* out: OS_WIN95, OS_WIN31, OS_WINNT (2000 == NT) */
/********************************************************************
Creates the seek mutexes used in positioned reads and writes. */
void
os_io_init_simple(void);
/*===================*/
/********************************************************************
A simple function to open or create a file. */
os_file_t
os_file_create_simple(
/*==================*/
/* out, own: handle to the file, not defined if error,
error number can be retrieved with os_get_last_error */
char* name, /* in: name of the file or path as a null-terminated
string */
ulint create_mode,/* in: OS_FILE_OPEN if an existing file is opened
(if does not exist, error), or OS_FILE_CREATE if a new
file is created (if exists, error) */
ulint access_type,/* in: OS_FILE_READ_ONLY or OS_FILE_READ_WRITE */
ibool* success);/* out: TRUE if succeed, FALSE if error */
/********************************************************************
Opens an existing file or creates a new. */
os_file_t

14
innobase/include/row0mysql.h
View File

@ -402,13 +402,13 @@ struct row_prebuilt_struct {
byte* ins_upd_rec_buff;/* buffer for storing data converted
to the Innobase format from the MySQL
format */
ibool in_update_remember_pos;
/* if an update is processed, then if
this flag is set to TRUE, it means
that the stored cursor position in
SELECT is the right position also
for the update: we can just restore
the cursor and save CPU time */
ibool hint_no_need_to_fetch_extra_cols;
/* normally this is TRUE, but
MySQL will set this to FALSE
if we might be required to fetch also
other columns than mentioned in the
query: the clustered index column(s),
or an auto-increment column*/
upd_node_t* upd_node; /* Innobase SQL update node used
to perform updates and deletes */
que_fork_t* ins_graph; /* Innobase SQL query graph used

21
innobase/include/srv0srv.h
View File

@ -24,10 +24,13 @@ extern char srv_fatal_errbuf[];
thread starts running */
extern os_event_t srv_lock_timeout_thread_event;
/* If the last data file is auto-extended, we add this many pages to it
at a time */
#define SRV_AUTO_EXTEND_INCREMENT (8 * ((1024 * 1024) / UNIV_PAGE_SIZE))
/* Server parameters which are read from the initfile */
extern char* srv_data_home;
extern char* srv_logs_home;
extern char* srv_arch_dir;
extern ulint srv_n_data_files;
@ -35,6 +38,9 @@ extern char** srv_data_file_names;
extern ulint* srv_data_file_sizes;
extern ulint* srv_data_file_is_raw_partition;
extern ibool srv_auto_extend_last_data_file;
extern ulint srv_last_file_size_max;
extern ibool srv_created_new_raw;
#define SRV_NEW_RAW 1
@ -185,6 +191,19 @@ srv_boot(void);
/*==========*/
/* out: DB_SUCCESS or error code */
/*************************************************************************
Initializes the server. */
void
srv_init(void);
/*==========*/
/*************************************************************************
Initializes the synchronization primitives, memory system, and the thread
local storage. */
void
srv_general_init(void);
/*==================*/
/*************************************************************************
Gets the number of threads in the system. */
ulint

50
innobase/include/srv0start.h
View File

@ -12,6 +12,56 @@ Created 10/10/1995 Heikki Tuuri
#include "univ.i"
/*************************************************************************
Normalizes a directory path for Windows: converts slashes to backslashes. */
void
srv_normalize_path_for_win(
/*=======================*/
char* str); /* in/out: null-terminated character string */
/*************************************************************************
Adds a slash or a backslash to the end of a string if it is missing
and the string is not empty. */
char*
srv_add_path_separator_if_needed(
/*=============================*/
/* out, own: string which has the separator if the
string is not empty */
char* str); /* in: null-terminated character string */
/*************************************************************************
Reads the data files and their sizes from a character string given in
the .cnf file. */
ibool
srv_parse_data_file_paths_and_sizes(
/*================================*/
/* out: TRUE if ok, FALSE if parsing
error */
char* str, /* in: the data file path string */
char*** data_file_names, /* out, own: array of data file
names */
ulint** data_file_sizes, /* out, own: array of data file sizes
in megabytes */
ulint** data_file_is_raw_partition,/* out, own: array of flags
showing which data files are raw
partitions */
ulint* n_data_files, /* out: number of data files */
ibool* is_auto_extending, /* out: TRUE if the last data file is
auto-extending */
ulint* max_auto_extend_size); /* out: max auto extend size for the
last file if specified, 0 if not */
/*************************************************************************
Reads log group home directories from a character string given in
the .cnf file. */
ibool
srv_parse_log_group_home_dirs(
/*==========================*/
/* out: TRUE if ok, FALSE if parsing
error */
char* str, /* in: character string */
char*** log_group_home_dirs); /* out, own: log group home dirs */
/********************************************************************
Starts Innobase and creates a new database if database files
are not found and the user wants. Server parameters are

9
innobase/include/trx0sys.h
View File

@ -44,6 +44,15 @@ half-written pages in the data files. */
void
trx_sys_doublewrite_restore_corrupt_pages(void);
/*===========================================*/
/********************************************************************
Determines if a page number is located inside the doublewrite buffer. */
ibool
trx_doublewrite_page_inside(
/*========================*/
/* out: TRUE if the location is inside
the two blocks of the doublewrite buffer */
ulint page_no); /* in: page number */
/*******************************************************************
Checks if a page address is the trx sys header page. */
UNIV_INLINE

9
innobase/include/ut0byte.h
View File

@ -55,6 +55,15 @@ ut_dulint_get_low(
/* out: 32 bits in ulint */
dulint d); /* in: dulint */
/***********************************************************
Converts a dulint (a struct of 2 ulints) to ib_longlong, which is a 64-bit
integer type. */
UNIV_INLINE
ib_longlong
ut_conv_dulint_to_longlong(
/*=======================*/
/* out: value in ib_longlong type */
dulint d); /* in: dulint */
/***********************************************************
Tests if a dulint is zero. */
UNIV_INLINE
ibool

2
innobase/include/ut0rnd.h
View File

@ -35,7 +35,7 @@ ut_rnd_gen_next_ulint(
/*************************************************************
The following function generates 'random' ulint integers which
enumerate the value space (let there be N of them) of ulint integers
in a pseudo random fashion. Note that the same integer is repeated
in a pseudo-random fashion. Note that the same integer is repeated
always after N calls to the generator. */
UNIV_INLINE
ulint

19
innobase/include/ut0ut.h
View File

@ -17,6 +17,16 @@ Created 1/20/1994 Heikki Tuuri
typedef time_t ib_time_t;
/************************************************************
Gets the high 32 bits in a ulint. That is makes a shift >> 32,
but since there seem to be compiler bugs in both gcc and Visual C++,
we do this by a special conversion. */
ulint
ut_get_high32(
/*==========*/
/* out: a >> 32 */
ulint a); /* in: ulint */
/**********************************************************
Calculates the minimum of two ulints. */
UNIV_INLINE
@ -144,6 +154,15 @@ void
ut_print_timestamp(
/*===============*/
FILE* file); /* in: file where to print */
/**************************************************************
Returns current year, month, day. */
void
ut_get_year_month_day(
/*==================*/
ulint* year, /* out: current year */
ulint* month, /* out: month */
ulint* day); /* out: day */
/*****************************************************************
Runs an idle loop on CPU. The argument gives the desired delay
in microseconds on 100 MHz Pentium + Visual C++. */

159
innobase/log/log0log.c
View File

@ -1,7 +1,7 @@
/******************************************************
Database log
(c) 1995-1997 InnoDB Oy
(c) 1995-1997 Innobase Oy
Created 12/9/1995 Heikki Tuuri
*******************************************************/
@ -24,6 +24,9 @@ Created 12/9/1995 Heikki Tuuri
#include "trx0sys.h"
#include "trx0trx.h"
/* Current free limit; protected by the log sys mutex; 0 means uninitialized */
ulint log_fsp_current_free_limit = 0;
/* Global log system variable */
log_t* log_sys = NULL;
@ -95,6 +98,32 @@ void
log_archive_margin(void);
/*====================*/
/********************************************************************
Sets the global variable log_fsp_current_free_limit. Also makes a checkpoint,
so that we know that the limit has been written to a log checkpoint field
on disk. */
void
log_fsp_current_free_limit_set_and_checkpoint(
/*==========================================*/
ulint limit) /* in: limit to set */
{
ibool success;
mutex_enter(&(log_sys->mutex));
log_fsp_current_free_limit = limit;
mutex_exit(&(log_sys->mutex));
/* Try to make a synchronous checkpoint */
success = FALSE;
while (!success) {
success = log_checkpoint(TRUE, TRUE);
}
}
/********************************************************************
Returns the oldest modified block lsn in the pool, or log_sys->lsn if none
@ -436,6 +465,51 @@ log_group_calc_lsn_offset(
return(log_group_calc_real_offset(offset, group));
}
/***********************************************************************
Calculates where in log files we find a specified lsn. */
ulint
log_calc_where_lsn_is(
/*==================*/
/* out: log file number */
ib_longlong* log_file_offset, /* out: offset in that file
(including the header) */
dulint first_header_lsn, /* in: first log file start
lsn */
dulint lsn, /* in: lsn whose position to
determine */
ulint n_log_files, /* in: total number of log
files */
ib_longlong log_file_size) /* in: log file size
(including the header) */
{
ib_longlong ib_lsn;
ib_longlong ib_first_header_lsn;
ib_longlong capacity = log_file_size - LOG_FILE_HDR_SIZE;
ulint file_no;
ib_longlong add_this_many;
ib_lsn = ut_conv_dulint_to_longlong(lsn);
ib_first_header_lsn = ut_conv_dulint_to_longlong(first_header_lsn);
if (ib_lsn < ib_first_header_lsn) {
add_this_many = 1 + (ib_first_header_lsn - ib_lsn)
/ (capacity * (ib_longlong)n_log_files);
ib_lsn += add_this_many
* capacity * (ib_longlong)n_log_files;
}
ut_a(ib_lsn >= ib_first_header_lsn);
file_no = ((ulint)((ib_lsn - ib_first_header_lsn) / capacity))
% n_log_files;
*log_file_offset = (ib_lsn - ib_first_header_lsn) % capacity;
*log_file_offset = *log_file_offset + LOG_FILE_HDR_SIZE;
return(file_no);
}
/************************************************************
Sets the field values in group to correspond to a given lsn. For this function
to work, the values must already be correctly initialized to correspond to
@ -653,7 +727,7 @@ log_init(void)
#ifdef UNIV_LOG_DEBUG
recv_sys_create();
recv_sys_init();
recv_sys_init(FALSE, buf_pool_get_curr_size());
recv_sys->parse_start_lsn = log_sys->lsn;
recv_sys->scanned_lsn = log_sys->lsn;
@ -1002,9 +1076,28 @@ loop:
}
if (log_debug_writes) {
ulint i;
printf(
"Writing log file segment to group %lu offset %lu len %lu\n",
group->id, next_offset, write_len);
"Writing log file segment to group %lu offset %lu len %lu\n"
"start lsn %lu %lu\n",
group->id, next_offset, write_len,
ut_dulint_get_high(start_lsn),
ut_dulint_get_low(start_lsn));
printf(
"First block n:o %lu last block n:o %lu\n",
log_block_get_hdr_no(buf),
log_block_get_hdr_no(
buf + write_len - OS_FILE_LOG_BLOCK_SIZE));
ut_a(log_block_get_hdr_no(buf)
== log_block_convert_lsn_to_no(start_lsn));
for (i = 0; i < write_len / OS_FILE_LOG_BLOCK_SIZE; i++) {
ut_a(log_block_get_hdr_no(buf) + i
== log_block_get_hdr_no(buf
+ i * OS_FILE_LOG_BLOCK_SIZE));
}
}
if (log_do_write) {
@ -1346,7 +1439,7 @@ log_group_checkpoint(
ulint i;
ut_ad(mutex_own(&(log_sys->mutex)));
ut_ad(LOG_CHECKPOINT_SIZE <= OS_FILE_LOG_BLOCK_SIZE);
ut_a(LOG_CHECKPOINT_SIZE <= OS_FILE_LOG_BLOCK_SIZE);
buf = group->checkpoint_buf;
@ -1394,6 +1487,15 @@ log_group_checkpoint(
LOG_CHECKPOINT_CHECKSUM_2 - LOG_CHECKPOINT_LSN);
mach_write_to_4(buf + LOG_CHECKPOINT_CHECKSUM_2, fold);
/* Starting from InnoDB-3.23.50, we also write info on allocated
size in the tablespace */
mach_write_to_4(buf + LOG_CHECKPOINT_FSP_FREE_LIMIT,
log_fsp_current_free_limit);
mach_write_to_4(buf + LOG_CHECKPOINT_FSP_MAGIC_N,
LOG_CHECKPOINT_FSP_MAGIC_N_VAL);
/* We alternate the physical place of the checkpoint info in the first
log file */
@ -1428,6 +1530,48 @@ log_group_checkpoint(
}
}
/**********************************************************
Writes info to a buffer of a log group when log files are created in
backup restoration. */
void
log_reset_first_header_and_checkpoint(
/*==================================*/
byte* hdr_buf,/* in: buffer which will be written to the start
of the first log file */
dulint lsn) /* in: lsn of the start of the first log file
+ LOG_BLOCK_HDR_SIZE */
{
ulint fold;
byte* buf;
mach_write_to_4(hdr_buf + LOG_GROUP_ID, 0);
mach_write_to_8(hdr_buf + LOG_FILE_START_LSN, lsn);
buf = hdr_buf + LOG_CHECKPOINT_1;
mach_write_to_8(buf + LOG_CHECKPOINT_NO, ut_dulint_zero);
mach_write_to_8(buf + LOG_CHECKPOINT_LSN, lsn);
mach_write_to_4(buf + LOG_CHECKPOINT_OFFSET,
LOG_FILE_HDR_SIZE + LOG_BLOCK_HDR_SIZE);
mach_write_to_4(buf + LOG_CHECKPOINT_LOG_BUF_SIZE, 2 * 1024 * 1024);
mach_write_to_8(buf + LOG_CHECKPOINT_ARCHIVED_LSN, ut_dulint_max);
fold = ut_fold_binary(buf, LOG_CHECKPOINT_CHECKSUM_1);
mach_write_to_4(buf + LOG_CHECKPOINT_CHECKSUM_1, fold);
fold = ut_fold_binary(buf + LOG_CHECKPOINT_LSN,
LOG_CHECKPOINT_CHECKSUM_2 - LOG_CHECKPOINT_LSN);
mach_write_to_4(buf + LOG_CHECKPOINT_CHECKSUM_2, fold);
/* Starting from InnoDB-3.23.50, we should also write info on
allocated size in the tablespace, but unfortunately we do not
know it here */
}
/**********************************************************
Reads a checkpoint info from a log group header to log_sys->checkpoint_buf. */
@ -2795,7 +2939,10 @@ log_check_log_recs(
ut_memcpy(scan_buf, start, end - start);
recv_scan_log_recs(FALSE, scan_buf, end - start,
recv_scan_log_recs(TRUE,
buf_pool_get_curr_size() -
RECV_POOL_N_FREE_BLOCKS * UNIV_PAGE_SIZE,
FALSE, scan_buf, end - start,
ut_dulint_align_down(buf_start_lsn,
OS_FILE_LOG_BLOCK_SIZE),
&contiguous_lsn, &scanned_lsn);

608
innobase/log/log0recv.c
View File

@ -1,7 +1,7 @@
/******************************************************
Recovery
(c) 1997 InnoDB Oy
(c) 1997 Innobase Oy
Created 9/20/1997 Heikki Tuuri
*******************************************************/
@ -33,13 +33,6 @@ Created 9/20/1997 Heikki Tuuri
#include "dict0boot.h"
#include "fil0fil.h"
/* Size of block reads when the log groups are scanned forward to do a
roll-forward */
#define RECV_SCAN_SIZE (4 * UNIV_PAGE_SIZE)
/* Size of the parsing buffer */
#define RECV_PARSING_BUF_SIZE LOG_BUFFER_SIZE
/* Log records are stored in the hash table in chunks at most of this size;
this must be less than UNIV_PAGE_SIZE as it is stored in the buffer pool */
#define RECV_DATA_BLOCK_SIZE (MEM_MAX_ALLOC_IN_BUF - sizeof(recv_data_t))
@ -69,6 +62,9 @@ ibool recv_no_ibuf_operations = FALSE;
log scan */
ulint recv_scan_print_counter = 0;
ibool recv_is_from_backup = FALSE;
/************************************************************
Creates the recovery system. */
@ -94,8 +90,11 @@ recv_sys_create(void)
Inits the recovery system for a recovery operation. */
void
recv_sys_init(void)
/*===============*/
recv_sys_init(
/*==========*/
ibool recover_from_backup, /* in: TRUE if this is called
to recover from a hot backup */
ulint available_memory) /* in: available memory in bytes */
{
if (recv_sys->heap != NULL) {
@ -104,13 +103,18 @@ recv_sys_init(void)
mutex_enter(&(recv_sys->mutex));
recv_sys->heap = mem_heap_create_in_buffer(256);
if (!recover_from_backup) {
recv_sys->heap = mem_heap_create_in_buffer(256);
} else {
recv_sys->heap = mem_heap_create(256);
recv_is_from_backup = TRUE;
}
recv_sys->buf = ut_malloc(RECV_PARSING_BUF_SIZE);
recv_sys->len = 0;
recv_sys->recovered_offset = 0;
recv_sys->addr_hash = hash_create(buf_pool_get_curr_size() / 64);
recv_sys->addr_hash = hash_create(available_memory / 64);
recv_sys->n_addrs = 0;
recv_sys->apply_log_recs = FALSE;
@ -337,7 +341,7 @@ recv_synchronize_groups(
start_lsn = ut_dulint_align_down(recovered_lsn, OS_FILE_LOG_BLOCK_SIZE);
end_lsn = ut_dulint_align_up(recovered_lsn, OS_FILE_LOG_BLOCK_SIZE);
ut_ad(ut_dulint_cmp(start_lsn, end_lsn) != 0);
ut_a(ut_dulint_cmp(start_lsn, end_lsn) != 0);
log_group_read_log_seg(LOG_RECOVER, recv_sys->last_block,
up_to_date_group, start_lsn, end_lsn);
@ -377,6 +381,35 @@ recv_synchronize_groups(
mutex_enter(&(log_sys->mutex));
}
/***************************************************************************
Checks the consistency of the checkpoint info */
static
ibool
recv_check_cp_is_consistent(
/*========================*/
/* out: TRUE if ok */
byte* buf) /* in: buffer containing checkpoint info */
{
ulint fold;
fold = ut_fold_binary(buf, LOG_CHECKPOINT_CHECKSUM_1);
if ((fold & 0xFFFFFFFF) != mach_read_from_4(buf
+ LOG_CHECKPOINT_CHECKSUM_1)) {
return(FALSE);
}
fold = ut_fold_binary(buf + LOG_CHECKPOINT_LSN,
LOG_CHECKPOINT_CHECKSUM_2 - LOG_CHECKPOINT_LSN);
if ((fold & 0xFFFFFFFF) != mach_read_from_4(buf
+ LOG_CHECKPOINT_CHECKSUM_2)) {
return(FALSE);
}
return(TRUE);
}
/************************************************************
Looks for the maximum consistent checkpoint from the log groups. */
static
@ -392,7 +425,6 @@ recv_find_max_checkpoint(
dulint max_no;
dulint checkpoint_no;
ulint field;
ulint fold;
byte* buf;
group = UT_LIST_GET_FIRST(log_sys->log_groups);
@ -410,17 +442,11 @@ recv_find_max_checkpoint(
log_group_read_checkpoint_info(group, field);
/* Check the consistency of the checkpoint info */
fold = ut_fold_binary(buf, LOG_CHECKPOINT_CHECKSUM_1);
if ((fold & 0xFFFFFFFF)
!= mach_read_from_4(buf
+ LOG_CHECKPOINT_CHECKSUM_1)) {
if (!recv_check_cp_is_consistent(buf)) {
if (log_debug_writes) {
fprintf(stderr,
"InnoDB: Checkpoint in group %lu at %lu invalid, %lu, %lu\n",
"InnoDB: Checkpoint in group %lu at %lu invalid, %lu\n",
group->id, field,
fold & 0xFFFFFFFF,
mach_read_from_4(buf
+ LOG_CHECKPOINT_CHECKSUM_1));
@ -429,23 +455,6 @@ recv_find_max_checkpoint(
goto not_consistent;
}
fold = ut_fold_binary(buf + LOG_CHECKPOINT_LSN,
LOG_CHECKPOINT_CHECKSUM_2
- LOG_CHECKPOINT_LSN);
if ((fold & 0xFFFFFFFF)
!= mach_read_from_4(buf
+ LOG_CHECKPOINT_CHECKSUM_2)) {
if (log_debug_writes) {
fprintf(stderr,
"InnoDB: Checkpoint in group %lu at %lu invalid, %lu, %lu\n",
group->id, field,
fold & 0xFFFFFFFF,
mach_read_from_4(buf
+ LOG_CHECKPOINT_CHECKSUM_2));
}
goto not_consistent;
}
group->state = LOG_GROUP_OK;
group->lsn = mach_read_from_8(buf
@ -476,7 +485,13 @@ recv_find_max_checkpoint(
if (*max_group == NULL) {
fprintf(stderr, "InnoDB: No valid checkpoint found\n");
fprintf(stderr,
"InnoDB: No valid checkpoint found.\n"
"InnoDB: If this error appears when you are creating an InnoDB database,\n"
"InnoDB: the problem may be that during an earlier attempt you managed\n"
"InnoDB: to create the InnoDB data files, but log file creation failed.\n"
"InnoDB: If that is the case, please refer to section 3.1 of\n"
"InnoDB: http://www.innodb.com/ibman.html\n");
return(DB_ERROR);
}
@ -484,6 +499,162 @@ recv_find_max_checkpoint(
return(DB_SUCCESS);
}
/***********************************************************************
Reads the checkpoint info needed in hot backup. */
ibool
recv_read_cp_info_for_backup(
/*=========================*/
/* out: TRUE if success */
byte* hdr, /* in: buffer containing the log group header */
dulint* lsn, /* out: checkpoint lsn */
ulint* offset, /* out: checkpoint offset in the log group */
ulint* fsp_limit,/* out: fsp limit, 1000000000 if the database
is running with < version 3.23.50 of InnoDB */
dulint* cp_no, /* out: checkpoint number */
dulint* first_header_lsn)
/* out: lsn of of the start of the first log file */
{
ulint max_cp = 0;
dulint max_cp_no = ut_dulint_zero;
byte* cp_buf;
cp_buf = hdr + LOG_CHECKPOINT_1;
if (recv_check_cp_is_consistent(cp_buf)) {
max_cp_no = mach_read_from_8(cp_buf + LOG_CHECKPOINT_NO);
max_cp = LOG_CHECKPOINT_1;
}
cp_buf = hdr + LOG_CHECKPOINT_2;
if (recv_check_cp_is_consistent(cp_buf)) {
if (ut_dulint_cmp(mach_read_from_8(cp_buf + LOG_CHECKPOINT_NO),
max_cp_no) > 0) {
max_cp = LOG_CHECKPOINT_2;
}
}
if (max_cp == 0) {
return(FALSE);
}
cp_buf = hdr + max_cp;
*lsn = mach_read_from_8(cp_buf + LOG_CHECKPOINT_LSN);
*offset = mach_read_from_4(cp_buf + LOG_CHECKPOINT_OFFSET);
/* If the user is running a pre-3.23.50 version of InnoDB, its
checkpoint data does not contain the fsp limit info */
if (mach_read_from_4(cp_buf + LOG_CHECKPOINT_FSP_MAGIC_N)
== LOG_CHECKPOINT_FSP_MAGIC_N_VAL) {
*fsp_limit = mach_read_from_4(
cp_buf + LOG_CHECKPOINT_FSP_FREE_LIMIT);
if (*fsp_limit == 0) {
*fsp_limit = 1000000000;
}
} else {
*fsp_limit = 1000000000;
}
/* printf("fsp limit %lu MB\n", *fsp_limit); */
*cp_no = mach_read_from_8(cp_buf + LOG_CHECKPOINT_NO);
*first_header_lsn = mach_read_from_8(hdr + LOG_FILE_START_LSN);
return(TRUE);
}
/***********************************************************************
Scans the log segment and n_bytes_scanned is set to the length of valid
log scanned. */
void
recv_scan_log_seg_for_backup(
/*=========================*/
byte* buf, /* in: buffer containing log data */
ulint buf_len, /* in: data length in that buffer */
dulint* scanned_lsn, /* in/out: lsn of buffer start,
we return scanned lsn */
ulint* scanned_checkpoint_no,
/* in/out: 4 lowest bytes of the
highest scanned checkpoint number so
far */
ulint* n_bytes_scanned)/* out: how much we were able to
scan, smaller than buf_len if log
data ended here */
{
ulint data_len;
byte* log_block;
ulint no;
*n_bytes_scanned = 0;
for (log_block = buf; log_block < buf + buf_len;
log_block += OS_FILE_LOG_BLOCK_SIZE) {
no = log_block_get_hdr_no(log_block);
/* fprintf(stderr, "Log block header no %lu\n", no); */
if (no != log_block_get_trl_no(log_block)
|| no != log_block_convert_lsn_to_no(*scanned_lsn)) {
/* printf(
"Log block n:o %lu, trailer n:o %lu, scanned lsn n:o %lu\n",
no, log_block_get_trl_no(log_block),
log_block_convert_lsn_to_no(*scanned_lsn));
*/
/* Garbage or an incompletely written log block */
log_block += OS_FILE_LOG_BLOCK_SIZE;
/* printf(
"Next log block n:o %lu, trailer n:o %lu\n",
log_block_get_hdr_no(log_block),
log_block_get_trl_no(log_block));
*/
break;
}
if (*scanned_checkpoint_no > 0
&& log_block_get_checkpoint_no(log_block)
< *scanned_checkpoint_no
&& *scanned_checkpoint_no
- log_block_get_checkpoint_no(log_block)
> 0x80000000) {
/* Garbage from a log buffer flush which was made
before the most recent database recovery */
printf("Scanned cp n:o %lu, block cp n:o %lu\n",
*scanned_checkpoint_no,
log_block_get_checkpoint_no(log_block));
break;
}
data_len = log_block_get_data_len(log_block);
*scanned_checkpoint_no
= log_block_get_checkpoint_no(log_block);
*scanned_lsn = ut_dulint_add(*scanned_lsn, data_len);
*n_bytes_scanned += data_len;
if (data_len < OS_FILE_LOG_BLOCK_SIZE) {
/* Log data ends here */
/* printf("Log block data len %lu\n", data_len); */
break;
}
}
}
/***********************************************************************
Tries to parse a single log record body and also applies it to a page if
specified. */
@ -625,7 +796,6 @@ recv_get_fil_addr_struct(
recv_addr = HASH_GET_FIRST(recv_sys->addr_hash,
recv_hash(space, page_no));
while (recv_addr) {
if ((recv_addr->space == space)
&& (recv_addr->page_no == page_no)) {
@ -755,6 +925,10 @@ read in, or also for a page already in the buffer pool. */
void
recv_recover_page(
/*==============*/
ibool recover_backup, /* in: TRUE if we are recovering a backup
page: then we do not acquire any latches
since the page was read in outside the
buffer pool */
ibool just_read_in, /* in: TRUE if the i/o-handler calls this for
a freshly read page */
page_t* page, /* in: buffer page */
@ -799,39 +973,48 @@ recv_recover_page(
mutex_exit(&(recv_sys->mutex));
block = buf_block_align(page);
if (just_read_in) {
/* Move the ownership of the x-latch on the page to this OS
thread, so that we can acquire a second x-latch on it. This
is needed for the operations to the page to pass the debug
checks. */
rw_lock_x_lock_move_ownership(&(block->lock));
}
mtr_start(&mtr);
mtr_set_log_mode(&mtr, MTR_LOG_NONE);
success = buf_page_get_known_nowait(RW_X_LATCH, page, BUF_KEEP_OLD,
if (!recover_backup) {
block = buf_block_align(page);
if (just_read_in) {
/* Move the ownership of the x-latch on the page to this OS
thread, so that we can acquire a second x-latch on it. This
is needed for the operations to the page to pass the debug
checks. */
rw_lock_x_lock_move_ownership(&(block->lock));
}
success = buf_page_get_known_nowait(RW_X_LATCH, page,
BUF_KEEP_OLD,
IB__FILE__, __LINE__,
&mtr);
ut_a(success);
ut_a(success);
buf_page_dbg_add_level(page, SYNC_NO_ORDER_CHECK);
buf_page_dbg_add_level(page, SYNC_NO_ORDER_CHECK);
}
/* Read the newest modification lsn from the page */
page_lsn = mach_read_from_8(page + FIL_PAGE_LSN);
/* It may be that the page has been modified in the buffer pool: read
the newest modification lsn there */
if (!recover_backup) {
/* It may be that the page has been modified in the buffer
pool: read the newest modification lsn there */
page_newest_lsn = buf_frame_get_newest_modification(page);
page_newest_lsn = buf_frame_get_newest_modification(page);
if (!ut_dulint_is_zero(page_newest_lsn)) {
if (!ut_dulint_is_zero(page_newest_lsn)) {
page_lsn = page_newest_lsn;
page_lsn = page_newest_lsn;
}
} else {
/* In recovery from a backup we do not use the buffer
pool */
page_newest_lsn = ut_dulint_zero;
}
modification_to_page = FALSE;
@ -852,13 +1035,13 @@ recv_recover_page(
buf = ((byte*)(recv->data)) + sizeof(recv_data_t);
}
if ((recv->type == MLOG_INIT_FILE_PAGE)
|| (recv->type == MLOG_FULL_PAGE)) {
/* A new file page may has been taken into use,
if (recv->type == MLOG_INIT_FILE_PAGE
|| recv->type == MLOG_FULL_PAGE) {
/* A new file page may have been taken into use,
or we have stored the full contents of the page:
in this case it may be that the original log record
type was MLOG_INIT_FILE_PAGE, and we replaced it
with MLOG_FULL_PAGE, thus to we have to apply
with MLOG_FULL_PAGE, thus we have to apply
any record of type MLOG_FULL_PAGE */
page_lsn = page_newest_lsn;
@ -885,6 +1068,13 @@ recv_recover_page(
recv_parse_or_apply_log_rec_body(recv->type, buf,
buf + recv->len, page, &mtr);
mach_write_to_8(page + UNIV_PAGE_SIZE
- FIL_PAGE_END_LSN,
ut_dulint_add(recv->start_lsn,
recv->len));
mach_write_to_8(page + FIL_PAGE_LSN,
ut_dulint_add(recv->start_lsn,
recv->len));
}
if (recv->len > RECV_DATA_BLOCK_SIZE) {
@ -903,7 +1093,7 @@ recv_recover_page(
mutex_exit(&(recv_sys->mutex));
if (modification_to_page) {
if (!recover_backup && modification_to_page) {
buf_flush_recv_note_modification(block, start_lsn, end_lsn);
}
@ -1038,8 +1228,8 @@ loop:
buf_page_dbg_add_level(page,
SYNC_NO_ORDER_CHECK);
recv_recover_page(FALSE, page, space,
page_no);
recv_recover_page(FALSE, FALSE, page,
space, page_no);
mtr_commit(&mtr);
} else {
recv_read_in_area(space, page_no);
@ -1111,6 +1301,95 @@ loop:
mutex_exit(&(recv_sys->mutex));
}
/***********************************************************************
Applies log records in the hash table to a backup. */
void
recv_apply_log_recs_for_backup(
/*===========================*/
ulint n_data_files, /* in: number of data files */
char** data_files, /* in: array containing the paths to the
data files */
ulint* file_sizes) /* in: sizes of the data files in database
pages */
{
recv_addr_t* recv_addr;
os_file_t data_file;
ulint n_pages_total = 0;
ulint nth_file = 0;
ulint nth_page_in_file= 0;
byte* page;
ibool success;
ulint i;
recv_sys->apply_log_recs = TRUE;
recv_sys->apply_batch_on = TRUE;
page = buf_pool->frame_zero;
for (i = 0; i < n_data_files; i++) {
n_pages_total += file_sizes[i];
}
printf(
"InnoDB: Starting an apply batch of log records to the database...\n"
"InnoDB: Progress in percents: ");
for (i = 0; i < n_pages_total; i++) {
if (i == 0 || nth_page_in_file == file_sizes[nth_file]) {
if (i != 0) {
nth_file++;
nth_page_in_file = 0;
os_file_flush(data_file);
os_file_close(data_file);
}
data_file = os_file_create_simple(data_files[nth_file],
OS_FILE_OPEN,
OS_FILE_READ_WRITE,
&success);
ut_a(success);
}
recv_addr = recv_get_fil_addr_struct(0, i);
if (recv_addr != NULL) {
os_file_read(data_file, page,
(nth_page_in_file << UNIV_PAGE_SIZE_SHIFT)
& 0xFFFFFFFF,
nth_page_in_file >> (32 - UNIV_PAGE_SIZE_SHIFT),
UNIV_PAGE_SIZE);
recv_recover_page(TRUE, FALSE, page, 0, i);
buf_flush_init_for_writing(page,
mach_read_from_8(page + FIL_PAGE_LSN),
0, i);
os_file_write(data_files[nth_file],
data_file, page,
(nth_page_in_file << UNIV_PAGE_SIZE_SHIFT)
& 0xFFFFFFFF,
nth_page_in_file >> (32 - UNIV_PAGE_SIZE_SHIFT),
UNIV_PAGE_SIZE);
}
if ((100 * i) / n_pages_total
!= (100 * (i + 1)) / n_pages_total) {
printf("%lu ", (100 * i) / n_pages_total);
fflush(stdout);
}
nth_page_in_file++;
}
os_file_flush(data_file);
os_file_close(data_file);
recv_sys_empty_hash();
}
/***********************************************************************
In the debug version, updates the replica of a file page, based on a log
record. */
@ -1430,12 +1709,13 @@ recv_check_incomplete_log_recs(
/***********************************************************
Parses log records from a buffer and stores them to a hash table to wait
merging to file pages. If the hash table becomes too full, applies it
automatically to file pages. */
void
merging to file pages. */
static
ibool
recv_parse_log_recs(
/*================*/
/* out: TRUE if the hash table of parsed log
records became full */
ibool store_to_hash) /* in: TRUE if the records should be stored
to the hash table; this is set to FALSE if just
debug checking is needed */
@ -1462,7 +1742,7 @@ loop:
if (ptr == end_ptr) {
return;
return(FALSE);
}
single_rec = (ulint)*ptr & MLOG_SINGLE_REC_FLAG;
@ -1476,7 +1756,7 @@ loop:
&page_no, &body);
if (len == 0) {
return;
return(FALSE);
}
new_recovered_lsn = recv_calc_lsn_on_data_add(old_lsn, len);
@ -1487,7 +1767,7 @@ loop:
that also the next log block should have been scanned
in */
return;
return(FALSE);
}
recv_sys->recovered_offset += len;
@ -1529,7 +1809,7 @@ loop:
&page_no, &body);
if (len == 0) {
return;
return(FALSE);
}
if ((!store_to_hash) && (type != MLOG_MULTI_REC_END)) {
@ -1570,27 +1850,9 @@ loop:
that also the next log block should have been scanned
in */
return;
return(FALSE);
}
if (2 * n_recs * (sizeof(recv_t) + sizeof(recv_addr_t))
+ total_len
+ mem_heap_get_size(recv_sys->heap)
+ RECV_POOL_N_FREE_BLOCKS * UNIV_PAGE_SIZE
> buf_pool_get_curr_size()) {
/* Hash table of log records will grow too big:
empty it */
recv_apply_hashed_log_recs(FALSE);
}
ut_ad(2 * n_recs * (sizeof(recv_t) + sizeof(recv_addr_t))
+ total_len
+ mem_heap_get_size(recv_sys->heap)
+ RECV_POOL_N_FREE_BLOCKS * UNIV_PAGE_SIZE
< buf_pool_get_curr_size());
/* Add all the records to the hash table */
ptr = recv_sys->buf + recv_sys->recovered_offset;
@ -1628,17 +1890,6 @@ loop:
}
}
if (store_to_hash && buf_get_free_list_len()
< RECV_POOL_N_FREE_BLOCKS) {
/* Hash table of log records has grown too big: empty it;
FALSE means no ibuf operations allowed, as we cannot add
new records to the log yet: they would be produced by ibuf
operations */
recv_apply_hashed_log_recs(FALSE);
}
goto loop;
}
@ -1713,7 +1964,7 @@ recv_sys_add_to_parsing_buf(
recv_sys->len += end_offset - start_offset;
ut_ad(recv_sys->len <= RECV_PARSING_BUF_SIZE);
ut_a(recv_sys->len <= RECV_PARSING_BUF_SIZE);
}
return(TRUE);
@ -1743,6 +1994,13 @@ recv_scan_log_recs(
/*===============*/
/* out: TRUE if limit_lsn has been reached, or
not able to scan any more in this log group */
ibool apply_automatically,/* in: TRUE if we want this function to
apply log records automatically when the
hash table becomes full; in the hot backup tool
the tool does the applying, not this
function */
ulint available_memory,/* in: we let the hash table of recs to grow
to this size, at the maximum */
ibool store_to_hash, /* in: TRUE if the records should be stored
to the hash table; this is set to FALSE if just
debug checking is needed */
@ -1764,6 +2022,8 @@ recv_scan_log_recs(
ut_ad(ut_dulint_get_low(start_lsn) % OS_FILE_LOG_BLOCK_SIZE == 0);
ut_ad(len % OS_FILE_LOG_BLOCK_SIZE == 0);
ut_ad(len > 0);
ut_a(apply_automatically <= TRUE);
ut_a(store_to_hash <= TRUE);
finished = FALSE;
@ -1845,6 +2105,13 @@ recv_scan_log_recs(
/* We were able to find more log data: add it to the
parsing buffer if parse_start_lsn is already non-zero */
if (recv_sys->len + 4 * OS_FILE_LOG_BLOCK_SIZE
>= RECV_PARSING_BUF_SIZE) {
fprintf(stderr,
"InnoDB: Error: log parsing buffer overflow. Recovery may have failed!\n");
finished = TRUE;
}
more_data = recv_sys_add_to_parsing_buf(log_block,
scanned_lsn);
recv_sys->scanned_lsn = scanned_lsn;
@ -1863,25 +2130,36 @@ recv_scan_log_recs(
*group_scanned_lsn = scanned_lsn;
if (more_data) {
if (recv_needed_recovery || recv_is_from_backup) {
recv_scan_print_counter++;
if (recv_scan_print_counter < 10
|| (recv_scan_print_counter % 10 == 0)) {
if (finished || (recv_scan_print_counter % 80 == 0)) {
fprintf(stderr,
"InnoDB: Doing recovery: scanned up to log sequence number %lu %lu\n",
ut_dulint_get_high(*group_scanned_lsn),
ut_dulint_get_low(*group_scanned_lsn));
if (recv_scan_print_counter == 10) {
fprintf(stderr,
"InnoDB: After this prints a line for every 10th scan sweep:\n");
}
}
}
if (more_data) {
/* Try to parse more log records */
recv_parse_log_recs(store_to_hash);
if (store_to_hash && mem_heap_get_size(recv_sys->heap)
> available_memory
&& apply_automatically) {
/* Hash table of log records has grown too big:
empty it; FALSE means no ibuf operations
allowed, as we cannot add new records to the
log yet: they would be produced by ibuf
operations */
recv_apply_hashed_log_recs(FALSE);
}
if (recv_sys->recovered_offset > RECV_PARSING_BUF_SIZE / 4) {
/* Move parsing buffer data to the buffer start */
@ -1918,10 +2196,12 @@ recv_group_scan_log_recs(
log_group_read_log_seg(LOG_RECOVER, log_sys->buf,
group, start_lsn, end_lsn);
finished = recv_scan_log_recs(TRUE, log_sys->buf,
RECV_SCAN_SIZE, start_lsn,
contiguous_lsn,
group_scanned_lsn);
finished = recv_scan_log_recs(TRUE,
buf_pool_get_curr_size()
- RECV_POOL_N_FREE_BLOCKS * UNIV_PAGE_SIZE,
TRUE, log_sys->buf,
RECV_SCAN_SIZE, start_lsn,
contiguous_lsn, group_scanned_lsn);
start_lsn = end_lsn;
}
@ -1969,7 +2249,7 @@ recv_recovery_from_checkpoint_start(
if (type == LOG_CHECKPOINT) {
recv_sys_create();
recv_sys_init();
recv_sys_init(FALSE, buf_pool_get_curr_size());
}
if (srv_force_recovery >= SRV_FORCE_NO_LOG_REDO) {
@ -2280,6 +2560,84 @@ recv_reset_logs(
mutex_enter(&(log_sys->mutex));
}
/**********************************************************
Creates new log files after a backup has been restored. */
void
recv_reset_log_files_for_backup(
/*============================*/
char* log_dir, /* in: log file directory path */
ulint n_log_files, /* in: number of log files */
ulint log_file_size, /* in: log file size */
dulint lsn) /* in: new start lsn, must be divisible by
OS_FILE_LOG_BLOCK_SIZE */
{
os_file_t log_file;
ibool success;
byte* buf;
ulint i;
char name[5000];
buf = ut_malloc(LOG_FILE_HDR_SIZE + OS_FILE_LOG_BLOCK_SIZE);
for (i = 0; i < n_log_files; i++) {
sprintf(name, "%sib_logfile%lu", log_dir, i);
log_file = os_file_create_simple(name, OS_FILE_CREATE,
OS_FILE_READ_WRITE, &success);
if (!success) {
printf(
"InnoDB: Cannot create %s. Check that the file does not exist yet.\n", name);
exit(1);
}
printf(
"Setting log file size to %lu %lu\n", ut_get_high32(log_file_size),
log_file_size & 0xFFFFFFFF);
success = os_file_set_size(name, log_file,
log_file_size & 0xFFFFFFFF,
ut_get_high32(log_file_size));
if (!success) {
printf(
"InnoDB: Cannot set %s size to %lu %lu\n", name, ut_get_high32(log_file_size),
log_file_size & 0xFFFFFFFF);
exit(1);
}
os_file_flush(log_file);
os_file_close(log_file);
}
/* We pretend there is a checkpoint at lsn + LOG_BLOCK_HDR_SIZE */
log_reset_first_header_and_checkpoint(buf,
ut_dulint_add(lsn, LOG_BLOCK_HDR_SIZE));
log_block_init(buf + LOG_FILE_HDR_SIZE, lsn);
log_block_set_first_rec_group(buf + LOG_FILE_HDR_SIZE,
LOG_BLOCK_HDR_SIZE);
sprintf(name, "%sib_logfile%lu", log_dir, 0);
log_file = os_file_create_simple(name, OS_FILE_OPEN,
OS_FILE_READ_WRITE, &success);
if (!success) {
printf("InnoDB: Cannot open %s.\n", name);
exit(1);
}
os_file_write(name, log_file, buf, 0, 0,
LOG_FILE_HDR_SIZE + OS_FILE_LOG_BLOCK_SIZE);
os_file_flush(log_file);
os_file_close(log_file);
ut_free(buf);
}
/**********************************************************
Reads from the archive of a log group and performs recovery. */
static
@ -2296,13 +2654,13 @@ log_group_recover_from_archive_file(
dulint dummy_lsn;
dulint scanned_lsn;
ulint len;
char name[10000];
ibool ret;
byte* buf;
ulint read_offset;
ulint file_size;
ulint file_size_high;
int input_char;
char name[10000];
try_open_again:
buf = log_sys->buf;
@ -2438,9 +2796,11 @@ ask_again:
group->archive_space_id, read_offset / UNIV_PAGE_SIZE,
read_offset % UNIV_PAGE_SIZE, len, buf, NULL);
ret = recv_scan_log_recs(TRUE, buf, len, start_lsn,
&dummy_lsn, &scanned_lsn);
ret = recv_scan_log_recs(TRUE,
buf_pool_get_curr_size() -
RECV_POOL_N_FREE_BLOCKS * UNIV_PAGE_SIZE,
TRUE, buf, len, start_lsn,
&dummy_lsn, &scanned_lsn);
if (ut_dulint_cmp(scanned_lsn, file_end_lsn) == 0) {
@ -2485,7 +2845,7 @@ recv_recovery_from_archive_start(
ulint err;
recv_sys_create();
recv_sys_init();
recv_sys_init(FALSE, buf_pool_get_curr_size());
sync_order_checks_on = TRUE;

5
innobase/mem/mem0mem.c
View File

@ -234,7 +234,8 @@ mem_heap_add_block(
new_size = 2 * mem_block_get_len(block);
if (heap->type != MEM_HEAP_DYNAMIC) {
ut_ad(n <= MEM_MAX_ALLOC_IN_BUF);
/* From the buffer pool we allocate buffer frames */
ut_a(n <= MEM_MAX_ALLOC_IN_BUF);
if (new_size > MEM_MAX_ALLOC_IN_BUF) {
new_size = MEM_MAX_ALLOC_IN_BUF;
@ -249,7 +250,7 @@ mem_heap_add_block(
}
new_block = mem_heap_create_block(heap, new_size, NULL, heap->type,
heap->file_name, heap->line);
heap->file_name, heap->line);
if (new_block == NULL) {
return(NULL);

297
innobase/os/os0file.c
View File

@ -10,17 +10,22 @@ Created 10/21/1995 Heikki Tuuri
#include "os0sync.h"
#include "ut0mem.h"
#include "srv0srv.h"
#include "trx0sys.h"
#include "fil0fil.h"
#undef HAVE_FDATASYNC
#undef UNIV_NON_BUFFERED_IO
#ifdef POSIX_ASYNC_IO
/* We assume in this case that the OS has standard Posix aio (at least SunOS
2.6, HP-UX 11i and AIX 4.3 have) */
#endif
/* If the following is set to TRUE, we do not call os_file_flush in every
os_file_write. We can set this TRUE if the doublewrite buffer is used. */
ibool os_do_not_call_flush_at_each_write = FALSE;
/* We use these mutexes to protect lseek + file i/o operation, if the
OS does not provide an atomic pread or pwrite, or similar */
#define OS_FILE_N_SEEK_MUTEXES 16
@ -118,6 +123,9 @@ ulint os_n_file_writes_old = 0;
ulint os_n_fsyncs_old = 0;
time_t os_last_printout;
ibool os_has_said_disk_full = FALSE;
/***************************************************************************
Gets the operating system version. Currently works only on Windows. */
@ -167,27 +175,28 @@ os_file_get_last_error(void)
err = (ulint) GetLastError();
if (err != ERROR_FILE_EXISTS) {
fprintf(stderr,
"InnoDB: Operating system error number %li in a file operation.\n"
if (err != ERROR_FILE_EXISTS && err != ERROR_DISK_FULL) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Operating system error number %li in a file operation.\n"
"InnoDB: See http://www.innodb.com/ibman.html for installation help.\n",
(long) err);
if (err == ERROR_PATH_NOT_FOUND) {
if (err == ERROR_PATH_NOT_FOUND) {
fprintf(stderr,
"InnoDB: The error means the system cannot find the path specified.\n"
"InnoDB: In installation you must create directories yourself, InnoDB\n"
"InnoDB: does not create them.\n");
} else if (err == ERROR_ACCESS_DENIED) {
} else if (err == ERROR_ACCESS_DENIED) {
fprintf(stderr,
"InnoDB: The error means mysqld does not have the access rights to\n"
"InnoDB: the directory. It may also be you have created a subdirectory\n"
"InnoDB: of the same name as a data file.\n");
} else {
} else {
fprintf(stderr,
"InnoDB: Look from section 13.2 at http://www.innodb.com/ibman.html\n"
"InnoDB: what the error number means.\n");
}
}
}
if (err == ERROR_FILE_NOT_FOUND) {
@ -202,26 +211,28 @@ os_file_get_last_error(void)
#else
err = (ulint) errno;
if (err != EEXIST) {
fprintf(stderr,
"InnoDB: Operating system error number %li in a file operation.\n"
if (err != EEXIST && err != ENOSPC ) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Operating system error number %li in a file operation.\n"
"InnoDB: See http://www.innodb.com/ibman.html for installation help.\n",
(long) err);
if (err == ENOENT) {
if (err == ENOENT) {
fprintf(stderr,
"InnoDB: The error means the system cannot find the path specified.\n"
"InnoDB: In installation you must create directories yourself, InnoDB\n"
"InnoDB: does not create them.\n");
} else if (err == EACCES) {
} else if (err == EACCES) {
fprintf(stderr,
"InnoDB: The error means mysqld does not have the access rights to\n"
"InnoDB: the directory.\n");
} else {
} else {
fprintf(stderr,
"InnoDB: Look from section 13.2 at http://www.innodb.com/ibman.html\n"
"InnoDB: what the error number means or use the perror program of MySQL.\n");
}
}
}
if (err == ENOSPC ) {
@ -259,18 +270,26 @@ os_file_handle_error(
err = os_file_get_last_error();
if (err == OS_FILE_DISK_FULL) {
fprintf(stderr, "\n");
if (name) {
fprintf(stderr,
"InnoDB: Encountered a problem with file %s.\n",
name);
}
fprintf(stderr,
"InnoDB: Cannot continue operation.\n"
"InnoDB: Disk is full. Try to clean the disk to free space.\n"
"InnoDB: Delete a possible created file and restart.\n");
/* We only print a warning about disk full once */
exit(1);
if (os_has_said_disk_full) {
return(FALSE);
}
if (name) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Encountered a problem with file %s\n", name);
}
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Disk is full. Try to clean the disk to free space.\n");
os_has_said_disk_full = TRUE;
return(FALSE);
} else if (err == OS_FILE_AIO_RESOURCES_RESERVED) {
return(TRUE);
@ -290,6 +309,130 @@ os_file_handle_error(
return(FALSE);
}
/********************************************************************
Creates the seek mutexes used in positioned reads and writes. */
void
os_io_init_simple(void)
/*===================*/
{
ulint i;
for (i = 0; i < OS_FILE_N_SEEK_MUTEXES; i++) {
os_file_seek_mutexes[i] = os_mutex_create(NULL);
}
}
/********************************************************************
A simple function to open or create a file. */
os_file_t
os_file_create_simple(
/*==================*/
/* out, own: handle to the file, not defined if error,
error number can be retrieved with os_get_last_error */
char* name, /* in: name of the file or path as a null-terminated
string */
ulint create_mode,/* in: OS_FILE_OPEN if an existing file is opened
(if does not exist, error), or OS_FILE_CREATE if a new
file is created (if exists, error) */
ulint access_type,/* in: OS_FILE_READ_ONLY or OS_FILE_READ_WRITE */
ibool* success)/* out: TRUE if succeed, FALSE if error */
{
#ifdef __WIN__
os_file_t file;
DWORD create_flag;
DWORD access;
DWORD attributes = 0;
ibool retry;
try_again:
ut_a(name);
if (create_mode == OS_FILE_OPEN) {
create_flag = OPEN_EXISTING;
} else if (create_mode == OS_FILE_CREATE) {
create_flag = CREATE_NEW;
} else {
create_flag = 0;
ut_error;
}
if (access_type == OS_FILE_READ_ONLY) {
access = GENERIC_READ;
} else if (access_type == OS_FILE_READ_WRITE) {
access = GENERIC_READ | GENERIC_WRITE;
} else {
access = 0;
ut_error;
}
file = CreateFile(name,
access,
FILE_SHARE_READ | FILE_SHARE_WRITE,
/* file can be read and written
also by other processes */
NULL, /* default security attributes */
create_flag,
attributes,
NULL); /* no template file */
if (file == INVALID_HANDLE_VALUE) {
*success = FALSE;
retry = os_file_handle_error(file, name);
if (retry) {
goto try_again;
}
} else {
*success = TRUE;
}
return(file);
#else
os_file_t file;
int create_flag;
ibool retry;
try_again:
ut_a(name);
if (create_mode == OS_FILE_OPEN) {
if (access_type == OS_FILE_READ_ONLY) {
create_flag = O_RDONLY;
} else {
create_flag = O_RDWR;
}
} else if (create_mode == OS_FILE_CREATE) {
create_flag = O_RDWR | O_CREAT | O_EXCL;
} else {
create_flag = 0;
ut_error;
}
if (create_mode == OS_FILE_CREATE) {
file = open(name, create_flag, S_IRUSR | S_IWUSR | S_IRGRP
| S_IWGRP | S_IROTH | S_IWOTH);
} else {
file = open(name, create_flag);
}
if (file == -1) {
*success = FALSE;
retry = os_file_handle_error(file, name);
if (retry) {
goto try_again;
}
} else {
*success = TRUE;
}
return(file);
#endif
}
/********************************************************************
Opens an existing file or creates a new. */
@ -355,8 +498,9 @@ try_again:
file = CreateFile(name,
GENERIC_READ | GENERIC_WRITE, /* read and write
access */
FILE_SHARE_READ,/* file can be read by other
processes */
FILE_SHARE_READ | FILE_SHARE_WRITE,
/* file can be read and written
also by other processes */
NULL, /* default security attributes */
create_flag,
attributes,
@ -494,6 +638,11 @@ os_file_get_size(
offs = lseek(file, 0, SEEK_END);
if (offs == ((off_t)-1)) {
return(FALSE);
}
if (sizeof(off_t) > 4) {
*size = (ulint)(offs & 0xFFFFFFFF);
*size_high = (ulint)(offs >> 32);
@ -524,13 +673,11 @@ os_file_set_size(
ib_longlong low;
ulint n_bytes;
ibool ret;
ibool retry;
byte* buf;
ulint i;
ut_a(size == (size & 0xFFFFFFFF));
try_again:
/* We use a very big 8 MB buffer in writing because Linux may be
extremely slow in fsync on 1 MB writes */
@ -571,14 +718,6 @@ try_again:
}
error_handling:
retry = os_file_handle_error(file, name);
if (retry) {
goto try_again;
}
ut_error;
return(FALSE);
}
@ -725,8 +864,7 @@ os_file_pwrite(
64-bit address */
if (sizeof(off_t) > 4) {
offs = (off_t)offset + (((off_t)offset_high) << 32);
offs = (off_t)offset + (((off_t)offset_high) << 32);
} else {
offs = (off_t)offset;
@ -743,7 +881,7 @@ os_file_pwrite(
if (srv_unix_file_flush_method != SRV_UNIX_LITTLESYNC
&& srv_unix_file_flush_method != SRV_UNIX_NOSYNC
&& !trx_doublewrite) {
&& !os_do_not_call_flush_at_each_write) {
/* Always do fsync to reduce the probability that when
the OS crashes, a database page is only partially
@ -774,7 +912,7 @@ os_file_pwrite(
if (srv_unix_file_flush_method != SRV_UNIX_LITTLESYNC
&& srv_unix_file_flush_method != SRV_UNIX_NOSYNC
&& !trx_doublewrite) {
&& !os_do_not_call_flush_at_each_write) {
/* Always do fsync to reduce the probability that when
the OS crashes, a database page is only partially
@ -899,13 +1037,12 @@ os_file_write(
DWORD ret2;
DWORD low;
DWORD high;
ibool retry;
ulint i;
ut_a((offset & 0xFFFFFFFF) == offset);
os_n_file_writes++;
try_again:
ut_ad(file);
ut_ad(buf);
ut_ad(n > 0);
@ -924,7 +1061,15 @@ try_again:
os_mutex_exit(os_file_seek_mutexes[i]);
goto error_handling;
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Error: File pointer positioning to file %s failed at\n"
"InnoDB: offset %lu %lu. Operating system error number %lu.\n",
name, offset_high, offset,
(ulint)GetLastError());
return(FALSE);
}
ret = WriteFile(file, buf, n, &len, NULL);
@ -932,38 +1077,61 @@ try_again:
/* Always do fsync to reduce the probability that when the OS crashes,
a database page is only partially physically written to disk. */
if (!trx_doublewrite) {
if (!os_do_not_call_flush_at_each_write) {
ut_a(TRUE == os_file_flush(file));
}
os_mutex_exit(os_file_seek_mutexes[i]);
if (ret && len == n) {
return(TRUE);
}
if (!os_has_said_disk_full) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Error: Write to file %s failed at offset %lu %lu.\n"
"InnoDB: %lu bytes should have been written, only %lu were written.\n"
"InnoDB: Operating system error number %lu.\n"
"InnoDB: Check that your OS and file system support files of this size.\n"
"InnoDB: Check also the disk is not full or a disk quota exceeded.\n",
name, offset_high, offset, n, len,
(ulint)GetLastError());
os_has_said_disk_full = TRUE;
}
return(FALSE);
#else
ibool retry;
ssize_t ret;
try_again:
ret = os_file_pwrite(file, buf, n, offset, offset_high);
if ((ulint)ret == n) {
return(TRUE);
}
#endif
#ifdef __WIN__
error_handling:
#endif
retry = os_file_handle_error(file, name);
if (retry) {
goto try_again;
if (!os_has_said_disk_full) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Error: Write to file %s failed at offset %lu %lu.\n"
"InnoDB: %lu bytes should have been written, only %lu were written.\n"
"InnoDB: Operating system error number %lu.\n"
"InnoDB: Check that your OS and file system support files of this size.\n"
"InnoDB: Check also the disk is not full or a disk quota exceeded.\n",
name, offset_high, offset, n, ret, (ulint)errno);
os_has_said_disk_full = TRUE;
}
ut_error;
return(FALSE);
#endif
}
/********************************************************************
@ -1034,7 +1202,8 @@ os_aio_array_create(
}
/****************************************************************************
Initializes the asynchronous io system. Creates separate aio array for
Initializes the asynchronous io system. Calls also os_io_init_simple.
Creates a separate aio array for
non-ibuf read and write, a third aio array for the ibuf i/o, with just one
segment, two aio arrays for log reads and writes with one segment, and a
synchronous aio array of the specified size. The combined number of segments
@ -1061,6 +1230,8 @@ os_aio_init(
ut_ad(n % n_segments == 0);
ut_ad(n_segments >= 4);
os_io_init_simple();
n_per_seg = n / n_segments;
n_write_segs = (n_segments - 2) / 2;
n_read_segs = n_segments - 2 - n_write_segs;
@ -1081,10 +1252,6 @@ os_aio_init(
os_aio_validate();
for (i = 0; i < OS_FILE_N_SEEK_MUTEXES; i++) {
os_file_seek_mutexes[i] = os_mutex_create(NULL);
}
os_aio_segment_wait_events = ut_malloc(n_segments * sizeof(void*));
for (i = 0; i < n_segments; i++) {
@ -1742,7 +1909,8 @@ os_aio_windows_handle(
if (ret && len == slot->len) {
ret_val = TRUE;
if (slot->type == OS_FILE_WRITE && !trx_doublewrite) {
if (slot->type == OS_FILE_WRITE
&& !os_do_not_call_flush_at_each_write) {
ut_a(TRUE == os_file_flush(slot->file));
}
} else {
@ -1827,7 +1995,8 @@ os_aio_posix_handle(
*message1 = slot->message1;
*message2 = slot->message2;
if (slot->type == OS_FILE_WRITE && !trx_doublewrite) {
if (slot->type == OS_FILE_WRITE
&& !os_do_not_call_flush_at_each_write) {
ut_a(TRUE == os_file_flush(slot->file));
}

3
innobase/rem/rem0cmp.c
View File

@ -55,7 +55,8 @@ cmp_debug_dtuple_rec_with_match(
contains the value for current comparison */
/*****************************************************************
This function is used to compare two data fields for which the data type
is such that we must use MySQL code to compare them. */
is such that we must use MySQL code to compare them. The prototype here
must be a copy of the the one in ha_innobase.cc! */
int
innobase_mysql_cmp(

31
innobase/row/row0ins.c
View File

@ -391,7 +391,7 @@ row_ins_check_foreign_constraint(
/* out: DB_SUCCESS, DB_LOCK_WAIT,
DB_NO_REFERENCED_ROW,
or DB_ROW_IS_REFERENCED */
ibool check_ref,/* in: TRUE If we want to check that
ibool check_ref,/* in: TRUE if we want to check that
the referenced table is ok, FALSE if we
want to to check the foreign key table */
dict_foreign_t* foreign,/* in: foreign constraint; NOTE that the
@ -411,10 +411,23 @@ row_ins_check_foreign_constraint(
ibool moved;
int cmp;
ulint err;
ulint i;
mtr_t mtr;
ut_ad(rw_lock_own(&dict_foreign_key_check_lock, RW_LOCK_SHARED));
/* If any of the foreign key fields in entry is SQL NULL, we
suppress the foreign key check: this is compatible with Oracle,
for example */
for (i = 0; i < foreign->n_fields; i++) {
if (UNIV_SQL_NULL == dfield_get_len(
dtuple_get_nth_field(entry, i))) {
return(DB_SUCCESS);
}
}
if (check_ref) {
check_table = foreign->referenced_table;
check_index = foreign->referenced_index;
@ -591,6 +604,8 @@ row_ins_scan_sec_index_for_duplicate(
dtuple_t* entry, /* in: index entry */
que_thr_t* thr) /* in: query thread */
{
ulint n_unique;
ulint i;
int cmp;
ulint n_fields_cmp;
rec_t* rec;
@ -599,6 +614,20 @@ row_ins_scan_sec_index_for_duplicate(
ibool moved;
mtr_t mtr;
n_unique = dict_index_get_n_unique(index);
/* If the secondary index is unique, but one of the fields in the
n_unique first fields is NULL, a unique key violation cannot occur,
since we define NULL != NULL in this case */
for (i = 0; i < n_unique; i++) {
if (UNIV_SQL_NULL == dfield_get_len(
dtuple_get_nth_field(entry, i))) {
return(DB_SUCCESS);
}
}
mtr_start(&mtr);
/* Store old value on n_fields_cmp */

80
innobase/row/row0mysql.c
View File

@ -1881,6 +1881,28 @@ loop:
return(err);
}
/*************************************************************************
Checks if a table name contains the string "/#sql" which denotes temporary
tables in MySQL. */
static
ibool
row_is_mysql_tmp_table_name(
/*========================*/
/* out: TRUE if temporary table */
char* name) /* in: table name in the form 'database/tablename' */
{
ulint i;
for (i = 0; i <= ut_strlen(name) - 5; i++) {
if (ut_memcmp(name + i, "/#sql", 5) == 0) {
return(TRUE);
}
}
return(FALSE);
}
/*************************************************************************
Renames a table for MySQL. */
@ -1944,16 +1966,27 @@ row_rename_table_for_mysql(
str2 =
"';\nold_table_name := '";
str3 =
"';\n"
"UPDATE SYS_TABLES SET NAME = new_table_name\n"
"WHERE NAME = old_table_name;\n"
"UPDATE SYS_FOREIGN SET FOR_NAME = new_table_name\n"
"WHERE FOR_NAME = old_table_name;\n"
"UPDATE SYS_FOREIGN SET REF_NAME = new_table_name\n"
"WHERE REF_NAME = old_table_name;\n"
"COMMIT WORK;\n"
"END;\n";
if (row_is_mysql_tmp_table_name(new_name)) {
/* We want to preserve the original foreign key
constraint definitions despite the name change */
str3 =
"';\n"
"UPDATE SYS_TABLES SET NAME = new_table_name\n"
"WHERE NAME = old_table_name;\n"
"END;\n";
} else {
str3 =
"';\n"
"UPDATE SYS_TABLES SET NAME = new_table_name\n"
"WHERE NAME = old_table_name;\n"
"UPDATE SYS_FOREIGN SET FOR_NAME = new_table_name\n"
"WHERE FOR_NAME = old_table_name;\n"
"UPDATE SYS_FOREIGN SET REF_NAME = new_table_name\n"
"WHERE REF_NAME = old_table_name;\n"
"END;\n";
}
len = ut_strlen(str1);
@ -2028,7 +2061,32 @@ row_rename_table_for_mysql(
trx_general_rollback_for_mysql(trx, FALSE, NULL);
trx->error_state = DB_SUCCESS;
} else {
ut_a(dict_table_rename_in_cache(table, new_name));
ut_a(dict_table_rename_in_cache(table, new_name,
!row_is_mysql_tmp_table_name(new_name)));
if (row_is_mysql_tmp_table_name(old_name)) {
err = dict_load_foreigns(new_name);
if (err != DB_SUCCESS) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Error: in ALTER TABLE table %s\n"
"InnoDB: has or is referenced in foreign key constraints\n"
"InnoDB: which are not compatible with the new table definition.\n",
new_name);
ut_a(dict_table_rename_in_cache(table,
old_name, FALSE));
trx->error_state = DB_SUCCESS;
trx_general_rollback_for_mysql(trx, FALSE,
NULL);
trx->error_state = DB_SUCCESS;
}
}
}
funct_exit:
mutex_exit(&(dict_sys->mutex));

26
innobase/row/row0sel.c
View File

@ -2233,7 +2233,7 @@ row_sel_get_clust_rec_for_mysql(
(or old_vers) is not rec; in that case we must ignore
such row because in our snapshot rec would not have existed.
Remember that from rec we cannot see directly which transaction
id corrsponds to it: we have to go to the clustered index
id corresponds to it: we have to go to the clustered index
record. A query where we want to fetch all rows where
the secondary index value is in some interval would return
a wrong result if we would not drop rows which we come to
@ -2244,6 +2244,12 @@ row_sel_get_clust_rec_for_mysql(
&& !row_sel_sec_rec_is_for_clust_rec(rec, sec_index,
clust_rec, clust_index)) {
clust_rec = NULL;
} else {
#ifdef UNIV_SEARCH_DEBUG
ut_a(clust_rec == NULL ||
row_sel_sec_rec_is_for_clust_rec(rec, sec_index,
clust_rec, clust_index));
#endif
}
}
@ -2399,7 +2405,12 @@ row_sel_try_search_shortcut_for_mysql(
btr_pcur_open_with_no_init(index, search_tuple, PAGE_CUR_GE,
BTR_SEARCH_LEAF, pcur,
RW_S_LATCH, mtr);
#ifndef UNIV_SEARCH_DEBUG
RW_S_LATCH,
#else
0,
#endif
mtr);
rec = btr_pcur_get_rec(pcur);
if (!page_rec_is_user_rec(rec)) {
@ -2623,15 +2634,18 @@ row_search_for_mysql(
goto no_shortcut;
}
#ifndef UNIV_SEARCH_DEBUG
if (!trx->has_search_latch) {
rw_lock_s_lock(&btr_search_latch);
trx->has_search_latch = TRUE;
}
#endif
shortcut = row_sel_try_search_shortcut_for_mysql(&rec,
prebuilt, &mtr);
if (shortcut == SEL_FOUND) {
#ifdef UNIV_SEARCH_DEBUG
ut_a(0 == cmp_dtuple_rec(search_tuple, rec));
#endif
row_sel_store_mysql_rec(buf, prebuilt, rec);
mtr_commit(&mtr);
@ -2793,7 +2807,9 @@ rec_loop:
/* The record matches enough */
ut_ad(mode == PAGE_CUR_GE);
#ifdef UNIV_SEARCH_DEBUG
ut_a(0 == cmp_dtuple_rec(search_tuple, rec));
#endif
} else if (match_mode == ROW_SEL_EXACT) {
/* Test if the index record matches completely to search_tuple
in prebuilt: if not, then we return with DB_RECORD_NOT_FOUND */

2
innobase/row/row0upd.c
View File

@ -142,7 +142,7 @@ try_again:
/*************************************************************************
Checks if possible foreign key constraints hold after a delete of the record
under pcur. NOTE that this function will temporarily commit mtr and lose
under pcur. NOTE that this function will temporarily commit mtr and lose the
pcur position! */
static
ulint

34
innobase/srv/srv0srv.c
View File

@ -69,13 +69,19 @@ char* srv_main_thread_op_info = "";
names, where the file name itself may also contain a path */
char* srv_data_home = NULL;
char* srv_logs_home = NULL;
char* srv_arch_dir = NULL;
ulint srv_n_data_files = 0;
char** srv_data_file_names = NULL;
ulint* srv_data_file_sizes = NULL; /* size in database pages */
ibool srv_auto_extend_last_data_file = FALSE; /* if TRUE, then we
auto-extend the last data
file */
ulint srv_last_file_size_max = 0; /* if != 0, this tells
the max size auto-extending
may increase the last data
file size */
ulint* srv_data_file_is_raw_partition = NULL;
/* If the following is TRUE we do not allow inserts etc. This protects
@ -1596,7 +1602,7 @@ srv_read_initfile(
/*************************************************************************
Initializes the server. */
static
void
srv_init(void)
/*==========*/
@ -1664,7 +1670,7 @@ srv_init(void)
/*************************************************************************
Initializes the synchronization primitives, memory system, and the thread
local storage. */
static
void
srv_general_init(void)
/*==================*/
@ -1686,6 +1692,7 @@ srv_conc_enter_innodb(
trx_t* trx) /* in: transaction object associated with the
thread */
{
ibool has_slept = FALSE;
srv_conc_slot_t* slot;
ulint i;
@ -1703,7 +1710,7 @@ srv_conc_enter_innodb(
return;
}
retry:
os_fast_mutex_lock(&srv_conc_mutex);
if (srv_conc_n_threads < (lint)srv_thread_concurrency) {
@ -1717,6 +1724,22 @@ srv_conc_enter_innodb(
return;
}
/* If the transaction is not holding resources, let it sleep
for 100 milliseconds, and try again then */
if (!has_slept && !trx->has_search_latch
&& NULL == UT_LIST_GET_FIRST(trx->trx_locks)) {
has_slept = TRUE; /* We let is sleep only once to avoid
starvation */
os_fast_mutex_unlock(&srv_conc_mutex);
os_thread_sleep(100000);
goto retry;
}
/* Too many threads inside: put the current thread to a queue */
for (i = 0; i < OS_THREAD_MAX_N; i++) {
@ -1908,6 +1931,9 @@ srv_normalize_init_values(void)
* ((1024 * 1024) / UNIV_PAGE_SIZE);
}
srv_last_file_size_max = srv_last_file_size_max
* ((1024 * 1024) / UNIV_PAGE_SIZE);
srv_log_file_size = srv_log_file_size / UNIV_PAGE_SIZE;
srv_log_buffer_size = srv_log_buffer_size / UNIV_PAGE_SIZE;

370
innobase/srv/srv0start.c
View File

@ -84,6 +84,308 @@ we may get an assertion failure in os0file.c */
#define SRV_LOG_SPACE_FIRST_ID 1000000000
/*************************************************************************
Reads the data files and their sizes from a character string given in
the .cnf file. */
ibool
srv_parse_data_file_paths_and_sizes(
/*================================*/
/* out: TRUE if ok, FALSE if parsing
error */
char* str, /* in: the data file path string */
char*** data_file_names, /* out, own: array of data file
names */
ulint** data_file_sizes, /* out, own: array of data file sizes
in megabytes */
ulint** data_file_is_raw_partition,/* out, own: array of flags
showing which data files are raw
partitions */
ulint* n_data_files, /* out: number of data files */
ibool* is_auto_extending, /* out: TRUE if the last data file is
auto-extending */
ulint* max_auto_extend_size) /* out: max auto extend size for the
last file if specified, 0 if not */
{
char* input_str;
char* endp;
char* path;
ulint size;
ulint i = 0;
*is_auto_extending = FALSE;
*max_auto_extend_size = 0;
input_str = str;
/* First calculate the number of data files and check syntax:
path:size[M | G];path:size[M | G]... . Note that a Windows path may
contain a drive name and a ':'. */
while (*str != '\0') {
path = str;
while ((*str != ':' && *str != '\0')
|| (*str == ':'
&& (*(str + 1) == '\\' || *(str + 1) == '/'))) {
str++;
}
if (*str == '\0') {
return(FALSE);
}
str++;
size = strtoul(str, &endp, 10);
str = endp;
if (*str != 'M' && *str != 'G') {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
if (strlen(str) >= ut_strlen(":autoextend")
&& 0 == ut_memcmp(str, ":autoextend",
ut_strlen(":autoextend"))) {
str += ut_strlen(":autoextend");
if (strlen(str) >= ut_strlen(":max:")
&& 0 == ut_memcmp(str, ":max:",
ut_strlen(":max:"))) {
str += ut_strlen(":max:");
size = strtoul(str, &endp, 10);
str = endp;
if (*str != 'M' && *str != 'G') {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
}
if (*str != '\0') {
return(FALSE);
}
}
if (strlen(str) >= 6
&& *str == 'n'
&& *(str + 1) == 'e'
&& *(str + 2) == 'w') {
str += 3;
}
if (strlen(str) >= 3
&& *str == 'r'
&& *(str + 1) == 'a'
&& *(str + 2) == 'w') {
str += 3;
}
if (size == 0) {
return(FALSE);
}
i++;
if (*str == ';') {
str++;
} else if (*str != '\0') {
return(FALSE);
}
}
*data_file_names = (char**)ut_malloc(i * sizeof(void*));
*data_file_sizes = (ulint*)ut_malloc(i * sizeof(ulint));
*data_file_is_raw_partition = (ulint*)ut_malloc(i * sizeof(ulint));
*n_data_files = i;
/* Then store the actual values to our arrays */
str = input_str;
i = 0;
while (*str != '\0') {
path = str;
/* Note that we must ignore the ':' in a Windows path */
while ((*str != ':' && *str != '\0')
|| (*str == ':'
&& (*(str + 1) == '\\' || *(str + 1) == '/'))) {
str++;
}
if (*str == ':') {
/* Make path a null-terminated string */
*str = '\0';
str++;
}
size = strtoul(str, &endp, 10);
str = endp;
if ((*str != 'M') && (*str != 'G')) {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
(*data_file_names)[i] = path;
(*data_file_sizes)[i] = size;
if (strlen(str) >= ut_strlen(":autoextend")
&& 0 == ut_memcmp(str, ":autoextend",
ut_strlen(":autoextend"))) {
*is_auto_extending = TRUE;
str += ut_strlen(":autoextend");
if (strlen(str) >= ut_strlen(":max:")
&& 0 == ut_memcmp(str, ":max:",
ut_strlen(":max:"))) {
str += ut_strlen(":max:");
size = strtoul(str, &endp, 10);
str = endp;
if (*str != 'M' && *str != 'G') {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
*max_auto_extend_size = size;
}
if (*str != '\0') {
return(FALSE);
}
}
(*data_file_is_raw_partition)[i] = 0;
if (strlen(str) >= 6
&& *str == 'n'
&& *(str + 1) == 'e'
&& *(str + 2) == 'w') {
str += 3;
(*data_file_is_raw_partition)[i] = SRV_NEW_RAW;
}
if (strlen(str) >= 3
&& *str == 'r'
&& *(str + 1) == 'a'
&& *(str + 2) == 'w') {
str += 3;
if ((*data_file_is_raw_partition)[i] == 0) {
(*data_file_is_raw_partition)[i] = SRV_OLD_RAW;
}
}
i++;
if (*str == ';') {
str++;
}
}
return(TRUE);
}
/*************************************************************************
Reads log group home directories from a character string given in
the .cnf file. */
ibool
srv_parse_log_group_home_dirs(
/*==========================*/
/* out: TRUE if ok, FALSE if parsing
error */
char* str, /* in: character string */
char*** log_group_home_dirs) /* out, own: log group home dirs */
{
char* input_str;
char* path;
ulint i = 0;
input_str = str;
/* First calculate the number of directories and check syntax:
path;path;... */
while (*str != '\0') {
path = str;
while (*str != ';' && *str != '\0') {
str++;
}
i++;
if (*str == ';') {
str++;
} else if (*str != '\0') {
return(FALSE);
}
}
*log_group_home_dirs = (char**) ut_malloc(i * sizeof(void*));
/* Then store the actual values to our array */
str = input_str;
i = 0;
while (*str != '\0') {
path = str;
while (*str != ';' && *str != '\0') {
str++;
}
if (*str == ';') {
*str = '\0';
str++;
}
(*log_group_home_dirs)[i] = path;
i++;
}
return(TRUE);
}
/************************************************************************
I/o-handler thread function. */
static
@ -127,7 +429,7 @@ io_handler_thread(
/*************************************************************************
Normalizes a directory path for Windows: converts slashes to backslashes. */
static
void
srv_normalize_path_for_win(
/*=======================*/
@ -148,7 +450,7 @@ srv_normalize_path_for_win(
/*************************************************************************
Adds a slash or a backslash to the end of a string if it is missing
and the string is not empty. */
static
char*
srv_add_path_separator_if_needed(
/*=============================*/
@ -354,6 +656,7 @@ open_or_create_data_files(
ibool one_created = FALSE;
ulint size;
ulint size_high;
ulint rounded_size_pages;
char name[10000];
if (srv_n_data_files >= 1000) {
@ -433,17 +736,35 @@ open_or_create_data_files(
ret = os_file_get_size(files[i], &size,
&size_high);
ut_a(ret);
/* Round size downward to megabytes */
/* File sizes in srv_... are given in
database pages */
rounded_size_pages = (size / (1024 * 1024)
+ 4096 * size_high)
<< (20 - UNIV_PAGE_SIZE_SHIFT);
if (size != srv_calc_low32(
srv_data_file_sizes[i])
|| size_high != srv_calc_high32(
srv_data_file_sizes[i])) {
if (i == srv_n_data_files - 1
&& srv_auto_extend_last_data_file) {
if (srv_data_file_sizes[i] >
rounded_size_pages
|| (srv_last_file_size_max > 0
&& srv_last_file_size_max <
rounded_size_pages)) {
fprintf(stderr,
"InnoDB: Error: data file %s is of a different size\n"
"InnoDB: than specified in the .cnf file!\n", name);
}
srv_data_file_sizes[i] =
rounded_size_pages;
}
if (rounded_size_pages
!= srv_data_file_sizes[i]) {
fprintf(stderr,
"InnoDB: Error: data file %s is of different size\n"
"InnoDB: Error: data file %s is of a different size\n"
"InnoDB: than specified in the .cnf file!\n", name);
return(DB_ERROR);
@ -477,7 +798,7 @@ open_or_create_data_files(
>> (20 - UNIV_PAGE_SIZE_SHIFT)));
fprintf(stderr,
"InnoDB: Database physically writes the file full: wait...\n");
"InnoDB: Database physically writes the file full: wait...\n");
ret = os_file_set_size(name, files[i],
srv_calc_low32(srv_data_file_sizes[i]),
@ -675,6 +996,8 @@ innobase_start_or_create_for_mysql(void)
os_aio_use_native_aio = TRUE;
}
#endif
os_aio_use_native_aio = FALSE;
if (!os_aio_use_native_aio) {
os_aio_init(4 * SRV_N_PENDING_IOS_PER_THREAD
* srv_n_file_io_threads,
@ -721,12 +1044,10 @@ innobase_start_or_create_for_mysql(void)
return(DB_ERROR);
}
if (sizeof(ulint) == 4
&& srv_n_log_files * srv_log_file_size >= 262144) {
if (srv_n_log_files * srv_log_file_size >= 262144) {
fprintf(stderr,
"InnoDB: Error: combined size of log files must be < 4 GB\n"
"InnoDB: on 32-bit computers\n");
"InnoDB: Error: combined size of log files must be < 4 GB\n");
return(DB_ERROR);
}
@ -758,7 +1079,6 @@ innobase_start_or_create_for_mysql(void)
&max_flushed_lsn, &max_arch_log_no,
&sum_of_new_sizes);
if (err != DB_SUCCESS) {
fprintf(stderr, "InnoDB: Could not open data files\n");
return((int) err);
@ -797,9 +1117,9 @@ innobase_start_or_create_for_mysql(void)
|| (log_opened && log_created)) {
fprintf(stderr,
"InnoDB: Error: all log files must be created at the same time.\n"
"InnoDB: If you want bigger or smaller log files,\n"
"InnoDB: shut down the database and make sure there\n"
"InnoDB: were no errors in shutdown.\n"
"InnoDB: All log files must be created also in database creation.\n"
"InnoDB: If you want bigger or smaller log files, shut down the\n"
"InnoDB: database and make sure there were no errors in shutdown.\n"
"InnoDB: Then delete the existing log files. Edit the .cnf file\n"
"InnoDB: and start the database again.\n");
@ -835,9 +1155,7 @@ innobase_start_or_create_for_mysql(void)
mutex_enter(&(log_sys->mutex));
recv_reset_logs(ut_dulint_align_down(max_flushed_lsn,
OS_FILE_LOG_BLOCK_SIZE),
max_arch_log_no + 1, TRUE);
recv_reset_logs(max_flushed_lsn, max_arch_log_no + 1, TRUE);
mutex_exit(&(log_sys->mutex));
}
@ -877,6 +1195,10 @@ innobase_start_or_create_for_mysql(void)
srv_startup_is_before_trx_rollback_phase = FALSE;
/* Initialize the fsp free limit global variable in the log
system */
fsp_header_get_free_limit(0);
recv_recovery_from_archive_finish();
} else {
/* We always try to do a recovery, even if the database had
@ -893,6 +1215,7 @@ innobase_start_or_create_for_mysql(void)
/* Since ibuf init is in dict_boot, and ibuf is needed
in any disk i/o, first call dict_boot */
dict_boot();
trx_sys_init_at_db_start();
@ -900,6 +1223,11 @@ innobase_start_or_create_for_mysql(void)
trx_sys_init_at_db_start */
srv_startup_is_before_trx_rollback_phase = FALSE;
/* Initialize the fsp free limit global variable in the log
system */
fsp_header_get_free_limit(0);
recv_recovery_from_checkpoint_finish();
}

36
innobase/trx/trx0sys.c
View File

@ -20,11 +20,42 @@ Created 3/26/1996 Heikki Tuuri
#include "srv0srv.h"
#include "trx0purge.h"
#include "log0log.h"
#include "os0file.h"
/* The transaction system */
trx_sys_t* trx_sys = NULL;
trx_doublewrite_t* trx_doublewrite = NULL;
/********************************************************************
Determines if a page number is located inside the doublewrite buffer. */
ibool
trx_doublewrite_page_inside(
/*========================*/
/* out: TRUE if the location is inside
the two blocks of the doublewrite buffer */
ulint page_no) /* in: page number */
{
if (trx_doublewrite == NULL) {
return(FALSE);
}
if (page_no >= trx_doublewrite->block1
&& page_no < trx_doublewrite->block1
+ TRX_SYS_DOUBLEWRITE_BLOCK_SIZE) {
return(TRUE);
}
if (page_no >= trx_doublewrite->block2
&& page_no < trx_doublewrite->block2
+ TRX_SYS_DOUBLEWRITE_BLOCK_SIZE) {
return(TRUE);
}
return(FALSE);
}
/********************************************************************
Creates or initialializes the doublewrite buffer at a database start. */
static
@ -36,6 +67,11 @@ trx_doublewrite_init(
{
trx_doublewrite = mem_alloc(sizeof(trx_doublewrite_t));
/* When we have the doublewrite buffer in use, we do not need to
call os_file_flush (Unix fsync) after every write. */
os_do_not_call_flush_at_each_write = TRUE;
mutex_create(&(trx_doublewrite->mutex));
mutex_set_level(&(trx_doublewrite->mutex), SYNC_DOUBLEWRITE);

1
innobase/ut/ut0mem.c
View File

@ -121,6 +121,7 @@ ut_malloc(
{
return(ut_malloc_low(n, TRUE));
}
/**************************************************************************
Frees a memory block allocated with ut_malloc. */

77
innobase/ut/ut0ut.c
View File

@ -16,6 +16,24 @@ Created 5/11/1994 Heikki Tuuri
ibool ut_always_false = FALSE;
/************************************************************
Gets the high 32 bits in a ulint. That is makes a shift >> 32,
but since there seem to be compiler bugs in both gcc and Visual C++,
we do this by a special conversion. */
ulint
ut_get_high32(
/*==========*/
/* out: a >> 32 */
ulint a) /* in: ulint */
{
if (sizeof(ulint) == 4) {
return(0);
}
return(a >> 32);
}
/************************************************************
The following function returns a clock time in milliseconds. */
@ -58,11 +76,11 @@ ut_print_timestamp(
FILE* file) /* in: file where to print */
{
#ifdef __WIN__
SYSTEMTIME cal_tm;
SYSTEMTIME cal_tm;
GetLocalTime(&cal_tm);
GetLocalTime(&cal_tm);
fprintf(file,"%02d%02d%02d %2d:%02d:%02d",
fprintf(file,"%02d%02d%02d %2d:%02d:%02d",
(int)cal_tm.wYear % 100,
(int)cal_tm.wMonth,
(int)cal_tm.wDay,
@ -70,23 +88,21 @@ ut_print_timestamp(
(int)cal_tm.wMinute,
(int)cal_tm.wSecond);
#else
struct tm cal_tm;
struct tm* cal_tm_ptr;
time_t tm;
struct tm cal_tm;
struct tm* cal_tm_ptr;
time_t tm;
time(&tm);
time(&tm);
#ifdef HAVE_LOCALTIME_R
localtime_r(&tm, &cal_tm);
cal_tm_ptr = &cal_tm;
localtime_r(&tm, &cal_tm);
cal_tm_ptr = &cal_tm;
#else
cal_tm_ptr = localtime(&tm);
cal_tm_ptr = localtime(&tm);
#endif
fprintf(file,"%02d%02d%02d %2d:%02d:%02d",
fprintf(file,"%02d%02d%02d %2d:%02d:%02d",
cal_tm_ptr->tm_year % 100,
cal_tm_ptr->tm_mon+1,
cal_tm_ptr->tm_mon + 1,
cal_tm_ptr->tm_mday,
cal_tm_ptr->tm_hour,
cal_tm_ptr->tm_min,
@ -94,6 +110,39 @@ ut_print_timestamp(
#endif
}
/**************************************************************
Returns current year, month, day. */
void
ut_get_year_month_day(
/*==================*/
ulint* year, /* out: current year */
ulint* month, /* out: month */
ulint* day) /* out: day */
{
#ifdef __WIN__
SYSTEMTIME cal_tm;
GetLocalTime(&cal_tm);
*year = (ulint)cal_tm.wYear;
*month = (ulint)cal_tm.wMonth;
*day = (ulint)cal_tm.wDay;
#else
struct tm cal_tm;
struct tm* cal_tm_ptr;
time_t tm;
time(&tm);
cal_tm_ptr = localtime(&tm);
*year = (ulint)cal_tm_ptr->tm_year;
*month = (ulint)cal_tm_ptr->tm_mon + 1;
*day = (ulint)cal_tm_ptr->tm_mday;
#endif
}
/*****************************************************************
Runs an idle loop on CPU. The argument gives the desired delay
in microseconds on 100 MHz Pentium + Visual C++. */

496
sql/ha_innobase.cc
View File

@ -76,20 +76,34 @@ bool innodb_skip = 0;
uint innobase_init_flags = 0;
ulong innobase_cache_size = 0;
/* The default values for the following, type long, start-up parameters
are declared in mysqld.cc: */
long innobase_mirrored_log_groups, innobase_log_files_in_group,
innobase_log_file_size, innobase_log_buffer_size,
innobase_buffer_pool_size, innobase_additional_mem_pool_size,
innobase_file_io_threads, innobase_lock_wait_timeout,
innobase_thread_concurrency, innobase_force_recovery;
innobase_thread_concurrency, innobase_force_recovery;
char *innobase_data_home_dir, *innobase_data_file_path;
char *innobase_log_group_home_dir, *innobase_log_arch_dir;
char *innobase_unix_file_flush_method;
my_bool innobase_flush_log_at_trx_commit, innobase_log_archive,
innobase_use_native_aio, innobase_fast_shutdown;
/* The default values for the following char* start-up parameters
are determined in innobase_init below: */
/* innobase_data_file_path=ibdata:15,idata2:1,... */
char* innobase_data_home_dir = NULL;
char* innobase_data_file_path = NULL;
char* innobase_log_group_home_dir = NULL;
char* innobase_log_arch_dir = NULL;
char* innobase_unix_file_flush_method = NULL;
/* Below we have boolean-valued start-up parameters, and their default
values */
my_bool innobase_flush_log_at_trx_commit = FALSE;
my_bool innobase_log_archive = FALSE;
my_bool innobase_use_native_aio = FALSE;
my_bool innobase_fast_shutdown = TRUE;
/* The following counter is used to convey information to InnoDB
about server activity: in selects it is not sensible to call
srv_active_wake_master_thread after each fetch or search, we only do
@ -331,227 +345,6 @@ ha_innobase::update_thd(
return(0);
}
/*************************************************************************
Reads the data files and their sizes from a character string given in
the .cnf file. */
static
bool
innobase_parse_data_file_paths_and_sizes(void)
/*==========================================*/
/* out: TRUE if ok, FALSE if parsing
error */
{
char* str;
char* endp;
char* path;
ulint size;
ulint i = 0;
str = innobase_data_file_path;
/* First calculate the number of data files and check syntax:
path:size[M];path:size[M]... . Note that a Windows path may
contain a drive name and a ':'. */
while (*str != '\0') {
path = str;
while ((*str != ':' && *str != '\0')
|| (*str == ':'
&& (*(str + 1) == '\\' || *(str + 1) == '/'))) {
str++;
}
if (*str == '\0') {
return(FALSE);
}
str++;
size = strtoul(str, &endp, 10);
str = endp;
if ((*str != 'M') && (*str != 'G')) {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
if (strlen(str) >= 6
&& *str == 'n'
&& *(str + 1) == 'e'
&& *(str + 2) == 'w') {
str += 3;
}
if (strlen(str) >= 3
&& *str == 'r'
&& *(str + 1) == 'a'
&& *(str + 2) == 'w') {
str += 3;
}
if (size == 0) {
return(FALSE);
}
i++;
if (*str == ';') {
str++;
} else if (*str != '\0') {
return(FALSE);
}
}
srv_data_file_names = (char**)ut_malloc(i * sizeof(void*));
srv_data_file_sizes = (ulint*)ut_malloc(i * sizeof(ulint));
srv_data_file_is_raw_partition = (ulint*)ut_malloc(i * sizeof(ulint));
srv_n_data_files = i;
/* Then store the actual values to our arrays */
str = innobase_data_file_path;
i = 0;
while (*str != '\0') {
path = str;
/* Note that we must ignore the ':' in a Windows path */
while ((*str != ':' && *str != '\0')
|| (*str == ':'
&& (*(str + 1) == '\\' || *(str + 1) == '/'))) {
str++;
}
if (*str == ':') {
/* Make path a null-terminated string */
*str = '\0';
str++;
}
size = strtoul(str, &endp, 10);
str = endp;
if ((*str != 'M') && (*str != 'G')) {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
srv_data_file_is_raw_partition[i] = 0;
if (strlen(str) >= 6
&& *str == 'n'
&& *(str + 1) == 'e'
&& *(str + 2) == 'w') {
str += 3;
srv_data_file_is_raw_partition[i] = SRV_NEW_RAW;
}
if (strlen(str) >= 3
&& *str == 'r'
&& *(str + 1) == 'a'
&& *(str + 2) == 'w') {
str += 3;
if (srv_data_file_is_raw_partition[i] == 0) {
srv_data_file_is_raw_partition[i] = SRV_OLD_RAW;
}
}
srv_data_file_names[i] = path;
srv_data_file_sizes[i] = size;
i++;
if (*str == ';') {
str++;
}
}
return(TRUE);
}
/*************************************************************************
Reads log group home directories from a character string given in
the .cnf file. */
static
bool
innobase_parse_log_group_home_dirs(void)
/*====================================*/
/* out: TRUE if ok, FALSE if parsing
error */
{
char* str;
char* path;
ulint i = 0;
str = innobase_log_group_home_dir;
/* First calculate the number of directories and check syntax:
path;path;... */
while (*str != '\0') {
path = str;
while (*str != ';' && *str != '\0') {
str++;
}
i++;
if (*str == ';') {
str++;
} else if (*str != '\0') {
return(FALSE);
}
}
if (i != (ulint) innobase_mirrored_log_groups) {
return(FALSE);
}
srv_log_group_home_dirs = (char**) ut_malloc(i * sizeof(void*));
/* Then store the actual values to our array */
str = innobase_log_group_home_dir;
i = 0;
while (*str != '\0') {
path = str;
while (*str != ';' && *str != '\0') {
str++;
}
if (*str == ';') {
*str = '\0';
str++;
}
srv_log_group_home_dirs[i] = path;
i++;
}
return(TRUE);
}
/*************************************************************************
Opens an InnoDB database. */
@ -574,49 +367,62 @@ innobase_init(void)
}
/* Use current_dir if no paths are set */
current_dir[0]=FN_CURLIB;
current_dir[1]=FN_LIBCHAR;
current_dir[2]=0;
current_dir[0] = FN_CURLIB;
current_dir[1] = FN_LIBCHAR;
current_dir[2] = 0;
/* Set InnoDB initialization parameters according to the values
read from MySQL .cnf file */
if (!innobase_data_file_path)
{
fprintf(stderr,
if (!innobase_data_file_path) {
fprintf(stderr,
"Cannot initialize InnoDB as 'innodb_data_file_path' is not set.\n"
"If you do not want to use transactional InnoDB tables, add a line\n"
"skip-innodb\n"
"to the [mysqld] section of init parameters in your my.cnf\n"
"or my.ini. If you want to use InnoDB tables, add for example,\n"
"innodb_data_file_path = ibdata1:30M\n"
"innodb_data_file_path = ibdata1:30M:autoextend\n"
"But to get good performance you should adjust for your hardware\n"
"the InnoDB startup options listed in section 2 at\n"
"http://www.innodb.com/ibman.html\n");
innodb_skip=1;
DBUG_RETURN(FALSE); // Continue without innobase
innodb_skip=1;
DBUG_RETURN(FALSE); /* Continue without InnoDB */
}
srv_data_home = (innobase_data_home_dir ? innobase_data_home_dir :
current_dir);
srv_logs_home = (char*) "";
srv_arch_dir = (innobase_log_arch_dir ? innobase_log_arch_dir :
current_dir);
ret = innobase_parse_data_file_paths_and_sizes();
ret = (bool)
srv_parse_data_file_paths_and_sizes(innobase_data_file_path,
&srv_data_file_names,
&srv_data_file_sizes,
&srv_data_file_is_raw_partition,
&srv_n_data_files,
&srv_auto_extend_last_data_file,
&srv_last_file_size_max);
if (ret == FALSE) {
fprintf(stderr, "InnoDB: syntax error in innodb_data_file_path\n");
DBUG_RETURN(TRUE);
fprintf(stderr,
"InnoDB: syntax error in innodb_data_file_path\n");
DBUG_RETURN(TRUE);
}
if (!innobase_log_group_home_dir)
innobase_log_group_home_dir= current_dir;
ret = innobase_parse_log_group_home_dirs();
if (!innobase_log_group_home_dir) {
innobase_log_group_home_dir = current_dir;
}
if (ret == FALSE) {
DBUG_RETURN(TRUE);
ret = (bool)
srv_parse_log_group_home_dirs(innobase_log_group_home_dir,
&srv_log_group_home_dirs);
if (ret == FALSE || innobase_mirrored_log_groups != 1) {
fprintf(stderr,
"InnoDB: syntax error in innodb_log_group_home_dir\n"
"InnoDB: or a wrong number of mirrored log groups\n");
DBUG_RETURN(TRUE);
}
srv_unix_file_flush_method_str = (innobase_unix_file_flush_method ?
@ -658,10 +464,11 @@ innobase_init(void)
if (err != DB_SUCCESS) {
DBUG_RETURN(1);
DBUG_RETURN(1);
}
(void) hash_init(&innobase_open_tables,32,0,0,
(hash_get_key) innobase_get_key,0,0);
(hash_get_key) innobase_get_key,0,0);
pthread_mutex_init(&innobase_mutex,MY_MUTEX_INIT_FAST);
DBUG_RETURN(0);
}
@ -1340,33 +1147,43 @@ build_template(
clust_index = dict_table_get_first_index_noninline(prebuilt->table);
if (!prebuilt->in_update_remember_pos) {
if (!prebuilt->hint_no_need_to_fetch_extra_cols) {
/* We have a hint that we should at least fetch all
columns in the key, or all columns in the table */
if (prebuilt->read_just_key) {
/* MySQL has instructed us that it is enough to
fetch the columns in the key */
fetch_all_in_key = TRUE;
} else {
/* We are building a temporary table: fetch all
columns */
columns; the reason is that MySQL may use the
clustered index key to store rows, but the mechanism
we use below to detect required columns does not
reveal that. Actually, it might be enough to
fetch only all in the key also in this case! */
templ_type = ROW_MYSQL_WHOLE_ROW;
}
}
if (prebuilt->select_lock_type == LOCK_X) {
/* TODO: should fix the code in sql_update so that we could do
with fetching only the needed columns */
/* We always retrieve the whole clustered index record if we
use exclusive row level locks, for example, if the read is
done in an UPDATE statement. */
templ_type = ROW_MYSQL_WHOLE_ROW;
}
if (templ_type == ROW_MYSQL_REC_FIELDS) {
/* In versions < 3.23.50 we always retrieved the clustered
index record if prebuilt->select_lock_type == LOCK_S,
but there is really not need for that, and in some cases
performance could be seriously degraded because the MySQL
optimizer did not know about our convention! */
if (prebuilt->select_lock_type != LOCK_NONE) {
/* Let index be the clustered index */
index = clust_index;
} else {
index = prebuilt->index;
}
index = prebuilt->index;
} else {
index = clust_index;
}
@ -1462,12 +1279,6 @@ skip_field:
(index->table->cols + templ->col_no)->clust_pos;
}
}
if (templ_type == ROW_MYSQL_REC_FIELDS
&& prebuilt->select_lock_type != LOCK_NONE) {
prebuilt->need_to_access_clustered = TRUE;
}
}
/************************************************************************
@ -1500,6 +1311,8 @@ ha_innobase::write_row(
}
if (table->next_number_field && record == table->record[0]) {
/* This is the case where the table has an
auto-increment column */
/* Fetch the value the user possibly has set in the
autoincrement field */
@ -1584,12 +1397,6 @@ ha_innobase::write_row(
}
}
/* Set the 'in_update_remember_pos' flag to FALSE to
make sure all columns are fetched in the select done by
update_auto_increment */
prebuilt->in_update_remember_pos = FALSE;
update_auto_increment();
if (auto_inc == 0) {
@ -1613,7 +1420,7 @@ ha_innobase::write_row(
}
/* We have to set sql_stat_start to TRUE because
update_auto_increment has called a select, and
update_auto_increment may have called a select, and
has reset that flag; row_insert_for_mysql has to
know to set the IX intention lock on the table, something
it only does at the start of each statement */
@ -1853,9 +1660,7 @@ ha_innobase::update_row(
/* This is not a delete */
prebuilt->upd_node->is_delete = FALSE;
if (!prebuilt->in_update_remember_pos) {
assert(prebuilt->template_type == ROW_MYSQL_WHOLE_ROW);
}
assert(prebuilt->template_type == ROW_MYSQL_WHOLE_ROW);
srv_conc_enter_innodb(prebuilt->trx);
@ -1901,7 +1706,6 @@ ha_innobase::delete_row(
/* This is a delete */
prebuilt->upd_node->is_delete = TRUE;
prebuilt->in_update_remember_pos = TRUE;
srv_conc_enter_innodb(prebuilt->trx);
@ -2616,7 +2420,9 @@ ha_innobase::create(
/* Create the table definition in InnoDB */
if (error = create_table_def(trx, form, norm_name)) {
error = create_table_def(trx, form, norm_name);
if (error) {
trx_commit_for_mysql(trx);
@ -3203,13 +3009,59 @@ ha_innobase::update_table_comment(
pos += sprintf(pos, "InnoDB free: %lu kB",
(ulong) innobase_get_free_space());
/* We assume 150 bytes of space to print info */
/* We assume 450 - length bytes of space to print info */
dict_print_info_on_foreign_keys(pos, 500, prebuilt->table);
if (length < 450) {
dict_print_info_on_foreign_keys(FALSE, pos, 450 - length,
prebuilt->table);
}
return(str);
}
/***********************************************************************
Gets the foreign key create info for a table stored in InnoDB. */
char*
ha_innobase::get_foreign_key_create_info(void)
/*==========================================*/
/* out, own: character string in the form which
can be inserted to the CREATE TABLE statement,
MUST be freed with ::free_foreign_key_create_info */
{
row_prebuilt_t* prebuilt = (row_prebuilt_t*)innobase_prebuilt;
char* str;
if (prebuilt == NULL) {
fprintf(stderr,
"InnoDB: Error: cannot get create info for foreign keys\n");
return(NULL);
}
str = (char*)ut_malloc(10000);
str[0] = '\0';
dict_print_info_on_foreign_keys(TRUE, str, 9000, prebuilt->table);
return(str);
}
/***********************************************************************
Frees the foreign key create info for a table stored in InnoDB, if it is
non-NULL. */
void
ha_innobase::free_foreign_key_create_info(
/*======================================*/
char* str) /* in, own: create info string to free */
{
if (str) {
ut_free(str);
}
}
/***********************************************************************
Tells something additional to the handler about how to do things. */
@ -3235,7 +3087,7 @@ ha_innobase::extra(
prebuilt->read_just_key = 0;
break;
case HA_EXTRA_DONT_USE_CURSOR_TO_UPDATE:
prebuilt->in_update_remember_pos = FALSE;
prebuilt->hint_no_need_to_fetch_extra_cols = FALSE;
break;
case HA_EXTRA_KEYREAD:
prebuilt->read_just_key = 1;
@ -3282,7 +3134,7 @@ ha_innobase::external_lock(
trx = prebuilt->trx;
prebuilt->sql_stat_start = TRUE;
prebuilt->in_update_remember_pos = TRUE;
prebuilt->hint_no_need_to_fetch_extra_cols = TRUE;
prebuilt->read_just_key = 0;
@ -3301,6 +3153,16 @@ ha_innobase::external_lock(
thd->transaction.all.innodb_active_trans = 1;
trx->n_mysql_tables_in_use++;
if (thd->tx_isolation == ISO_SERIALIZABLE
&& prebuilt->select_lock_type == LOCK_NONE) {
/* To get serializable execution we let InnoDB
conceptually add 'LOCK IN SHARE MODE' to all SELECTs
which otherwise would have been consistent reads */
prebuilt->select_lock_type = LOCK_S;
}
if (prebuilt->select_lock_type != LOCK_NONE) {
trx->mysql_n_tables_locked++;
@ -3407,8 +3269,8 @@ ha_innobase::store_lock(
lock_type == TL_READ_NO_INSERT) {
/* This is a SELECT ... IN SHARE MODE, or
we are doing a complex SQL statement like
INSERT INTO ... SELECT ... and the logical logging
requires the use of a locking read */
INSERT INTO ... SELECT ... and the logical logging (MySQL
binlog) requires the use of a locking read */
prebuilt->select_lock_type = LOCK_S;
} else {
@ -3448,37 +3310,59 @@ ha_innobase::get_auto_increment()
/*=============================*/
/* out: the next auto-increment column value */
{
row_prebuilt_t* prebuilt = (row_prebuilt_t*) innobase_prebuilt;
longlong nr;
int error;
row_prebuilt_t* prebuilt = (row_prebuilt_t*) innobase_prebuilt;
longlong nr;
int error;
(void) extra(HA_EXTRA_KEYREAD);
index_init(table->next_number_index);
/* Also SHOW TABLE STATUS calls this function. Previously, when we did
always read the max autoinc key value, setting x-locks, users were
surprised that SHOW TABLE STATUS could end up in a deadlock with
ordinary SQL queries. We avoid these deadlocks if the auto-inc
counter for the table has been initialized by fetching the value
from the table struct in dictionary cache. */
/* We use an exclusive lock when we read the max key value from the
auto-increment column index. This is because then build_template will
advise InnoDB to fetch all columns. In SHOW TABLE STATUS the query
id of the auto-increment column is not changed, and previously InnoDB
did not fetch it, causing SHOW TABLE STATUS to show wrong values
for the autoinc column. */
assert(prebuilt->table);
prebuilt->select_lock_type = LOCK_X;
prebuilt->trx->mysql_n_tables_locked += 1;
nr = dict_table_autoinc_read(prebuilt->table);
error=index_last(table->record[1]);
if (nr != 0) {
if (error) {
nr = 1;
} else {
nr = (longlong) table->next_number_field->
val_int_offset(table->rec_buff_length) + 1;
}
return(nr + 1);
}
(void) extra(HA_EXTRA_NO_KEYREAD);
(void) extra(HA_EXTRA_KEYREAD);
index_init(table->next_number_index);
index_end();
/* We use an exclusive lock when we read the max key value from the
auto-increment column index. This is because then build_template will
advise InnoDB to fetch all columns. In SHOW TABLE STATUS the query
id of the auto-increment column is not changed, and previously InnoDB
did not fetch it, causing SHOW TABLE STATUS to show wrong values
for the autoinc column. */
return(nr);
prebuilt->select_lock_type = LOCK_X;
/* Play safe and also give in another way the hint to fetch
all columns in the key: */
prebuilt->hint_no_need_to_fetch_extra_cols = FALSE;
prebuilt->trx->mysql_n_tables_locked += 1;
error = index_last(table->record[1]);
if (error) {
nr = 1;
} else {
nr = (longlong) table->next_number_field->
val_int_offset(table->rec_buff_length) + 1;
}
(void) extra(HA_EXTRA_NO_KEYREAD);
index_end();
return(nr);
}
#endif /* HAVE_INNOBASE_DB */

3
sql/ha_innobase.h
View File

@ -154,7 +154,8 @@ class ha_innobase: public handler
int rename_table(const char* from, const char* to);
int check(THD* thd, HA_CHECK_OPT* check_opt);
char* update_table_comment(const char* comment);
char* get_foreign_key_create_info();
void free_foreign_key_create_info(char* str);
THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to,
enum thr_lock_type lock_type);
longlong get_auto_increment();