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MDEV-7273 - 10.1 fails to start up during tc_log initializations on PPC64

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log-tc-size is 24K by default. Page size is 64K on PPC64. But log-tc-size
must be at least 3 x page size. This is enforced by TC_LOG_MMAP::open()
with a comment: to guarantee non-empty pool.

This all makes server not startable in default configuration on PPC64.

Autosize log-tc-size, so that it's min value= page size * 3, default
value= page size * 6, block size= page size.
This commit is contained in:
Sergey Vojtovich
2014-12-26 23:38:45 +04:00
parent 8c616cd347
commit f65901eef2
10 changed files with 54 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
mysql-test/r/mysqld--help.result
View File

@ -1199,7 +1199,6 @@ log-slow-rate-limit 1
log-slow-slave-statements FALSE
log-slow-verbosity
log-tc tc.log
log-tc-size 24576
log-warnings 1
long-query-time 10
low-priority-updates FALSE

11
mysql-test/suite/sys_vars/inc/sysvars_server.inc
View File

@ -28,7 +28,7 @@ select * from information_schema.system_variables
'system_time_zone',
'version_comment',
'version_compile_machine', 'version_compile_os',
'version_malloc_library', 'version'
'version_malloc_library', 'log_tc_size', 'version'
)
order by variable_name;
@ -53,4 +53,13 @@ select VARIABLE_NAME, VARIABLE_SCOPE, VARIABLE_TYPE, VARIABLE_COMMENT,
)
order by variable_name;
# yet less data: no values, no blocks size, no min/max value.
select VARIABLE_NAME, GLOBAL_VALUE_ORIGIN, VARIABLE_SCOPE, VARIABLE_TYPE,
VARIABLE_COMMENT, ENUM_VALUE_LIST, READ_ONLY, COMMAND_LINE_ARGUMENT
from information_schema.system_variables
where variable_name in (
'log_tc_size'
)
order by variable_name;
set global div_precision_increment=default;

4
mysql-test/suite/sys_vars/r/log_tc_size_basic.result Normal file
View File

@ -0,0 +1,4 @@
SET GLOBAL log_tc_size=1;
ERROR HY000: Variable 'log_tc_size' is a read only variable
SET SESSION log_tc_size=1;
ERROR HY000: Variable 'log_tc_size' is a read only variable

17
mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result
View File

@ -18,7 +18,7 @@ variable_name not in (
'system_time_zone',
'version_comment',
'version_compile_machine', 'version_compile_os',
'version_malloc_library', 'version'
'version_malloc_library', 'log_tc_size', 'version'
)
order by variable_name;
VARIABLE_NAME AUTOCOMMIT
@ -4887,4 +4887,19 @@ NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT NULL
select VARIABLE_NAME, GLOBAL_VALUE_ORIGIN, VARIABLE_SCOPE, VARIABLE_TYPE,
VARIABLE_COMMENT, ENUM_VALUE_LIST, READ_ONLY, COMMAND_LINE_ARGUMENT
from information_schema.system_variables
where variable_name in (
'log_tc_size'
)
order by variable_name;
VARIABLE_NAME LOG_TC_SIZE
GLOBAL_VALUE_ORIGIN AUTO
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE BIGINT UNSIGNED
VARIABLE_COMMENT Size of transaction coordinator log.
ENUM_VALUE_LIST NULL
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
set global div_precision_increment=default;

5
mysql-test/suite/sys_vars/t/log_tc_size_basic.test Normal file
View File

@ -0,0 +1,5 @@
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SET GLOBAL log_tc_size=1;
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SET SESSION log_tc_size=1;

2
mysql-test/t/mysqld--help.test
View File

@ -22,7 +22,7 @@ perl;
log-slow-queries pid-file slow-query-log-file log-basename
datadir slave-load-tmpdir tmpdir socket thread-pool-size
large-files-support lower-case-file-system system-time-zone
version.*/;
log-tc-size version.*/;
# Plugins which may or may not be there:
@plugins=qw/innodb archive blackhole federated partition

11
sql/log.cc
View File

@ -8428,7 +8428,7 @@ ulong tc_log_page_waits= 0;
static const uchar tc_log_magic[]={(uchar) 254, 0x23, 0x05, 0x74};
ulong opt_tc_log_size= TC_LOG_MIN_SIZE;
ulong opt_tc_log_size;
ulong tc_log_max_pages_used=0, tc_log_page_size=0, tc_log_cur_pages_used=0;
int TC_LOG_MMAP::open(const char *opt_name)
@ -8441,7 +8441,6 @@ int TC_LOG_MMAP::open(const char *opt_name)
DBUG_ASSERT(opt_name && opt_name[0]);
tc_log_page_size= my_getpagesize();
DBUG_ASSERT(TC_LOG_PAGE_SIZE % tc_log_page_size == 0);
fn_format(logname,opt_name,mysql_data_home,"",MY_UNPACK_FILENAME);
if ((fd= mysql_file_open(key_file_tclog, logname, O_RDWR, MYF(0))) < 0)
@ -8780,6 +8779,7 @@ mmap_do_checkpoint_callback(void *data)
int TC_LOG_MMAP::unlog(ulong cookie, my_xid xid)
{
pending_cookies *full_buffer= NULL;
uint32 ncookies= tc_log_page_size / sizeof(my_xid);
DBUG_ASSERT(*(my_xid *)(data+cookie) == xid);
/*
@ -8793,7 +8793,7 @@ int TC_LOG_MMAP::unlog(ulong cookie, my_xid xid)
mysql_mutex_lock(&LOCK_pending_checkpoint);
if (pending_checkpoint == NULL)
{
uint32 size= sizeof(*pending_checkpoint);
uint32 size= sizeof(*pending_checkpoint) + sizeof(ulong) * (ncookies - 1);
if (!(pending_checkpoint=
(pending_cookies *)my_malloc(size, MYF(MY_ZEROFILL))))
{
@ -8804,8 +8804,7 @@ int TC_LOG_MMAP::unlog(ulong cookie, my_xid xid)
}
pending_checkpoint->cookies[pending_checkpoint->count++]= cookie;
if (pending_checkpoint->count == sizeof(pending_checkpoint->cookies) /
sizeof(pending_checkpoint->cookies[0]))
if (pending_checkpoint->count == ncookies)
{
full_buffer= pending_checkpoint;
pending_checkpoint= NULL;
@ -8839,7 +8838,7 @@ TC_LOG_MMAP::commit_checkpoint_notify(void *cookie)
if (count == 0)
{
uint i;
for (i= 0; i < sizeof(pending->cookies)/sizeof(pending->cookies[0]); ++i)
for (i= 0; i < tc_log_page_size / sizeof(my_xid); ++i)
delete_entry(pending->cookies[i]);
my_free(pending);
}

3
sql/log.h
View File

@ -118,7 +118,6 @@ public:
};
#define TC_LOG_PAGE_SIZE 8192
#define TC_LOG_MIN_SIZE (3*TC_LOG_PAGE_SIZE)
#ifdef HAVE_MMAP
class TC_LOG_MMAP: public TC_LOG
@ -133,7 +132,7 @@ class TC_LOG_MMAP: public TC_LOG
struct pending_cookies {
uint count;
uint pending_count;
ulong cookies[TC_LOG_PAGE_SIZE/sizeof(my_xid)];
ulong cookies[1];
};
private:

7
sql/mysqld.cc
View File

@ -4124,6 +4124,7 @@ static int init_common_variables()
strmake(pidfile_name, opt_log_basename, sizeof(pidfile_name)-5);
strmov(fn_ext(pidfile_name),".pid"); // Add proper extension
SYSVAR_AUTOSIZE(pidfile_name_ptr, pidfile_name);
mark_sys_var_value_origin(&opt_tc_log_size, sys_var::AUTO);
/*
The default-storage-engine entry in my_long_options should have a
@ -7224,12 +7225,6 @@ struct my_option my_long_options[]=
"more than one storage engine, when binary log is disabled).",
&opt_tc_log_file, &opt_tc_log_file, 0, GET_STR,
REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
#ifdef HAVE_MMAP
{"log-tc-size", 0, "Size of transaction coordinator log.",
&opt_tc_log_size, &opt_tc_log_size, 0, GET_ULONG,
REQUIRED_ARG, TC_LOG_MIN_SIZE, TC_LOG_MIN_SIZE, (ulonglong) ULONG_MAX, 0,
TC_LOG_PAGE_SIZE, 0},
#endif
{"master-info-file", 0,
"The location and name of the file that remembers the master and where "
"the I/O replication thread is in the master's binlogs. Defaults to "

11
sql/sys_vars.cc
View File

@ -5202,3 +5202,14 @@ static Sys_var_mybool Sys_strict_password_validation(
"that cannot be validated (passwords specified as a hash)",
GLOBAL_VAR(strict_password_validation),
CMD_LINE(OPT_ARG), DEFAULT(TRUE), NO_MUTEX_GUARD, NOT_IN_BINLOG);
#ifdef HAVE_MMAP
static Sys_var_ulong Sys_log_tc_size(
"log_tc_size",
"Size of transaction coordinator log.",
READ_ONLY GLOBAL_VAR(opt_tc_log_size),
CMD_LINE(REQUIRED_ARG),
VALID_RANGE(my_getpagesize() * 3, ULONG_MAX),
DEFAULT(my_getpagesize() * 6),
BLOCK_SIZE(my_getpagesize()));
#endif