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Merge dtrace patch with latest performance version

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This commit is contained in:
Mikael Ronstrom
2008-12-20 11:53:27 +01:00
parent 16a024c486 886faef7ee
commit 460cde4c6e
527 changed files with 193710 additions and 238418 deletions
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137
sql/handler.cc
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@@ -264,7 +264,7 @@ handler *get_ha_partition(partition_info *part_info)
DBUG_ENTER("get_ha_partition");
if ((partition= new ha_partition(partition_hton, part_info)))
{
if (partition->initialise_partition(current_thd->mem_root))
if (partition->initialize_partition(current_thd->mem_root))
{
delete partition;
partition= 0;
@@ -374,6 +374,10 @@ int ha_finalize_handlerton(st_plugin_int *plugin)
handlerton *hton= (handlerton *)plugin->data;
DBUG_ENTER("ha_finalize_handlerton");
/* hton can be NULL here, if ha_initialize_handlerton() failed. */
if (!hton)
goto end;
switch (hton->state)
{
case SHOW_OPTION_NO:
@@ -402,8 +406,16 @@ int ha_finalize_handlerton(st_plugin_int *plugin)
}
}
/*
In case a plugin is uninstalled and re-installed later, it should
reuse an array slot. Otherwise the number of uninstall/install
cycles would be limited.
*/
hton2plugin[hton->slot]= NULL;
my_free((uchar*)hton, MYF(0));
end:
DBUG_RETURN(0);
}
@@ -438,6 +450,7 @@ int ha_initialize_handlerton(st_plugin_int *plugin)
case SHOW_OPTION_YES:
{
uint tmp;
ulong fslot;
/* now check the db_type for conflict */
if (hton->db_type <= DB_TYPE_UNKNOWN ||
hton->db_type >= DB_TYPE_DEFAULT ||
@@ -462,7 +475,31 @@ int ha_initialize_handlerton(st_plugin_int *plugin)
tmp= hton->savepoint_offset;
hton->savepoint_offset= savepoint_alloc_size;
savepoint_alloc_size+= tmp;
hton->slot= total_ha++;
/*
In case a plugin is uninstalled and re-installed later, it should
reuse an array slot. Otherwise the number of uninstall/install
cycles would be limited. So look for a free slot.
*/
DBUG_PRINT("plugin", ("total_ha: %lu", total_ha));
for (fslot= 0; fslot < total_ha; fslot++)
{
if (!hton2plugin[fslot])
break;
}
if (fslot < total_ha)
hton->slot= fslot;
else
{
if (total_ha >= MAX_HA)
{
sql_print_error("Too many plugins loaded. Limit is %lu. "
"Failed on '%s'", (ulong) MAX_HA, plugin->name.str);
goto err;
}
hton->slot= total_ha++;
}
hton2plugin[hton->slot]=plugin;
if (hton->prepare)
total_ha_2pc++;
@@ -1242,7 +1279,12 @@ int ha_rollback_trans(THD *thd, bool all)
trans->ha_list= 0;
trans->no_2pc=0;
if (is_real_trans)
thd->transaction.xid_state.xid.null();
{
if (thd->transaction_rollback_request)
thd->transaction.xid_state.rm_error= thd->main_da.sql_errno();
else
thd->transaction.xid_state.xid.null();
}
if (all)
{
thd->variables.tx_isolation=thd->session_tx_isolation;
@@ -2166,7 +2208,12 @@ prev_insert_id(ulonglong nr, struct system_variables *variables)
- In both cases, the reserved intervals are remembered in
thd->auto_inc_intervals_in_cur_stmt_for_binlog if statement-based
binlogging; the last reserved interval is remembered in
auto_inc_interval_for_cur_row.
auto_inc_interval_for_cur_row. The number of reserved intervals is
remembered in auto_inc_intervals_count. It differs from the number of
elements in thd->auto_inc_intervals_in_cur_stmt_for_binlog() because the
latter list is cumulative over all statements forming one binlog event
(when stored functions and triggers are used), and collapses two
contiguous intervals in one (see its append() method).
The idea is that generated auto_increment values are predictable and
independent of the column values in the table. This is needed to be
@@ -2250,8 +2297,6 @@ int handler::update_auto_increment()
handler::estimation_rows_to_insert was set by
handler::ha_start_bulk_insert(); if 0 it means "unknown".
*/
uint nb_already_reserved_intervals=
thd->auto_inc_intervals_in_cur_stmt_for_binlog.nb_elements();
ulonglong nb_desired_values;
/*
If an estimation was given to the engine:
@@ -2263,17 +2308,17 @@ int handler::update_auto_increment()
start, starting from AUTO_INC_DEFAULT_NB_ROWS.
Don't go beyond a max to not reserve "way too much" (because
reservation means potentially losing unused values).
Note that in prelocked mode no estimation is given.
*/
if (nb_already_reserved_intervals == 0 &&
(estimation_rows_to_insert > 0))
if ((auto_inc_intervals_count == 0) && (estimation_rows_to_insert > 0))
nb_desired_values= estimation_rows_to_insert;
else /* go with the increasing defaults */
{
/* avoid overflow in formula, with this if() */
if (nb_already_reserved_intervals <= AUTO_INC_DEFAULT_NB_MAX_BITS)
if (auto_inc_intervals_count <= AUTO_INC_DEFAULT_NB_MAX_BITS)
{
nb_desired_values= AUTO_INC_DEFAULT_NB_ROWS *
(1 << nb_already_reserved_intervals);
nb_desired_values= AUTO_INC_DEFAULT_NB_ROWS *
(1 << auto_inc_intervals_count);
set_if_smaller(nb_desired_values, AUTO_INC_DEFAULT_NB_MAX);
}
else
@@ -2286,7 +2331,7 @@ int handler::update_auto_increment()
&nb_reserved_values);
if (nr == ~(ulonglong) 0)
DBUG_RETURN(HA_ERR_AUTOINC_READ_FAILED); // Mark failure
/*
That rounding below should not be needed when all engines actually
respect offset and increment in get_auto_increment(). But they don't
@@ -2297,7 +2342,7 @@ int handler::update_auto_increment()
*/
nr= compute_next_insert_id(nr-1, variables);
}
if (table->s->next_number_keypart == 0)
{
/* We must defer the appending until "nr" has been possibly truncated */
@@ -2341,8 +2386,9 @@ int handler::update_auto_increment()
{
auto_inc_interval_for_cur_row.replace(nr, nb_reserved_values,
variables->auto_increment_increment);
auto_inc_intervals_count++;
/* Row-based replication does not need to store intervals in binlog */
if (!thd->current_stmt_binlog_row_based)
if (mysql_bin_log.is_open() && !thd->current_stmt_binlog_row_based)
thd->auto_inc_intervals_in_cur_stmt_for_binlog.append(auto_inc_interval_for_cur_row.minimum(),
auto_inc_interval_for_cur_row.values(),
variables->auto_increment_increment);
@@ -2462,6 +2508,7 @@ void handler::ha_release_auto_increment()
release_auto_increment();
insert_id_for_cur_row= 0;
auto_inc_interval_for_cur_row.replace(0, 0, 0);
auto_inc_intervals_count= 0;
if (next_insert_id > 0)
{
next_insert_id= 0;
@@ -2711,8 +2758,56 @@ bool handler::get_error_message(int error, String* buf)
}
/**
Check for incompatible collation changes.
@retval
HA_ADMIN_NEEDS_UPGRADE Table may have data requiring upgrade.
@retval
0 No upgrade required.
*/
int handler::check_collation_compatibility()
{
ulong mysql_version= table->s->mysql_version;
if (mysql_version < 50124)
{
KEY *key= table->key_info;
KEY *key_end= key + table->s->keys;
for (; key < key_end; key++)
{
KEY_PART_INFO *key_part= key->key_part;
KEY_PART_INFO *key_part_end= key_part + key->key_parts;
for (; key_part < key_part_end; key_part++)
{
if (!key_part->fieldnr)
continue;
Field *field= table->field[key_part->fieldnr - 1];
uint cs_number= field->charset()->number;
if ((mysql_version < 50048 &&
(cs_number == 11 || /* ascii_general_ci - bug #29499, bug #27562 */
cs_number == 41 || /* latin7_general_ci - bug #29461 */
cs_number == 42 || /* latin7_general_cs - bug #29461 */
cs_number == 20 || /* latin7_estonian_cs - bug #29461 */
cs_number == 21 || /* latin2_hungarian_ci - bug #29461 */
cs_number == 22 || /* koi8u_general_ci - bug #29461 */
cs_number == 23 || /* cp1251_ukrainian_ci - bug #29461 */
cs_number == 26)) || /* cp1250_general_ci - bug #29461 */
(mysql_version < 50124 &&
(cs_number == 33 || /* utf8_general_ci - bug #27877 */
cs_number == 35))) /* ucs2_general_ci - bug #27877 */
return HA_ADMIN_NEEDS_UPGRADE;
}
}
}
return 0;
}
int handler::ha_check_for_upgrade(HA_CHECK_OPT *check_opt)
{
int error;
KEY *keyinfo, *keyend;
KEY_PART_INFO *keypart, *keypartend;
@@ -2741,6 +2836,10 @@ int handler::ha_check_for_upgrade(HA_CHECK_OPT *check_opt)
}
if (table->s->frm_version != FRM_VER_TRUE_VARCHAR)
return HA_ADMIN_NEEDS_ALTER;
if ((error= check_collation_compatibility()))
return error;
return check_for_upgrade(check_opt);
}
@@ -3243,8 +3342,8 @@ handler::ha_create_handler_files(const char *name, const char *old_name,
int
handler::ha_change_partitions(HA_CREATE_INFO *create_info,
const char *path,
ulonglong *copied,
ulonglong *deleted,
ulonglong * const copied,
ulonglong * const deleted,
const uchar *pack_frm_data,
size_t pack_frm_len)
{
@@ -3529,7 +3628,7 @@ int ha_init_key_cache(const char *name, KEY_CACHE *key_cache)
if (!key_cache->key_cache_inited)
{
pthread_mutex_lock(&LOCK_global_system_variables);
ulong tmp_buff_size= (ulong) key_cache->param_buff_size;
size_t tmp_buff_size= (size_t) key_cache->param_buff_size;
uint tmp_block_size= (uint) key_cache->param_block_size;
uint division_limit= key_cache->param_division_limit;
uint age_threshold= key_cache->param_age_threshold;
@@ -3553,7 +3652,7 @@ int ha_resize_key_cache(KEY_CACHE *key_cache)
if (key_cache->key_cache_inited)
{
pthread_mutex_lock(&LOCK_global_system_variables);
long tmp_buff_size= (long) key_cache->param_buff_size;
size_t tmp_buff_size= (size_t) key_cache->param_buff_size;
long tmp_block_size= (long) key_cache->param_block_size;
uint division_limit= key_cache->param_division_limit;
uint age_threshold= key_cache->param_age_threshold;
@@ -4334,6 +4433,8 @@ static int write_locked_table_maps(THD *thd)
(long) thd, (long) thd->lock,
(long) thd->locked_tables, (long) thd->extra_lock));
DBUG_PRINT("debug", ("get_binlog_table_maps(): %d", thd->get_binlog_table_maps()));
if (thd->get_binlog_table_maps() == 0)
{
MYSQL_LOCK *locks[3];