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#209 add tokudb_open_table_check_empty session variable to enable/disable may_table_be_open

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This commit is contained in:
Rich Prohaska 2014-04-25 14:26:29 -04:00
parent d8fdb8dc9f
commit d9bddf1341
3 changed files with 4 additions and 1 deletions
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2
storage/tokudb/ha_tokudb.cc
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@ -1732,7 +1732,7 @@ int ha_tokudb::initialize_share(
init_auto_increment();
}
if (may_table_be_empty(txn)) {
if (THDVAR(thd, open_table_check_empty) && may_table_be_empty(txn)) {
share->try_table_lock = true;
}
else {

1
storage/tokudb/hatoku_hton.cc
View file

@ -1394,6 +1394,7 @@ static struct st_mysql_sys_var *tokudb_system_variables[] = {
MYSQL_SYSVAR(loader_memory_size),
MYSQL_SYSVAR(hide_default_row_format),
MYSQL_SYSVAR(killed_time),
MYSQL_SYSVAR(open_table_check_empty),
NULL
};

2
storage/tokudb/hatoku_hton.h
View file

@ -484,6 +484,8 @@ static int tokudb_killed_callback(void) {
return thd->killed;
}
static MYSQL_THDVAR_BOOL(open_table_check_empty, 0, "Check if table is empty at first open", NULL /*check*/, NULL /*update*/, true /*default*/);
extern HASH tokudb_open_tables;
extern pthread_mutex_t tokudb_mutex;
extern uint32_t tokudb_write_status_frequency;