Marko Mäkelä d0b1a6466c Bug #11760042 - 52409: Assertion failure: long semaphore wait ... In ha_innobase::create(), we check some things while holding an exclusive lock on the data dictionary. Defer the locking and the creation of transactions until after the checks have passed. The THDVAR could hang due to a mutex wait (see Bug #11750569 - 41163: deadlock in mysqld: LOCK_global_system_variables and LOCK_open), and we want to avoid waiting while holding InnoDB mutexes. innobase_index_name_is_reserved(): Replace the parameter trx_t with THD, so that the test can be performed before starting an InnoDB transaction. We only needed trx->mysql_thd. ha_innobase::create(): Create transaction and lock the data dictionary only after passing the basic tests. create_table_def(): Move the IS_MAGIC_TABLE_AND_USER_DENIED_ACCESS check to ha_innobase::create(). Assign to srv_lower_case_table_names while holding dict_sys->mutex. ha_innobase::delete_table(), ha_innobase::rename_table(), innobase_rename_table(): Assign srv_lower_case_table_names as late as possible. Here, the variable is not necessarily protected by dict_sys->mutex. ha_innobase::add_index(): Invoke innobase_index_name_is_reserved() and innobase_check_index_keys() before allocating anything. rb:618 approved by Jimmy Yang		2011-04-11 16:40:28 +03:00
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ha_innodb.cc	Bug #11760042 - 52409: Assertion failure: long semaphore wait	2011-04-11 16:40:28 +03:00
ha_innodb.h	Fix Bug#57252 disabling innobase_stats_on_metadata disables ANALYZE	2010-10-18 13:48:11 +03:00