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MDEV-10041: Server crashes sporadically during bootstrap while running wsrep tests

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The crash is caused due to a race condition where wsrep
startup threads invoke ha_maria::implicit_commit() method
while maria_hton is partially initialized. The fix is to
skip this method if plugins are uninitialized.
This commit is contained in:
Nirbhay Choubey 2016-09-28 13:23:31 -04:00
parent 458648e5da
commit 7c38a94435
1 changed files with 2 additions and 1 deletions
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3
storage/maria/ha_maria.cc
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@ -2839,9 +2839,10 @@ int ha_maria::implicit_commit(THD *thd, bool new_trn)
int error;
uint locked_tables;
DYNAMIC_ARRAY used_tables;
extern my_bool plugins_are_initialized;
DBUG_ENTER("ha_maria::implicit_commit");
if (!maria_hton || !(trn= THD_TRN))
if (!maria_hton || !plugins_are_initialized || !(trn= THD_TRN))
DBUG_RETURN(0);
if (!new_trn && (thd->locked_tables_mode == LTM_LOCK_TABLES ||
thd->locked_tables_mode == LTM_PRELOCKED_UNDER_LOCK_TABLES))