diff options
Diffstat (limited to 'sql/service_wsrep.cc')
| -rw-r--r-- | sql/service_wsrep.cc | 34 |
1 files changed, 14 insertions, 20 deletions
diff --git a/sql/service_wsrep.cc b/sql/service_wsrep.cc index 4016b0902c7..ca816cf1332 100644 --- a/sql/service_wsrep.cc +++ b/sql/service_wsrep.cc @@ -29,12 +29,14 @@ extern "C" my_bool wsrep_on(const THD *thd) extern "C" void wsrep_thd_LOCK(const THD *thd) { + mysql_mutex_lock(&thd->LOCK_thd_kill); mysql_mutex_lock(&thd->LOCK_thd_data); } extern "C" void wsrep_thd_UNLOCK(const THD *thd) { mysql_mutex_unlock(&thd->LOCK_thd_data); + mysql_mutex_unlock(&thd->LOCK_thd_kill); } extern "C" void wsrep_thd_kill_LOCK(const THD *thd) @@ -188,6 +190,9 @@ extern "C" void wsrep_handle_SR_rollback(THD *bf_thd, DBUG_ASSERT(wsrep_thd_is_SR(victim_thd)); if (!victim_thd || !wsrep_on(bf_thd)) return; + mysql_mutex_lock(&victim_thd->LOCK_thd_kill); + mysql_mutex_lock(&victim_thd->LOCK_thd_data); + WSREP_DEBUG("handle rollback, for deadlock: thd %llu trx_id %" PRIu64 " frags %zu conf %s", victim_thd->thread_id, victim_thd->wsrep_trx_id(), @@ -208,6 +213,10 @@ extern "C" void wsrep_handle_SR_rollback(THD *bf_thd, { wsrep_thd_self_abort(victim_thd); } + + mysql_mutex_unlock(&victim_thd->LOCK_thd_kill); + mysql_mutex_unlock(&victim_thd->LOCK_thd_data); + if (bf_thd) { wsrep_store_threadvars(bf_thd); @@ -217,16 +226,8 @@ extern "C" void wsrep_handle_SR_rollback(THD *bf_thd, extern "C" my_bool wsrep_thd_bf_abort(THD *bf_thd, THD *victim_thd, my_bool signal) { - DBUG_EXECUTE_IF("sync.before_wsrep_thd_abort", - { - const char act[]= - "now " - "SIGNAL sync.before_wsrep_thd_abort_reached " - "WAIT_FOR signal.before_wsrep_thd_abort"; - DBUG_ASSERT(!debug_sync_set_action(bf_thd, - STRING_WITH_LEN(act))); - };); - + mysql_mutex_assert_owner(&victim_thd->LOCK_thd_kill); + mysql_mutex_assert_owner(&victim_thd->LOCK_thd_data); my_bool ret= wsrep_bf_abort(bf_thd, victim_thd); /* Send awake signal if victim was BF aborted or does not @@ -235,26 +236,19 @@ extern "C" my_bool wsrep_thd_bf_abort(THD *bf_thd, THD *victim_thd, */ if ((ret || !wsrep_on(victim_thd)) && signal) { - mysql_mutex_assert_not_owner(&victim_thd->LOCK_thd_data); - mysql_mutex_assert_not_owner(&victim_thd->LOCK_thd_kill); - mysql_mutex_lock(&victim_thd->LOCK_thd_data); - if (victim_thd->wsrep_aborter && victim_thd->wsrep_aborter != bf_thd->thread_id) { WSREP_DEBUG("victim is killed already by %llu, skipping awake", victim_thd->wsrep_aborter); - mysql_mutex_unlock(&victim_thd->LOCK_thd_data); return false; } - mysql_mutex_lock(&victim_thd->LOCK_thd_kill); victim_thd->wsrep_aborter= bf_thd->thread_id; victim_thd->awake_no_mutex(KILL_QUERY); - mysql_mutex_unlock(&victim_thd->LOCK_thd_kill); - mysql_mutex_unlock(&victim_thd->LOCK_thd_data); - } else { - WSREP_DEBUG("wsrep_thd_bf_abort skipped awake"); } + else + WSREP_DEBUG("wsrep_thd_bf_abort skipped awake"); + return ret; } |