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Safety fix: lock binlog_end_pos before calling signal_update

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The mutex is needed to ensure that sql thread should not not miss the error
signal.
This commit is contained in:
Michael Widenius 2017-06-19 06:37:43 +03:00 committed by Sergei Golubchik
parent 458d5ed8aa
commit f71bed08ca
1 changed files with 2 additions and 0 deletions
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sql/rpl_parallel.cc
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@ -256,7 +256,9 @@ signal_error_to_sql_driver_thread(THD *thd, rpl_group_info *rgi, int err)
rgi->rli->stop_for_until= false;
mysql_mutex_lock(rgi->rli->relay_log.get_log_lock());
mysql_mutex_unlock(rgi->rli->relay_log.get_log_lock());
rgi->rli->relay_log.lock_binlog_end_pos();
rgi->rli->relay_log.signal_update();
rgi->rli->relay_log.unlock_binlog_end_pos();
}