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MDEV-5789: race between rpl_parallel_change_thread_count and slave start upon server start without --skip-slave-start

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Make sure to signal the condition variable for the thread pool after
the new threads have been added to the pool.

Thanks to user nanyi607rao, who reported this bug on maria-developers@.
This commit is contained in:
unknown
2014-03-07 12:08:38 +01:00
parent 2aa619ec68
commit fd25574645
1 changed files with 5 additions and 0 deletions
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5
sql/rpl_parallel.cc
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@@ -705,6 +705,11 @@ rpl_parallel_change_thread_count(rpl_parallel_thread_pool *pool,
pool->changing= false;
mysql_mutex_unlock(&LOCK_active_mi);
}
mysql_mutex_lock(&pool->LOCK_rpl_thread_pool);
mysql_cond_broadcast(&pool->COND_rpl_thread_pool);
mysql_mutex_unlock(&pool->LOCK_rpl_thread_pool);
return 0;
err: