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MDEV-7402 'reset master' hangs, waits for signalled COND_xid_list

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Using a boolean flag for 'there is a RESET MASTER in progress' doesn't
work very well for multiple concurrent RESET MASTER statements.
Changed to a counter.
This commit is contained in:
Sergei Golubchik
2015-01-19 14:32:28 +01:00
parent 73ebabd2ee
commit 510ca9b697
4 changed files with 48 additions and 4 deletions
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sql/log.h
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@@ -470,7 +470,7 @@ class MYSQL_BIN_LOG: public TC_LOG, private MYSQL_LOG
anyway). Instead we should signal COND_xid_list whenever a new binlog
checkpoint arrives - when all have arrived, RESET MASTER will complete.
*/
bool reset_master_pending;
uint reset_master_pending;
ulong mark_xid_done_waiting;
/* LOCK_log and LOCK_index are inited by init_pthread_objects() */