diff options
Diffstat (limited to 'sql/sql_class.cc')
| -rw-r--r-- | sql/sql_class.cc | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sql/sql_class.cc b/sql/sql_class.cc index c3274ae9b82..92736eacee2 100644 --- a/sql/sql_class.cc +++ b/sql/sql_class.cc @@ -1,6 +1,6 @@ /* Copyright (c) 2000, 2015, Oracle and/or its affiliates. - Copyright (c) 2008, 2020, MariaDB Corporation. + Copyright (c) 2008, 2021, MariaDB Corporation. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -4730,6 +4730,16 @@ thd_need_ordering_with(const MYSQL_THD thd, const MYSQL_THD other_thd) DBUG_EXECUTE_IF("disable_thd_need_ordering_with", return 1;); if (!thd || !other_thd) return 1; +#ifdef WITH_WSREP + /* wsrep applier, replayer and TOI processing threads are ordered + by replication provider, relaxed GAP locking protocol can be used + between high priority wsrep threads + */ + if (WSREP_ON && + wsrep_thd_is_BF(const_cast<THD *>(thd), false) && + wsrep_thd_is_BF(const_cast<THD *>(other_thd), true)) + return 0; +#endif /* WITH_WSREP */ rgi= thd->rgi_slave; other_rgi= other_thd->rgi_slave; if (!rgi || !other_rgi) |