diff options
Diffstat (limited to 'sql/service_wsrep.cc')
| -rw-r--r-- | sql/service_wsrep.cc | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/sql/service_wsrep.cc b/sql/service_wsrep.cc index d0a96a85a60..91b1a48cad7 100644 --- a/sql/service_wsrep.cc +++ b/sql/service_wsrep.cc @@ -119,15 +119,23 @@ extern "C" my_bool wsrep_get_debug() return wsrep_debug; } +/* + Test if this connection is a true local (user) connection and not + a replication or wsrep applier thread. + + Note that this is only usable for galera (as there are other kinds + of system threads, and only if WSREP_NNULL() is tested by the caller. + */ extern "C" my_bool wsrep_thd_is_local(const THD *thd) { /* - async replication IO and background threads have nothing to replicate in the cluster, - marking them as non-local here to prevent write set population and replication + async replication IO and background threads have nothing to + replicate in the cluster, marking them as non-local here to + prevent write set population and replication - async replication SQL thread, applies client transactions from mariadb master - and will be replicated into cluster - */ + async replication SQL thread, applies client transactions from + mariadb master and will be replicated into cluster + */ return ( thd->system_thread != SYSTEM_THREAD_SLAVE_BACKGROUND && thd->system_thread != SYSTEM_THREAD_SLAVE_IO && |