Change query check for Galera

lib/MySQL_Monitor.cpp

@@ -1056,7 +1056,7 @@ void * monitor_galera_thread(void *arg) {
 	}
 
 	mmsd->t1=monotonic_time();
-	mmsd->async_exit_status=mysql_query_start(&mmsd->interr,mmsd->mysql,"SELECT (SELECT IF(VARIABLE_VALUE=4,'YES','NO') FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='WSREP_LOCAL_STATE') wsrep_local_state, (SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='READ_ONLY') read_only, (SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='WSREP_LOCAL_RECV_QUEUE') wsrep_local_recv_queue");
+	mmsd->async_exit_status=mysql_query_start(&mmsd->interr,mmsd->mysql,"SELECT (SELECT IF(VARIABLE_VALUE=4,'YES','NO') FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='WSREP_LOCAL_STATE') wsrep_local_state, (SELECT IF(VARIABLE_VALUE=0 OR VARIABLE_VALUE='OFF','NO','YES') FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='READ_ONLY') read_only, (SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME='WSREP_LOCAL_RECV_QUEUE') wsrep_local_recv_queue");
 	while (mmsd->async_exit_status) {
 		mmsd->async_exit_status=wait_for_mysql(mmsd->mysql, mmsd->async_exit_status);
 		unsigned long long now=monotonic_time();