--source include/galera_cluster.inc --source include/have_innodb.inc --connection node_1 CREATE TABLE t1 (f1 INTEGER); LOCK TABLE t1 WRITE; --echo value prior to RSU: SHOW STATUS LIKE 'wsrep_desync_count'; SHOW VARIABLES LIKE 'wsrep_desync'; --connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1 --connection node_1a SET SESSION wsrep_sync_wait = 0; SET SESSION wsrep_osu_method = RSU; --send ALTER TABLE t1 ADD COLUMN f2 INTEGER; --connect node_1b, 127.0.0.1, root, , test, $NODE_MYPORT_1 --connection node_1b SET SESSION wsrep_sync_wait = 0; SET SESSION wsrep_osu_method = RSU; --send ALTER TABLE t1 ADD COLUMN f3 INTEGER; --sleep 5 --connection node_1 --echo value during RSU: SHOW STATUS LIKE 'wsrep_desync_count'; SHOW VARIABLES LIKE 'wsrep_desync'; UNLOCK TABLES; --connection node_1a --reap --connection node_1b --reap --connection node_1 --echo value after RSU: --sleep 3 SHOW STATUS LIKE 'wsrep_desync_count'; SHOW VARIABLES LIKE 'wsrep_desync'; SET GLOBAL wsrep_desync=0; DROP TABLE t1;