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connection node_1;
CREATE TABLE t1 (f1 INTEGER);
LOCK TABLE t1 WRITE;
value prior to RSU:
SHOW STATUS LIKE 'wsrep_desync_count';
Variable_name Value
wsrep_desync_count 0
SHOW VARIABLES LIKE 'wsrep_desync';
Variable_name Value
wsrep_desync OFF
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;
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;
ALTER TABLE t1 ADD COLUMN f3 INTEGER;;
connection node_1;
value during RSU:
SHOW STATUS LIKE 'wsrep_desync_count';
Variable_name Value
wsrep_desync_count 2
SHOW VARIABLES LIKE 'wsrep_desync';
Variable_name Value
wsrep_desync OFF
UNLOCK TABLES;
connection node_1a;
connection node_1b;
connection node_1;
value after RSU:
SHOW STATUS LIKE 'wsrep_desync_count';
Variable_name Value
wsrep_desync_count 0
SHOW VARIABLES LIKE 'wsrep_desync';
Variable_name Value
wsrep_desync OFF
SET GLOBAL wsrep_desync=0;
Warnings:
Warning 1231 'wsrep_desync' is already OFF.
DROP TABLE t1;
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