connection node_2;
connection node_1;
connection node_1a;
SET SESSION wsrep_sync_wait = 0;
connection node_1;
CREATE TABLE t1 (f1 INTEGER) Engine=InnoDB;
SET GLOBAL innodb_disallow_writes=ON;
INSERT INTO t1 VALUES (1);;
connection node_1a;
SELECT COUNT(*) = 1 FROM t1;
COUNT(*) = 1
0
SELECT COUNT(*) = 1 FROM t1;
COUNT(*) = 1
0
SET GLOBAL innodb_disallow_writes=OFF;
connection node_1;
SELECT COUNT(*) = 1 FROM t1;
COUNT(*) = 1
1
connection node_2;
SELECT COUNT(*) = 1 FROM t1;
COUNT(*) = 1
1
DROP TABLE t1;