--source include/galera_cluster.inc
--source include/have_innodb.inc

CREATE TABLE t1 (id INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);

--connection node_2
FLUSH TABLE WITH READ LOCK;
--echo ### This shouldn't block.
FLUSH TABLES t1 FOR EXPORT;

--connection node_1
ALTER TABLE t1 ADD COLUMN f2 INTEGER;

--connection node_2
UNLOCK TABLES;

--echo ### t1 should have column f2
SHOW CREATE TABLE t1;

--connection node_1
INSERT INTO t1 VALUES (2,3);

--connection node_2
SELECT * from t1;

--connection node_1
DROP TABLE t1;