#
# Test that the  wsrep_var_OSU_method variable can be changed in the middle of an ALTER without adverse effects.
# In-depth testing of various OSU methods is implemented in separate tests.
#

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

CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) Engine=InnoDB;

--connection node_1
SET SESSION wsrep_OSU_method = "RSU";
SET DEBUG_SYNC = 'alter_table_before_open_tables WAIT_FOR continue';
--send ALTER TABLE t1 ADD COLUMN f2 INTEGER;


--connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1
--connection node_1a

--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE = 'debug sync point: alter_table_before_open_tables'
--source include/wait_condition.inc

SET GLOBAL wsrep_OSU_method = "TOI";
SET DEBUG_SYNC= 'now SIGNAL continue';

--connection node_1
--reap

SELECT COUNT(*) = 2 FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 't1';

--connection node_2
# The ALTER above is not visible on node_2
SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 't1';

--connection node_1
SET SESSION wsrep_OSU_method = "TOI";

--connection node_1
SET DEBUG_SYNC= 'RESET';

--connection node_1a
SET DEBUG_SYNC= 'RESET';

DROP TABLE t1;