# The test verifies that the FLUSH TABLES WITH READ LOCK does not
# time out if it needs to wait for another MDL lock for short duration
# during SST donation.
 
--source include/galera_cluster.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc

--let $node_1 = node_1
--let $node_2 = node_2
--source include/auto_increment_offset_save.inc

--let $galera_connection_name = node_1_ctrl
--let $galera_server_number = 1
--source include/galera_connect.inc

#
# Run UPDATE on node_1 and make it block before table locks are taken.
# This should block FTWRL.
#
--connection node_1
CREATE TABLE t1 (f1 INT PRIMARY KEY, f2 INT);
INSERT INTO t1 VALUES (1, 1);
SET DEBUG_SYNC = "before_lock_tables_takes_lock SIGNAL sync_point_reached WAIT_FOR sync_point_continue";
--send UPDATE t1 SET f2 = 2 WHERE f1 = 1

--connection node_1_ctrl
SET DEBUG_SYNC = "now WAIT_FOR sync_point_reached";

#
# Restart node_2, force SST.
#
--connection node_2
--source include/shutdown_mysqld.inc
--remove_file $MYSQLTEST_VARDIR/mysqld.2/data/grastate.dat
# Restart without waiting. The UPDATE should block FTWRL on node_1,
# so the SST cannot be completed and node_2 cannot join before
# UPDATE connection is signalled to continue.
--write_line "restart:$start_mysqld_params" $_expect_file_name
# If the bug is present, FTWRL times out on node_1 in couple of
# seconds and node_2 fails to join.
--sleep 10

--connection node_1_ctrl
SET DEBUG_SYNC = "now SIGNAL sync_point_continue";

--connection node_1
--reap
SET DEBUG_SYNC = "RESET";

--connection node_2
--enable_reconnect
--source include/wait_until_connected_again.inc

--connection node_1
DROP TABLE t1;

--source include/auto_increment_offset_restore.inc