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--source include/galera_cluster.inc
--source include/have_innodb.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc
#
# Test that DDL indeed causes all nodes to block so even unrelated updates
# are not allowed to proceed. We block the DDL using DBUG_SYNC
#
CREATE TABLE t1 (f1 INTEGER) ENGINE=InnoDB;
CREATE TABLE t2 (f1 INTEGER) ENGINE=InnoDB;
--let $galera_connection_name = node_1a
--let $galera_server_number = 1
--source include/galera_connect.inc
SET SESSION wsrep_sync_wait = 0;
--let $galera_connection_name = node_1b
--let $galera_server_number = 1
--source include/galera_connect.inc
# node_1c tests write to unrelated table trough a transaction
--let $galera_connection_name = node_1c
--let $galera_server_number = 1
--source include/galera_connect.inc
--connection node_1
SET DEBUG_SYNC= 'RESET';
SET DEBUG_SYNC = 'alter_table_before_open_tables SIGNAL before_open_tables WAIT_FOR continue';
--send ALTER TABLE t1 ADD COLUMN f2 INTEGER;
--connection node_1a
SET DEBUG_SYNC= 'now WAIT_FOR before_open_tables';
# if we would retry the insert, it would fail for wrong column count
# on second try
SET wsrep_retry_autocommit=0;
# Allowed
SELECT COUNT(*) = 0 FROM t1;
# Allowed
SELECT COUNT(*) = 0 FROM t2;
# Not allowed, this will hang because of ALTER
--send INSERT INTO t1 VALUES (1);
--connection node_1c
SET SESSION wsrep_sync_wait = 0;
SET AUTOCOMMIT=OFF;
START TRANSACTION;
# Allowed
SELECT COUNT(*) = 0 FROM t1;
# Allowed
SELECT COUNT(*) = 0 FROM t2;
# Allowed (until commit)
INSERT INTO t2 VALUES (1);
# Hangs
--send COMMIT;
--connection node_1b
SET SESSION wsrep_sync_wait = 0;
# The Commit issued above is still not done
--sleep 1
SELECT COUNT(*) = 0 FROM t2;
SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE INFO = 'Commit';
SET DEBUG_SYNC= 'now SIGNAL continue';
--connection node_1a
--error ER_LOCK_DEADLOCK
--reap
--connection node_1c
# this will succeeed, becaus the query will be replayed
--reap
--connection node_1
--reap
SELECT COUNT(*) = 0 FROM t1;
SELECT COUNT(*) = 1 FROM t2;
SET debug_sync='RESET';
--connection node_2
SELECT COUNT(*) = 0 FROM t1;
SELECT COUNT(*) = 1 FROM t2;
DROP TABLE t1;
DROP TABLE t2;
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