diff options
Diffstat (limited to 'mysql-test/suite/galera/t/MW-388.test')
-rw-r--r-- | mysql-test/suite/galera/t/MW-388.test | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/mysql-test/suite/galera/t/MW-388.test b/mysql-test/suite/galera/t/MW-388.test new file mode 100644 index 00000000..b88f53ca --- /dev/null +++ b/mysql-test/suite/galera/t/MW-388.test @@ -0,0 +1,79 @@ +--source include/galera_cluster.inc +--source include/have_debug.inc +--source include/have_debug_sync.inc +--source include/galera_have_debug_sync.inc + +--connection node_1 +CREATE TABLE t1 (f1 INTEGER PRIMARY KEY, f2 CHAR(255)) Engine=InnoDB; + +DELIMITER |; +CREATE PROCEDURE insert_proc () +BEGIN + DECLARE CONTINUE HANDLER FOR SQLEXCEPTION + BEGIN + GET DIAGNOSTICS CONDITION 1 @errno = MYSQL_ERRNO; + END; + INSERT INTO t1 VALUES (1, 'node 1'),(2, 'node 1'); + INSERT INTO t1 VALUES (3, 'node 1'); +END| +DELIMITER ;| + +# We need two slave threads here to guarantee progress. +# If we use only one thread the following could happen +# in node_1: +# We block the only slave thread in wsrep_apply_cb and we +# issue an INSERT (by calling the stored procedure) that will +# try to acquire galera's local monitor in pre_commit(). +# This usually works fine, except for when a commit cut event +# sneaks in the slave queue and gets a local seqno smaller than +# that of the INSERT. Because there is only one slave thread, +# commit cut is not processed and therefore does not advance +# local monitor, and our INSERT remains stuck there. + +SET GLOBAL wsrep_slave_threads = 2; +SET GLOBAL DEBUG_DBUG = "d,sync.wsrep_apply_cb"; + +--let $expected_cert_failures = `SELECT VARIABLE_VALUE + 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_cert_failures'` + +--connection node_2 +--send INSERT INTO t1 VALUES (1, 'node 2'); + +--connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1 +--connection node_1a +SET SESSION DEBUG_SYNC = "now WAIT_FOR sync.wsrep_apply_cb_reached"; + +--connection node_1 +SET SESSION wsrep_sync_wait = 0; +--send CALL insert_proc (); + +--connection node_1a +SET SESSION wsrep_sync_wait = 0; +--let $wait_condition = SELECT VARIABLE_VALUE = $expected_cert_failures FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_cert_failures' +--source include/wait_condition.inc + + +SET GLOBAL DEBUG_DBUG = ""; +SET DEBUG_SYNC = "now SIGNAL signal.wsrep_apply_cb"; + +--connection node_2 +--reap + +--connection node_1 +# We expect no errors here, because the handler in insert_proc() caught the deadlock error +--reap +SELECT @errno = 1213; +SELECT * FROM t1; + +--connection node_2 +SELECT * FROM t1; + +--connection node_1 +SET GLOBAL wsrep_slave_threads = DEFAULT; +DROP TABLE t1; +DROP PROCEDURE insert_proc; + +SET GLOBAL debug_dbug = NULL; +SET debug_sync='RESET'; + +# Make sure no pending signals are leftover to surprise subsequent tests. +SELECT @@debug_sync; |