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