Galera MTR Test: Test for MW-28 : Assertion with --wsrep-log-conflicts

mysql-test/suite/galera/r/galera_wsrep_log_conficts.result

+CREATE TABLE t1 (
+f1 VARCHAR(255) PRIMARY KEY
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+INSERT INTO t1 VALUES ('abc');
+SELECT f1 = 'abc' FROM t1;
+f1 = 'abc'
+1
+SET AUTOCOMMIT=OFF;
+START TRANSACTION;
+UPDATE t1 SET f1 = 'klm';
+SET AUTOCOMMIT=OFF;
+START TRANSACTION;
+UPDATE t1 SET f1 = 'xyz';
+COMMIT;
+COMMIT;
+ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
+include/assert_grep.inc [cluster conflict due to high priority abort for threads]
+DROP TABLE t1;

mysql-test/suite/galera/t/galera_wsrep_log_conficts-master.opt

+--wsrep_log_conflicts=ON

mysql-test/suite/galera/t/galera_wsrep_log_conficts.test

+#
+# Test --wsrep_log_conflicts=ON
+#
+
+--source include/galera_cluster.inc
+--source include/have_innodb.inc
+
+CREATE TABLE t1 (
+	f1 VARCHAR(255) PRIMARY KEY
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+INSERT INTO t1 VALUES ('abc');
+
+--connection node_2
+SELECT f1 = 'abc' FROM t1;
+
+#
+# Provoke a conflict
+#
+
+--connection node_1
+SET AUTOCOMMIT=OFF;
+START TRANSACTION;
+UPDATE t1 SET f1 = 'klm';
+
+--connection node_2
+SET AUTOCOMMIT=OFF;
+START TRANSACTION;
+UPDATE t1 SET f1 = 'xyz';
+
+--connection node_1
+COMMIT;
+
+--connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2
+--connection node_2a
+--let $wait_condition = SELECT f1 = 'klm' FROM t1;
+--source include/wait_condition.inc
+
+--connection node_2
+--error ER_LOCK_DEADLOCK
+COMMIT;
+
+#
+# We can not really check the log output very much because it is quite variable
+#
+
+--let $assert_file = $MYSQLTEST_VARDIR/log/mysqld.2.err
+--let $assert_only_after = CURRENT_TEST
+
+--let $assert_text = cluster conflict due to high priority abort for threads
+--let $assert_select = cluster conflict due to high priority abort for threads
+--let $assert_match = cluster conflict due to high priority abort for threads
+--source include/assert_grep.inc
+
+DROP TABLE t1;