--source include/galera_cluster.inc --source include/have_innodb.inc --connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1 # # Test 1: statement rollback is not safe. # Statement has already replicated some fragments # --connection node_1 SET SESSION wsrep_trx_fragment_size = 1; CREATE TABLE t1 (f1 INTEGER PRIMARY KEY); CREATE TABLE t2 (f1 INTEGER PRIMARY KEY); INSERT INTO t2 VALUES (1),(2),(3); ALTER TABLE t2 DROP PRIMARY KEY; INSERT INTO t2 VALUES (1); SET SESSION wsrep_trx_fragment_size = 1; START TRANSACTION; # The following INSERT .. SELECT inserts a duplicate key, # ER_LOCK_DEADLOCK is the only possible outcome at this point. # Notice that ER_DUP_ENTRY is NOT an option here because we were # forced to rollback the whole transaction (not just the statement) --error ER_LOCK_DEADLOCK INSERT INTO t1 SELECT * FROM t2; SELECT * FROM t1; --connection node_2 SELECT * FROM t1; --connection node_1 DROP TABLE t1; DROP TABLE t2; # # Test 2: statement rollback is safe. # Fragments were already replicated, not in the same statement # CREATE TABLE t1 (f1 INTEGER PRIMARY KEY AUTO_INCREMENT, f2 CHAR(10)) ENGINE=InnoDB; --connection node_1 SET SESSION wsrep_trx_fragment_size = 1; START TRANSACTION; INSERT INTO t1 VALUES (1, 'node1'); --connection node_1a INSERT INTO t1 VALUES (5, 'node2'); --connection node_1 # Only the statement is rolled back, expect ER_DUP_ENTRY --error ER_DUP_ENTRY INSERT INTO t1 VALUES (5, 'node1'); SELECT * FROM t1; # # Test 3: statement rollback is safe # No fragments have been replicated # SET SESSION wsrep_trx_fragment_size = 10000; START TRANSACTION; INSERT INTO t1 VALUE (10, 'node1'); SELECT * FROM mysql.wsrep_streaming_log; --connection node_1a INSERT INTO t1 VALUES(15, 'node2'); --connection node_1 SELECT * FROM t1; # This time, only the statement is rolled back and we expect ER_DUP_ENTRY. --error ER_DUP_ENTRY INSERT INTO t1 VALUES(15, 'node1'); COMMIT; SELECT * FROM t1; DROP TABLE t1;