# # Bug#20872655 XA ROLLBACK IS NOT CRASH-SAFE # CREATE TABLE t(a INT PRIMARY KEY, b INT UNIQUE) ENGINE=INNODB; INSERT INTO t SET a=0; connect con1,localhost,root; XA START 'zombie'; INSERT INTO t SET a=1; UPDATE t SET b=1 WHERE a=1; SELECT COUNT(*) FROM t; COUNT(*) 2 XA END 'zombie'; XA PREPARE 'zombie'; SET DEBUG_SYNC='trx_after_rollback_row SIGNAL s1 WAIT_FOR s2'; XA ROLLBACK 'zombie'; connection default; SET DEBUG_SYNC='now WAIT_FOR s1'; SET GLOBAL innodb_flush_log_at_trx_commit=1; DELETE FROM t LIMIT 1; # restart disconnect con1; XA COMMIT 'zombie'; ERROR XAE04: XAER_NOTA: Unknown XID SELECT * FROM t; a b DROP TABLE t;