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# # Bug#20872655 XA ROLLBACK IS NOT CRASH-SAFE # CREATE TABLE t(a INT PRIMARY KEY, b INT UNIQUE) ENGINE=INNODB; XA START 'zombie'; insert into t(a) values (0); update t set b=a; SELECT COUNT(*) FROM t; COUNT(*) 1 XA END 'zombie'; XA PREPARE 'zombie'; SET DEBUG_SYNC='trx_xa_rollback SIGNAL s1 WAIT_FOR s2'; XA ROLLBACK 'zombie'; SET DEBUG_SYNC='now WAIT_FOR s1'; SET GLOBAL innodb_log_checkpoint_now=ON; # Kill and restart XA COMMIT 'zombie'; ERROR XAE04: XAER_NOTA: Unknown XID SELECT COUNT(*) FROM t; COUNT(*) 0 DROP TABLE t;