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SET autocommit=1 while XA transaction is active may cause various side effects, including memory corruption and server crash. The problem is that SET autocommit=1 and further queries attempt to commit local transaction, whereas XA transaction is still active. As local and XA transactions are mutually exclusive, this patch forbids enabling autocommit mode while XA transaction is active.
95 lines
2.9 KiB
Plaintext
95 lines
2.9 KiB
Plaintext
drop table if exists t1, t2;
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create table t1 (a int) engine=innodb;
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xa start 'test1';
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insert t1 values (10);
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xa end 'test1';
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xa prepare 'test1';
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xa rollback 'test1';
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select * from t1;
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a
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xa start 'test2';
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xa start 'test-bad';
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ERROR XAE07: XAER_RMFAIL: The command cannot be executed when global transaction is in the ACTIVE state
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insert t1 values (20);
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xa prepare 'test2';
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ERROR XAE07: XAER_RMFAIL: The command cannot be executed when global transaction is in the ACTIVE state
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xa end 'test2';
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xa prepare 'test2';
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xa commit 'test2';
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select * from t1;
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a
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20
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xa start 'testa','testb';
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insert t1 values (30);
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commit;
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ERROR XAE07: XAER_RMFAIL: The command cannot be executed when global transaction is in the ACTIVE state
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xa end 'testa','testb';
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begin;
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ERROR XAE07: XAER_RMFAIL: The command cannot be executed when global transaction is in the IDLE state
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create table t2 (a int);
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ERROR XAE07: XAER_RMFAIL: The command cannot be executed when global transaction is in the IDLE state
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xa start 'testa','testb';
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ERROR XAE08: XAER_DUPID: The XID already exists
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xa start 'testa','testb', 123;
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ERROR XAE08: XAER_DUPID: The XID already exists
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xa start 0x7465737462, 0x2030405060, 0xb;
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insert t1 values (40);
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xa end 'testb',' 0@P`',11;
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xa prepare 'testb',0x2030405060,11;
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start transaction;
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ERROR XAE07: XAER_RMFAIL: The command cannot be executed when global transaction is in the PREPARED state
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xa recover;
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formatID gtrid_length bqual_length data
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11 5 5 testb 0@P`
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xa prepare 'testa','testb';
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xa recover;
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formatID gtrid_length bqual_length data
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11 5 5 testb 0@P`
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1 5 5 testatestb
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xa commit 'testb',0x2030405060,11;
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ERROR XAE04: XAER_NOTA: Unknown XID
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xa rollback 'testa','testb';
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xa start 'zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz';
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
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select * from t1;
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a
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20
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drop table t1;
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drop table if exists t1;
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create table t1(a int, b int, c varchar(20), primary key(a)) engine = innodb;
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insert into t1 values(1, 1, 'a');
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insert into t1 values(2, 2, 'b');
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xa start 'a','b';
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update t1 set c = 'aa' where a = 1;
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xa start 'a','c';
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update t1 set c = 'bb' where a = 2;
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update t1 set c = 'bb' where a = 2;
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update t1 set c = 'aa' where a = 1;
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ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
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select count(*) from t1;
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count(*)
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2
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xa end 'a','c';
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ERROR XA102: XA_RBDEADLOCK: Transaction branch was rolled back: deadlock was detected
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xa rollback 'a','c';
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xa start 'a','c';
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drop table t1;
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#
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# BUG#51342 - more xid crashing
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#
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CREATE TABLE t1(a INT) ENGINE=InnoDB;
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XA START 'x';
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SET SESSION autocommit=0;
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INSERT INTO t1 VALUES(1);
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SET SESSION autocommit=1;
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ERROR XAE07: XAER_RMFAIL: The command cannot be executed when global transaction is in the ACTIVE state
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SELECT @@autocommit;
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@@autocommit
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0
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INSERT INTO t1 VALUES(1);
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XA END 'x';
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XA COMMIT 'x' ONE PHASE;
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DROP TABLE t1;
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SET SESSION autocommit=DEFAULT;
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End of 5.0 tests
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