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MDEV-7335: Potential parallel slave deadlock with specific binlog corruption

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If somehow the COMMIT or XID event in an event group was missing, the code in
parallel replication to handle this was not sufficient, leading to server
deadlock.
This commit is contained in:
Kristian Nielsen
2015-02-24 14:03:14 +01:00
parent 79e9ff44d1
commit a227cf8046
4 changed files with 159 additions and 14 deletions
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74
mysql-test/suite/rpl/r/rpl_parallel.result
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@@ -1136,6 +1136,80 @@ SET GLOBAL debug_dbug=@old_dbug;
SET GLOBAL slave_parallel_threads=0;
SET GLOBAL slave_parallel_threads=10;
include/start_slave.inc
*** MDEV-7335: Potential parallel slave deadlock with specific binlog corruption ***
include/stop_slave.inc
SET GLOBAL slave_parallel_threads=1;
SET @old_dbug= @@GLOBAL.debug_dbug;
SET GLOBAL debug_dbug="+d,slave_discard_xid_for_gtid_0_x_1000";
INSERT INTO t2 VALUES (101);
INSERT INTO t2 VALUES (102);
INSERT INTO t2 VALUES (103);
INSERT INTO t2 VALUES (104);
INSERT INTO t2 VALUES (105);
SET gtid_seq_no=1000;
INSERT INTO t2 VALUES (106);
INSERT INTO t2 VALUES (107);
INSERT INTO t2 VALUES (108);
INSERT INTO t2 VALUES (109);
INSERT INTO t2 VALUES (110);
INSERT INTO t2 VALUES (111);
INSERT INTO t2 VALUES (112);
INSERT INTO t2 VALUES (113);
INSERT INTO t2 VALUES (114);
INSERT INTO t2 VALUES (115);
INSERT INTO t2 VALUES (116);
INSERT INTO t2 VALUES (117);
INSERT INTO t2 VALUES (118);
INSERT INTO t2 VALUES (119);
INSERT INTO t2 VALUES (120);
INSERT INTO t2 VALUES (121);
INSERT INTO t2 VALUES (122);
INSERT INTO t2 VALUES (123);
INSERT INTO t2 VALUES (124);
INSERT INTO t2 VALUES (125);
INSERT INTO t2 VALUES (126);
INSERT INTO t2 VALUES (127);
INSERT INTO t2 VALUES (128);
INSERT INTO t2 VALUES (129);
INSERT INTO t2 VALUES (130);
include/save_master_gtid.inc
include/start_slave.inc
include/sync_with_master_gtid.inc
SELECT * FROM t2 WHERE a >= 100 ORDER BY a;
a
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include/stop_slave.inc
SET GLOBAL debug_dbug=@old_dbug;
SET GLOBAL slave_parallel_threads=10;
include/start_slave.inc
include/stop_slave.inc
SET GLOBAL slave_parallel_threads=@old_parallel_threads;
include/start_slave.inc