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MDEV-5262: Missing retry after temp error in parallel replication

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Handle retry of event groups that span multiple relay log files.

 - If retry reaches the end of one relay log file, move on to the next.

 - Handle refcounting of relay log files, and avoid purging relay log
   files until all event groups have completed that might have needed
   them for transaction retry.
This commit is contained in:
unknown
2014-05-15 15:52:08 +02:00
committed by Kristian Nielsen
parent d60915692c
commit 787c470cef
8 changed files with 269 additions and 49 deletions
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49
mysql-test/suite/rpl/r/rpl_parallel_retry.result
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@ -141,9 +141,56 @@ a b
7 1
8 1
9 1
*** Test retry of event group that spans multiple relay log files. ***
CREATE TABLE t2 (a int PRIMARY KEY, b BLOB) ENGINE=InnoDB;
INSERT INTO t2 VALUES (1,"Hulubullu");
include/stop_slave.inc
SET @old_max= @@GLOBAL.max_relay_log_size;
SET GLOBAL max_relay_log_size=4096;
SET gtid_seq_no = 100;
SET @old_server_id = @@server_id;
SET server_id = 12;
BEGIN;
INSERT INTO t1 VALUES (10, 4);
COMMIT;
SET server_id = @old_server_id;
SELECT * FROM t1 WHERE a >= 10 ORDER BY a;
a b
10 4
SELECT a, LENGTH(b) FROM t2 ORDER BY a;
a LENGTH(b)
1 9
2 5006
3 5012
SET @old_dbug= @@GLOBAL.debug_dbug;
SET GLOBAL debug_dbug="+d,rpl_parallel_simulate_temp_err_gtid_0_x_100";
include/start_slave.inc
SET GLOBAL debug_dbug=@old_dbug;
retries
1
SELECT * FROM t1 WHERE a >= 10 ORDER BY a;
a b
10 4
SELECT a, LENGTH(b) FROM t2 ORDER BY a;
a LENGTH(b)
1 9
2 5006
3 5012
INSERT INTO t1 VALUES (11,11);
SELECT * FROM t1 WHERE a >= 10 ORDER BY a;
a b
10 4
11 11
SELECT a, LENGTH(b) FROM t2 ORDER BY a;
a LENGTH(b)
1 9
2 5006
3 5012
4 5000
SET GLOBAL max_relay_log_size=@old_max;
include/stop_slave.inc
SET GLOBAL slave_parallel_threads=@old_parallel_threads;
include/start_slave.inc
DROP TABLE t1;
DROP TABLE t1, t2;
DROP function foo;
include/rpl_end.inc