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

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Implement that if first retry fails, we can do another attempt.

Add testcases to test multi-retry that succeeds in second attempt, and
multi-retry that eventually fails due to exceeding slave_trans_retries.
This commit is contained in:
unknown
2014-05-13 13:42:06 +02:00
committed by Kristian Nielsen
parent b0b60f2498
commit d60915692c
3 changed files with 217 additions and 36 deletions
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95
mysql-test/suite/rpl/r/rpl_parallel_retry.result
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@ -28,23 +28,21 @@ END IF;
RETURN x;
END
||
SET sql_log_bin=1;
include/stop_slave.inc
SET @old_format= @@SESSION.binlog_format;
SET binlog_format='statement';
SET gtid_seq_no = 100;
BEGIN;
INSERT INTO t1 VALUES (2,1);
UPDATE t1 SET b=b+1 WHERE a=1;
INSERT INTO t1 VALUES (3,1);
COMMIT;
SET binlog_format=@old_format;
SELECT * FROM t1 ORDER BY a;
a b
1 2
2 1
3 1
SET @old_dbug= @@GLOBAL.debug_dbug;
SET GLOBAL debug_dbug="+d,rpl_parallel_simulate_temp_err_gtid_0_1_100";
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
@ -54,6 +52,95 @@ a b
1 2
2 1
3 1
*** Test that double retry works when the first retry also fails with temp error ***
include/stop_slave.inc
SET gtid_seq_no = 100;
SET @old_server_id = @@server_id;
SET server_id = 10;
BEGIN;
INSERT INTO t1 VALUES (4,1);
UPDATE t1 SET b=b+1 WHERE a=1;
INSERT INTO t1 VALUES (5,1);
INSERT INTO t1 VALUES (6,1);
COMMIT;
SET server_id = @old_server_id;
SELECT * FROM t1 ORDER BY a;
a b
1 3
2 1
3 1
4 1
5 1
6 1
SET @old_dbug= @@GLOBAL.debug_dbug;
SET GLOBAL debug_dbug="+d,rpl_parallel_simulate_temp_err_gtid_0_x_100,rpl_parallel_simulate_double_temp_err_gtid_0_x_100";
include/start_slave.inc
SET GLOBAL debug_dbug=@old_dbug;
retries
2
SELECT * FROM t1 ORDER BY a;
a b
1 3
2 1
3 1
4 1
5 1
6 1
*** Test too many retries, eventually causing failure. ***
include/stop_slave.inc
SET gtid_seq_no = 100;
SET @old_server_id = @@server_id;
SET server_id = 11;
BEGIN;
INSERT INTO t1 VALUES (7,1);
UPDATE t1 SET b=b+1 WHERE a=1;
INSERT INTO t1 VALUES (8,1);
INSERT INTO t1 VALUES (9,1);
COMMIT;
SET server_id = @old_server_id;
SELECT * FROM t1 ORDER BY a;
a b
1 4
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
SET sql_log_bin=0;
CALL mtr.add_suppression("Slave worker thread retried transaction 10 time\\(s\\) in vain, giving up");
CALL mtr.add_suppression("Slave: Deadlock found when trying to get lock; try restarting transaction");
SET sql_log_bin=1;
SET @old_dbug= @@GLOBAL.debug_dbug;
SET GLOBAL debug_dbug="+d,rpl_parallel_simulate_temp_err_gtid_0_x_100,rpl_parallel_simulate_infinite_temp_err_gtid_0_x_100";
START SLAVE;
include/wait_for_slave_sql_error.inc [errno=1213]
SET GLOBAL debug_dbug=@old_dbug;
retries
10
SELECT * FROM t1 ORDER BY a;
a b
1 3
2 1
3 1
4 1
5 1
6 1
STOP SLAVE IO_THREAD;
include/start_slave.inc
SELECT * FROM t1 ORDER BY a;
a b
1 4
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
include/stop_slave.inc
SET GLOBAL slave_parallel_threads=@old_parallel_threads;
include/start_slave.inc