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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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85
mysql-test/suite/rpl/t/rpl_parallel_retry.test
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@ -47,27 +47,22 @@ CREATE FUNCTION foo(x INT, d1 VARCHAR(500), d2 VARCHAR(500))
END
||
--delimiter ;
SET sql_log_bin=1;
--source include/stop_slave.inc
--connection server_1
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,foo(1,
# "ha_write_row_end SIGNAL q1_ready WAIT_FOR q1_cont",
# ""));
INSERT INTO t1 VALUES (3,1);
COMMIT;
SET binlog_format=@old_format;
SELECT * FROM t1 ORDER BY a;
--save_master_pos
--connection server_2
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";
let $old_retry= query_get_value(SHOW STATUS LIKE 'Slave_retried_transactions', Value, 1);
--source include/start_slave.inc
--sync_with_master
@ -79,6 +74,82 @@ eval SELECT $new_retry - $old_retry AS retries;
SELECT * FROM t1 ORDER BY a;
--echo *** Test that double retry works when the first retry also fails with temp error ***
--source include/stop_slave.inc
--connection server_1
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;
--save_master_pos
--connection server_2
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";
let $old_retry= query_get_value(SHOW STATUS LIKE 'Slave_retried_transactions', Value, 1);
--source include/start_slave.inc
--sync_with_master
SET GLOBAL debug_dbug=@old_dbug;
let $new_retry= query_get_value(SHOW STATUS LIKE 'Slave_retried_transactions', Value, 1);
--disable_query_log
eval SELECT $new_retry - $old_retry AS retries;
--enable_query_log
SELECT * FROM t1 ORDER BY a;
--echo *** Test too many retries, eventually causing failure. ***
--source include/stop_slave.inc
--connection server_1
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;
--save_master_pos
--connection server_2
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";
let $old_retry= query_get_value(SHOW STATUS LIKE 'Slave_retried_transactions', Value, 1);
START SLAVE;
--let $slave_sql_errno= 1213
--let $slave_timeout= 10
--source include/wait_for_slave_sql_error.inc
SET GLOBAL debug_dbug=@old_dbug;
let $new_retry= query_get_value(SHOW STATUS LIKE 'Slave_retried_transactions', Value, 1);
--disable_query_log
eval SELECT $new_retry - $old_retry AS retries;
--enable_query_log
SELECT * FROM t1 ORDER BY a;
STOP SLAVE IO_THREAD;
--source include/start_slave.inc
--sync_with_master
SELECT * FROM t1 ORDER BY a;
--connection server_2
--source include/stop_slave.inc
SET GLOBAL slave_parallel_threads=@old_parallel_threads;