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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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60
mysql-test/suite/rpl/t/rpl_parallel_retry.test
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@ -149,6 +149,64 @@ STOP SLAVE IO_THREAD;
--sync_with_master
SELECT * FROM t1 ORDER BY a;
--echo *** Test retry of event group that spans multiple relay log files. ***
--connection server_1
CREATE TABLE t2 (a int PRIMARY KEY, b BLOB) ENGINE=InnoDB;
INSERT INTO t2 VALUES (1,"Hulubullu");
--save_master_pos
--connection server_2
--sync_with_master
--source include/stop_slave.inc
SET @old_max= @@GLOBAL.max_relay_log_size;
SET GLOBAL max_relay_log_size=4096;
--connection server_1
--let $big= `SELECT REPEAT("*", 5000)`
SET gtid_seq_no = 100;
SET @old_server_id = @@server_id;
SET server_id = 12;
BEGIN;
--disable_query_log
eval INSERT INTO t2 VALUES (2, CONCAT("Hello ", "$big"));
eval INSERT INTO t2 VALUES (3, CONCAT("Long data: ", "$big"));
--enable_query_log
INSERT INTO t1 VALUES (10, 4);
COMMIT;
SET server_id = @old_server_id;
SELECT * FROM t1 WHERE a >= 10 ORDER BY a;
SELECT a, LENGTH(b) FROM t2 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";
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 - $old_retry AS retries;
--enable_query_log
SELECT * FROM t1 WHERE a >= 10 ORDER BY a;
SELECT a, LENGTH(b) FROM t2 ORDER BY a;
--connection server_1
INSERT INTO t1 VALUES (11,11);
--disable_query_log
eval INSERT INTO t2 VALUES (4, "$big");
--enable_query_log
--save_master_pos
--connection server_2
--sync_with_master
SELECT * FROM t1 WHERE a >= 10 ORDER BY a;
SELECT a, LENGTH(b) FROM t2 ORDER BY a;
SET GLOBAL max_relay_log_size=@old_max;
--connection server_2
--source include/stop_slave.inc
@ -156,7 +214,7 @@ SET GLOBAL slave_parallel_threads=@old_parallel_threads;
--source include/start_slave.inc
--connection server_1
DROP TABLE t1;
DROP TABLE t1, t2;
DROP function foo;
--source include/rpl_end.inc