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innodb_autoinc_lock_mode = 2 innodb_buffer_pool_dump_at_shutdown = ON innodb_buffer_pool_dump_pct = 25 innodb_buffer_pool_load_at_startup = ON innodb_checksum_algorithm = CRC32 innodb_file_format = Barracuda innodb_large_prefix = ON innodb_log_compressed_pages = ON innodb_purge_threads = 4 innodb_strict_mode = ON binlog_annotate_row_events = ON binlog_format = MIXED binlog-row-event-max-size = 8192 group_concat_max_len = 1M lock_wait_timeout = 86400 log_slow_admin_statements = ON log_slow_slave_statements = ON log_warnings = 2 max_allowed_packet = 16M replicate_annotate_row_events = ON slave_net_timeout = 60 sync_binlog = 1 aria_recover = BACKUP,QUICK myisam_recover_options = BACKUP,QUICK
80 lines
2.6 KiB
Plaintext
80 lines
2.6 KiB
Plaintext
--source include/have_innodb.inc
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--source include/master-slave.inc
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call mtr.add_suppression("Deadlock found when trying to get lock; try restarting transaction");
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--echo *** Provoke a deadlock on the slave, check that transaction retry succeeds. ***
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--connection master
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CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=InnoDB;
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CREATE TABLE t2 (a INT) ENGINE=InnoDB;
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INSERT INTO t1(a) VALUES (1), (2), (3), (4), (5);
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--sync_slave_with_master
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SELECT * FROM t1 ORDER BY a;
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# Use MyISAM for t2 on the slave, so we have a way to see how far the
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# slave replication thread has proceeded in the transaction.
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SET sql_log_bin=0;
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ALTER TABLE t2 ENGINE=MyISAM;
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SET sql_log_bin=1;
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let $old_retry= query_get_value(SHOW STATUS LIKE 'Slave_retried_transactions', Value, 1);
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# Setup a separate connection that can deadlock with the replication thread.
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# Docs say that InnoDB will try to roll back the smaller transaction. So
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# let us make this transaction a big one, so the one in the replication
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# thread will be selected for rollback and retry.
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--connect (con_temp1,127.0.0.1,root,,test,$SERVER_MYPORT_2,)
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--connection con_temp1
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BEGIN;
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UPDATE t1 SET b=2 WHERE a=4;
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--disable_query_log
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--let $count=200
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while ($count)
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{
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eval INSERT INTO t1(a) VALUES ($count + 10);
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dec $count;
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}
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--enable_query_log
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# Note that InnoDB also (undocumented?) tries to avoid rolling back a
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# "transaction" that modified non-transactional tables. So be sure to also
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# touch the MyISAM table in this transaction.
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INSERT INTO t2 VALUES (2);
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DELETE FROM t2 WHERE a=2;
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# Create the transaction that should participate in the deadlock on the slave.
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--connection master
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BEGIN;
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UPDATE t1 SET b=1 WHERE a=2;
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INSERT INTO t2 VALUES (1);
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UPDATE t1 SET b=1 WHERE a=4;
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COMMIT;
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--save_master_pos
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--connection slave
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# Wait until replication thread has gone to wait on the a=4 row lock.
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--let $wait_condition= SELECT COUNT(*) = 1 FROM t2 WHERE a=1
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--source include/wait_condition.inc
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# Now provoke the deadlock by waiting on the a=2 row lock while the
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# other thread is waiting for our a=4 row lock.
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--connection con_temp1
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UPDATE t1 SET b=2 WHERE a=2;
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SELECT * FROM t1 WHERE a<10 ORDER BY a;
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ROLLBACK;
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--connection slave
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--sync_with_master
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SELECT * FROM t1 ORDER BY a;
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--echo * There will be two rows in t2 due to the retry.
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SELECT * FROM t2 ORDER BY a;
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let $new_retry= query_get_value(SHOW STATUS LIKE 'Slave_retried_transactions', Value, 1);
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--disable_query_log
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eval SELECT $new_retry - $old_retry AS retries;
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--enable_query_log
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--let $status_items= Last_SQL_Errno, Last_SQL_Error
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--source include/show_slave_status.inc
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--connection master
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DROP TABLE t1;
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DROP TABLE t2;
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--source include/rpl_end.inc
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