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a81e21f8a4
1. Test case was rewritten completely. 2. Test covers 3 cases: a) do deadlock on slave, wait retries of transaction, unlock slave before lock timeout; b) do deadlock on slave and wait error 'lock timeout exceed' on slave; c) same as b) but if of max relay log size = 0; 3. Added comments inline. 4. Updated result file.
132 lines
3.9 KiB
Text
132 lines
3.9 KiB
Text
# See if slave restarts the transaction after failing on an InnoDB deadlock error.
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# Note: testing what happens when too many retries is possible, but
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# needs large waits when running with --debug, so we don't do it.
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# The same way, this test may not test what is expected when run
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# under Valgrind, timings are too short then (with --valgrind I
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# (Guilhem) have seen the test manage to provoke lock wait timeout
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# error but not deadlock error; that is ok as code deals with the two
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# errors in exactly the same way.
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--source include/master-slave.inc
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# 0) Prepare tables and data
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--echo *** Prepare tables and data ***
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connection master;
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eval CREATE TABLE t1 (a INT NOT NULL, KEY(a)) ENGINE=$engine_type;
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eval CREATE TABLE t2 (a INT) ENGINE=$engine_type;
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eval CREATE TABLE t3 (a INT NOT NULL, KEY(a)) ENGINE=$engine_type;
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sync_slave_with_master;
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SHOW CREATE TABLE t1;
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SHOW CREATE TABLE t2;
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SHOW CREATE TABLE t3;
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SHOW VARIABLES LIKE 'slave_transaction_retries';
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--source include/stop_slave.inc
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connection master;
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BEGIN;
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INSERT INTO t1 VALUES (1);
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# We make a long transaction here
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INSERT INTO t2 VALUES (2), (2), (2), (2), (2), (2), (2), (2), (2), (2);
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INSERT INTO t3 VALUES (3);
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COMMIT;
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save_master_pos;
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# Save BEGIN event into variable
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let $master_pos_begin= query_get_value(SHOW BINLOG EVENTS, Pos, 5);
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--echo
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# 1) Test deadlock
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# Block slave SQL thread, wait retries of transaction, unlock slave before lock timeout
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--echo *** Test deadlock ***
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connection slave;
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BEGIN;
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SELECT * FROM t1 FOR UPDATE;
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# Save variable 'Slave_retried_transactions' before deadlock
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let $slave_retried_transactions= query_get_value(SHOW GLOBAL STATUS LIKE 'Slave_retried_transactions', Value, 1);
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START SLAVE;
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# Wait until SQL thread blocked: variable 'Slave_retried_transactions' will incremented
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let $status_var= Slave_retried_transactions;
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let $status_var_value= $slave_retried_transactions;
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let $status_type= GLOBAL;
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let $status_var_comparsion= >;
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--source include/wait_for_status_var.inc
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SELECT COUNT(*) FROM t2;
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COMMIT;
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sync_with_master;
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# Check the data
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SELECT * FROM t1;
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SELECT * FROM t3;
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# Check that no error is reported
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--source include/show_slave_status2.inc
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--echo
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# 2) Test lock wait timeout
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# Block slave and wait lock timeout error
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--echo *** Test lock wait timeout ***
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connection slave;
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--source include/stop_slave.inc
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DELETE FROM t2;
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# Set slave position to the BEGIN log event
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--replace_result $master_pos_begin MASTER_POS_BEGIN
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eval CHANGE MASTER TO MASTER_LOG_POS=$master_pos_begin;
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BEGIN;
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# Hold lock
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SELECT * FROM t1 FOR UPDATE;
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# Wait until slave stopped with error 'Lock wait timeout exceeded'
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START SLAVE;
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let $slave_sql_errno= 1205;
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--source include/wait_for_slave_sql_error.inc
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SELECT COUNT(*) FROM t2;
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COMMIT;
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--source include/start_slave.inc
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sync_with_master;
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# Check data from tables
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SELECT * FROM t1;
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SELECT * FROM t3;
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# Check that no error is reported
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--source include/show_slave_status2.inc
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--echo
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# 3) Test lock wait timeout and purged relay log
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# Set max_relay_log_size=0, block slave and wait lock timeout error.
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# Restart slave and check that no erros appear
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--echo *** Test lock wait timeout and purged relay logs ***
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connection slave;
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SET @my_max_relay_log_size= @@global.max_relay_log_size;
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SET global max_relay_log_size=0;
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--source include/stop_slave.inc
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DELETE FROM t2;
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# Set slave position to the BEGIN log event
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eval CHANGE MASTER TO MASTER_LOG_POS=$master_pos_begin;
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BEGIN;
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# Hold lock
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SELECT * FROM t1 FOR UPDATE;
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# Wait until slave stopped with error 'Lock wait timeout exceeded'
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START SLAVE;
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let $slave_sql_errno= 1205;
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--source include/wait_for_slave_sql_error.inc
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SELECT COUNT(*) FROM t2;
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COMMIT;
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--source include/start_slave.inc
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sync_with_master;
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# Check data from tables
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SELECT * FROM t1;
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SELECT * FROM t3;
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# Check that no error is reported
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--source include/show_slave_status2.inc
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--echo
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# Clean up
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--echo *** Clean up ***
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connection master;
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DROP TABLE t1,t2,t3;
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sync_slave_with_master;
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SET global max_relay_log_size= @my_max_relay_log_size;
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--echo End of 5.1 tests
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