135 lines
4.8 KiB
Plaintext
135 lines
4.8 KiB
Plaintext
############################################################
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# Purpose: WL#5064 Testing with corrupted events.
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# The test emulates the corruption at the vary stages
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# of replication:
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# - in binlog file
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# - in network
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# - in relay log
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############################################################
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#
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# The tests intensively utilize @@global.debug. Note,
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# Bug#11765758 - 58754,
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# @@global.debug is read by the slave threads through dbug-interface.
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# Hence, before a client thread set @@global.debug we have to ensure that:
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# (a) the slave threads are stopped, or (b) the slave threads are in
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# sync and waiting.
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--source include/not_group_replication_plugin.inc
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--source include/have_debug.inc
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--source include/master-slave.inc
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# Block legal errors for MTR
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call mtr.add_suppression('Found invalid event in binary log');
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call mtr.add_suppression("Slave I/O for channel '': Relay log write failure: could not queue event from master");
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call mtr.add_suppression('event read from binlog did not pass crc check');
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call mtr.add_suppression('Replication event checksum verification failed');
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call mtr.add_suppression('Event crc check failed! Most likely there is event corruption');
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call mtr.add_suppression("Slave SQL for channel '': Error initializing relay log position: I/O error reading event at position .*, Error_code: MY-013117");
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SET @old_master_verify_checksum = @@master_verify_checksum;
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# Creating test table/data and set corruption position for testing
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--echo # 1. Creating test table/data and set corruption position for testing
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--connection master
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--echo * insert/update/delete rows in table t1 *
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# Corruption algorithm modifies only the first event and
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# then will be reset. To avoid checking always the first event
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# from binlog (usually it is FD) we randomly execute different
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# statements and set position for corruption inside events.
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CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY, b VARCHAR(10), c VARCHAR(100));
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--disable_query_log
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let $i=`SELECT 3+CEILING(10*RAND())`;
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let $j=1;
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let $pos=0;
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while ($i) {
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eval INSERT INTO t1 VALUES ($j, 'a', NULL);
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if (`SELECT RAND() > 0.7`)
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{
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eval UPDATE t1 SET c = REPEAT('a', 20) WHERE a = $j;
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}
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if (`SELECT RAND() > 0.8`)
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{
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eval DELETE FROM t1 WHERE a = $j;
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}
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if (!$pos) {
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let $pos= query_get_value(SHOW MASTER STATUS, Position, 1);
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--source include/sync_slave_sql_with_master.inc
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--source include/stop_slave.inc
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--disable_query_log
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--connection master
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}
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dec $i;
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inc $j;
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}
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--enable_query_log
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# Emulate corruption in binlog file when SHOW BINLOG EVENTS is executing
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--echo # 2. Corruption in master binlog and SHOW BINLOG EVENTS
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SET GLOBAL debug="d,corrupt_read_log_event";
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--echo SHOW BINLOG EVENTS;
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--disable_query_log
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send_eval SHOW BINLOG EVENTS FROM $pos;
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--enable_query_log
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--error ER_ERROR_WHEN_EXECUTING_COMMAND
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reap;
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# Emulate corruption on master with crc checking on master
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--echo # 3. Master read a corrupted event from binlog and send the error to slave
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SET GLOBAL debug="d,corrupt_read_log_event";
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--connection slave
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START SLAVE IO_THREAD;
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let $slave_io_errno= 13114; # ER_SERVER_MASTER_FATAL_ERROR_READING_BINLOG
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--source include/wait_for_slave_io_error.inc
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--connection master
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# Emulate corruption on master without crc checking on master
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--echo # 4. Master read a corrupted event from binlog and send it to slave
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--connection master
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SET GLOBAL master_verify_checksum=0;
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SET GLOBAL debug="d,corrupt_read_log_event";
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--connection slave
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START SLAVE IO_THREAD;
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let $slave_io_errno= 13122,13115; # ER_SLAVE_RELAY_LOG_WRITE_FAILURE, ER_NETWORK_READ_EVENT_CHECKSUM_FAILURE
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--source include/wait_for_slave_io_error.inc
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--connection master
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SET GLOBAL debug="";
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SET GLOBAL master_verify_checksum=1;
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# Emulate corruption in network
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--echo # 5. Slave. Corruption in network
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--connection slave
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SET GLOBAL debug="d,corrupt_queue_event";
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START SLAVE IO_THREAD;
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let $slave_io_errno= 13122,13115; # ER_SLAVE_RELAY_LOG_WRITE_FAILURE, ER_NETWORK_READ_EVENT_CHECKSUM_FAILURE
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--source include/wait_for_slave_io_error.inc
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# Emulate corruption in relay log
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--echo # 6. Slave. Corruption in relay log
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SET GLOBAL debug="d,corrupt_read_log_event";
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START SLAVE SQL_THREAD;
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let $slave_sql_errno= 13117; # ER_SLAVE_FATAL_ERROR
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--source include/wait_for_slave_sql_error.inc
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# Start normal replication and compare same table on master
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# and slave
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--echo # 7. Seek diff for tables on master and slave
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--connection slave
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SET GLOBAL debug= "";
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--source include/start_slave.inc
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--connection master
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--source include/sync_slave_sql_with_master.inc
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--let $diff_tables= master:t1, slave:t1
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--source include/diff_tables.inc
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# Clean up
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--echo # 8. Clean up
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--connection master
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SET GLOBAL master_verify_checksum = @old_master_verify_checksum;
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DROP TABLE t1;
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--source include/sync_slave_sql_with_master.inc
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--source include/rpl_end.inc
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