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############################################################################### # Bug#17812024 MTS IS NOT ABLE TO REPRODUCE BINLOGS AS RELAY LOGS # Problem: When a binarylog is used as a relaylog (transfer binarylogs to # Slave machine to avoid I/O thread reading delay), MTS is unable to operate # on that kind of relaylog. # Steps to Reproduce: # 1) Prepare a binary log with some 3 sample GTIDs # 2) Make that binary log as relay log # 3) Set slave_parallel_workers to 1 and start worker thread # 4) Make sure everything is replicated ############################################################################### --source include/not_group_replication_plugin.inc --source include/have_gtid.inc --source include/have_binlog_format_statement.inc --source include/master-slave.inc # Initial setup --let $MYSQLD_MASTER_DATADIR= `select @@datadir` --connection slave --let $MYSQLD_SLAVE_DATADIR= `select @@datadir` --source include/stop_slave_sql.inc # Step-1: Prepare a binary log with 3 sample GTIDs --connection master CREATE TABLE t1(i INT); INSERT INTO t1 values (1); INSERT INTO t1 values (2); --source include/sync_slave_io_with_master.inc # Step-2: Make that binary log as relay log --remove_file $MYSQLD_SLAVE_DATADIR/slave-relay-bin.000001 --copy_file $MYSQLD_MASTER_DATADIR/master-bin.000001 $MYSQLD_SLAVE_DATADIR/slave-relay-bin.000001 # Step-3: Now start worker thread with that relay log(binary log as relay log) # and see that worker thread does not have issues in completing it. SET @save.slave_parallel_workers=@@global.slave_parallel_workers; SET @@global.slave_parallel_workers=1; SET @save.slave_transaction_retries=@@global.slave_transaction_retries; SET @@global.slave_transaction_retries=0; --source include/start_slave_sql.inc # Step-4: Make sure everything is replicated --connection master --source include/sync_slave_sql_with_master.inc --let diff_tables=master:t1,slave:t1 --source include/diff_tables.inc # Cleanup --connection master DROP TABLE t1; --connection slave --source include/stop_slave_sql.inc SET @@[email protected]_parallel_workers; SET @@[email protected]_transaction_retries; --source include/start_slave_sql.inc --source include/rpl_end.inc