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# ==== Purpose ==== # # This test will issue a CHANGE MASTER TO MASTER_DELAY while both replication # threads are stopped and there are content received by the I/O thread yet to # be applied by the SQL thread. # # The test case verifies that issuing the CHANGE MASTER will not purge the # relay log, and the replica will not lose master contents. # # ==== Related Bugs and Worklogs ==== # # BUG#23203678 CHANGING MASTER_DELAY AFTER STOP SLAVE RESULTS IN LOSS OF EVENTS # # This test case is binary log format agnostic --source include/have_binlog_format_mixed.inc --source include/master-slave.inc CREATE TABLE t1 (c1 int); --source include/sync_slave_sql_with_master.inc --source include/stop_slave_sql.inc --source include/rpl_connection_master.inc INSERT INTO t1 VALUES (1); --source include/sync_slave_io_with_master.inc # As a workaround, not stopping the I/O thread on line below would # prevent the slave from purging the relay log. --source include/stop_slave_io.inc CHANGE MASTER TO MASTER_DELAY=1; --source include/start_slave.inc --source include/rpl_connection_master.inc --source include/sync_slave_sql_with_master.inc --let $inserted_value=query_get_value(SELECT * FROM t1, c1, 1) --let $assert_text= Assert that the \$inserted_value is equal to 1 --let $assert_cond= "$inserted_value" = "1" --source include/assert.inc # Clean up --source include/stop_slave.inc CHANGE MASTER TO MASTER_DELAY=0; --source include/start_slave.inc --source include/rpl_connection_master.inc DROP TABLE t1; --source include/rpl_end.inc