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5ab5ff08b0
This commit makes replicas crash-safe by default by changing the Using_Gtid value to be Slave_Pos on a fresh slave start and after RESET SLAVE is issued. If the primary server does not support GTIDs (i.e., version < 10), the replica will fall back to Using_Gtid=No on slave start and after RESET SLAVE. The following additional informational messages/warnings are added: 1. When Using_Gtid is automatically changed. That is, if RESET SLAVE reverts Using_Gtid back to Slave_Pos, or Using_Gtid is inferred to No from a CHANGE MASTER TO given with log coordinates without MASTER_USE_GTID. 2. If options are ignored in CHANGE MASTER TO. If CHANGE MASTER TO is given with log coordinates, yet also specifies MASTER_USE_GTID=Slave_Pos, a warning message is given that the log coordinate options are ignored. Additionally, an MTR macro has been added for RESET SLAVE, reset_slave.inc, which provides modes/options for resetting a slave in log coordinate or gtid modes. When in log coordinates mode, the macro will execute CHANGE MASTER TO MASTER_USE_GTID=No after the RESET SLAVE command. When in GTID mode, an extra parameter, reset_slave_keep_gtid_state, can be set to reset or preserve the value of gtid_slave_pos. Reviewed By: =========== Andrei Elkin <andrei.elkin@mariadb.com>
91 lines
3 KiB
Text
91 lines
3 KiB
Text
###############################################################################
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# Bug#24901077: RESET SLAVE ALL DOES NOT ALWAYS RESET SLAVE
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#
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# Problem:
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# =======
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# If you have a relay log index file that has ended up with
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# some relay log files that do not exists, then RESET SLAVE
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# ALL is not enough to get back to a clean state.
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###############################################################################
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# Remove all slave-relay-bin.0* files (do not remove slave-relay-bin.index)
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# During server restart rli initialization will fail as there are no
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# relay logs. In case of bug RESET SLAVE will not do the required clean up
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# as rli is not inited and subsequent START SLAVE will fail.
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# Disable "Warning 1612 Being purged log ./slave-relay-bin.0* was not found"
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# because it is different on Unix and Windows systems.
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--source include/have_binlog_format_mixed.inc
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--source include/master-slave.inc
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--connection master
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CREATE TABLE t1 (c1 INT);
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INSERT INTO t1 (c1) VALUES (1);
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--sync_slave_with_master
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--connection slave
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--source include/stop_slave_sql.inc
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--let $MYSQLD_SLAVE_DATADIR= `select @@datadir`
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--connection master
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# Generate more relay logs on slave.
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FLUSH LOGS;
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FLUSH LOGS;
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INSERT INTO t1 (c1) VALUES (2);
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--source include/sync_slave_io_with_master.inc
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call mtr.add_suppression("File '.*slave-relay-bin.");
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call mtr.add_suppression("Could not open log file");
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call mtr.add_suppression("Failed to open the relay log");
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call mtr.add_suppression("Failed to initialize the master info structure");
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# Stop slave
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--let $rpl_server_number= 2
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--source include/rpl_stop_server.inc
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# Delete file(s)
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--echo # Removing $remove_pattern file(s)
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--let $remove_pattern= slave-relay-bin.0*
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--remove_files_wildcard $MYSQLD_SLAVE_DATADIR $remove_pattern
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# Start slave
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--let $rpl_server_number= 2
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--source include/rpl_start_server.inc
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# Start slave must fail because of the removed file(s).
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--error ER_MASTER_INFO
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START SLAVE;
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# Try a second time, it must fail again.
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--error ER_MASTER_INFO
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START SLAVE;
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# Retrieve master executed position before reset slave.
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--let $master_exec_file= query_get_value("SHOW SLAVE STATUS", Relay_Master_Log_File, 1)
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--let $master_exec_pos= query_get_value("SHOW SLAVE STATUS", Exec_Master_Log_Pos, 1)
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# Reset slave.
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# Disable "Warning 1612 Being purged log ./slave-relay-bin.0* was not found"
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# because it is different on Unix and Windows systems.
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--disable_warnings
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--source include/reset_slave.inc
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--enable_warnings
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DROP TABLE t1;
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--replace_result $master_exec_file MASTER_LOG_FILE $master_exec_pos MASTER_LOG_POS
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--eval START SLAVE UNTIL MASTER_LOG_FILE= '$master_exec_file', MASTER_LOG_POS= $master_exec_pos;
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--source include/wait_for_slave_sql_to_stop.inc
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--source include/stop_slave_io.inc
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# Start slave.
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--source include/start_slave.inc
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--connection master
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--sync_slave_with_master
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# Check consistency.
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--let $diff_tables= master:t1, slave:t1
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--source include/diff_tables.inc
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# Cleanup
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--connection master
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DROP TABLE t1;
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--sync_slave_with_master
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--source include/rpl_end.inc
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