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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>
28 lines
682 B
Plaintext
28 lines
682 B
Plaintext
include/master-slave.inc
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[connection master]
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connection slave;
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include/stop_slave.inc
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connection master;
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include/rpl_stop_server.inc [server_number=1]
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# Data in binlog
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# CREATE TABLE t1 (a INT);
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# INSERT INTO t1 VALUES (1),(2),(3);
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# REPLACE INTO t1 VALUES (4);
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include/rpl_start_server.inc [server_number=1]
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connection slave;
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RESET SLAVE;
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RESET MASTER;
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CHANGE MASTER TO master_host='127.0.0.1', master_port=SERVER_MYPORT_1, master_user='root', master_log_file='master-bin.000001', master_log_pos=4, master_use_gtid=no;
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include/start_slave.inc
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DESC t1;
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Field Type Null Key Default Extra
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a int(11) YES NULL
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SELECT * FROM t1 ORDER BY a;
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a
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1
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2
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3
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4
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DROP TABLE t1;
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include/rpl_end.inc
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