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Problem: ======== rpl.rpl_slave_alias_replica test fails sporadically on build bot as shown below. rpl.rpl_slave_alias_replica 'innodb,stmt' w4 [ fail ] +++ /usr/local/mariadb-10.5.4-linux-x86_64/mysql-test/suite/rpl/r/ rpl_slave_alias_replica.reject 2020-06-12 09:52:25.191267945 +0000 @@ -22,6 +22,7 @@ SHOW REPLICA HOSTS; Server_id Host Port Master_id 2 127.0.0.1 SLAVE_PORT 1 +2 127.0.0.1 SLAVE_PORT 1 Analysis: ======== The SHOW REPLICA HOSTS command reports an additional row for the same server occasionally. This happens because of zombie dump threads on the master. Error log from master also confirms that "A slave with the same server_uuid/server_id as this slave has connected to the master". Since SHOW REPLICA HOSTS goes through the list of dump threads and reports the corresponding hosts,the same host is reported twice. Fix: === Instead of capturing the SHOW REPLICA HOSTS command in result file use wait_show_condition.inc. This will ensure that SHOW REPLICA HOSTS command fetches slave host details.
55 lines
1.7 KiB
Text
55 lines
1.7 KiB
Text
include/master-slave.inc
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[connection master]
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"Command: STOP SLAVE --> STOP REPLICA"
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connection slave;
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STOP REPLICA;
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include/wait_for_slave_io_to_stop.inc
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include/wait_for_slave_sql_to_stop.inc
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connection master;
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CREATE USER 'repl_user';
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"Privilege: SLAVE --> REPLICA"
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GRANT REPLICATION REPLICA on *.* TO repl_user;
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FLUSH PRIVILEGES;
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connection slave;
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"SHOW SLAVE STATUS --> SHOW REPLICA STATUS"
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CHANGE MASTER TO MASTER_USER= 'repl_user';
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"Command: START SLAVE --> START REPLICA"
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START REPLICA;
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include/wait_for_slave_io_to_start.inc
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include/wait_for_slave_sql_to_start.inc
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connection master;
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connection slave;
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connection master;
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"Command: SHOW SLAVE HOSTS --> SHOW REPLICA HOSTS"
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DROP USER 'repl_user';
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connection slave;
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"Command: SHOW SLAVE IO/SQL THREAD --> SHOW REPLICA IO/SQL THREAD"
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STOP REPLICA IO_THREAD;
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STOP REPLICA SQL_THREAD;
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include/wait_for_slave_io_to_stop.inc
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include/wait_for_slave_sql_to_stop.inc
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"Command: RESET SLAVE ALL --> RESET REPLICA ALL"
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RESET REPLICA ALL;
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connection master;
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RESET MASTER;
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CREATE TABLE t(f INT) ENGINE=INNODB;
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INSERT INTO t VALUES (10);
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DROP TABLE t;
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connection slave;
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CHANGE MASTER TO MASTER_HOST='127.0.0.1',MASTER_PORT=MASTER_PORT,MASTER_USER='root';
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"Command: START SLAVE UNTIL --> START REPLICA UNTIL"
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START REPLICA UNTIL MASTER_LOG_FILE='MASTER_LOG_FILE', MASTER_LOG_POS=MASTER_POS;
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include/wait_for_slave_sql_to_stop.inc
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include/stop_slave_io.inc
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SELECT * FROM t;
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f
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10
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include/check_slave_param.inc [Exec_Master_Log_Pos]
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"MASTER_USE_GTID=SLAVE_POS --> MASTER_USE_GTID=REPLICA_POS"
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CHANGE MASTER TO master_host = '127.0.0.1', master_port = MASTER_PORT, MASTER_USE_GTID=REPLICA_POS;
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include/start_slave.inc
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connection master;
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CREATE TABLE t2 (f INT PRIMARY KEY) ENGINE=INNODB;
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INSERT INTO t2 VALUES (10);
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DROP TABLE t2;
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include/rpl_end.inc
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