• mysql主从复制replication的一些相关命令


    主服务器上的相关命令:
    show master status;

    mysql> show master statusG
    *************************** 1. row ***************************
                 File: host2-bin.000002
             Position: 420
         Binlog_Do_DB: 
     Binlog_Ignore_DB: 
    Executed_Gtid_Set: 5abd564e-2b4f-11e5-a7f1-000c2954ccde:1,
    780aa541-2b93-11e5-a9ad-000c29ef36a8:1
    1 row in set (0.00 sec)

    show slave hosts;

    mysql> show slave hosts;
    +-----------+-----------------+------+-----------+--------------------------------------+
    | Server_id | Host            | Port | Master_id | Slave_UUID                           |
    +-----------+-----------------+------+-----------+--------------------------------------+
    |         1 | 192.168.203.133 | 3306 |         2 | 780aa541-2b93-11e5-a9ad-000c29ef36a8 |
    |         3 | 192.168.203.134 | 3306 |         2 | 5abd564e-2b4f-11e5-a7f1-000c2954ccde |
    +-----------+-----------------+------+-----------+--------------------------------------+
    2 rows in set (0.00 sec)

    show binary logs;

    mysql> show binary logs;
    +------------------+-----------+
    | Log_name         | File_size |
    +------------------+-----------+
    | host2-bin.000001 |       413 |
    | host2-bin.000002 |       420 |
    +------------------+-----------+
    2 rows in set (0.00 sec)

    show binlog events;

    mysql> show binlog events;
    +------------------+-----+----------------+-----------+-------------+-------------------------------------------------------------------+
    | Log_name         | Pos | Event_type     | Server_id | End_log_pos | Info                                                              |
    +------------------+-----+----------------+-----------+-------------+-------------------------------------------------------------------+
    | host2-bin.000001 |   4 | Format_desc    |         2 |         120 | Server ver: 5.6.16-log, Binlog ver: 4                             |
    | host2-bin.000001 | 120 | Previous_gtids |         2 |         151 |                                                                   |
    | host2-bin.000001 | 151 | Gtid           |         1 |         199 | SET @@SESSION.GTID_NEXT= '780aa541-2b93-11e5-a9ad-000c29ef36a8:1' |
    | host2-bin.000001 | 199 | Query          |         1 |         262 | BEGIN                                                             |
    | host2-bin.000001 | 262 | Table_map      |         1 |         309 | table_id: 70 (testdb.t1)                                          |
    | host2-bin.000001 | 309 | Delete_rows    |         1 |         359 | table_id: 70 flags: STMT_END_F                                    |
    | host2-bin.000001 | 359 | Xid            |         1 |         390 | COMMIT /* xid=423 */                                              |
    | host2-bin.000001 | 390 | Stop           |         2 |         413 |                                                                   |
    +------------------+-----+----------------+-----------+-------------+-------------------------------------------------------------------+
    8 rows in set (0.00 sec)

    下面这几个是删除二进制相关的,不作演示,具体可以搜索一下用法:

    purge logs to 'log_name';
    purge logs before 'date';
    reset master;(老版本flush master)
    set sql_log_bin=

    从服务器上的相关命令:
    slave start
    slave stop
    SLAVE STOP IO_THREAD //此线程把master段的日志写到本地
    SLAVE start IO_THREAD
    SLAVE STOP SQL_THREAD //此线程把写到本地的日志应用于数据库
    SLAVE start SQL_THREAD
    reset slave
    SET GLOBAL SQL_SLAVE_SKIP_COUNTER
    load data from master
    show slave status(SUPER,REPLICATION CLIENT)
    CHANGE MASTER TO MASTER_HOST=, MASTER_PORT=,MASTER_USER=, MASTER_PASSWORD= //动态改变master信息
    PURGE MASTER [before 'date'] 删除master端已同步过的日志

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  • 原文地址:https://www.cnblogs.com/zejin2008/p/4656345.html
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