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    恢复slave从机上的部分表[ mysql数据库 ]

    mysql数据库 时间:2024-12-03 12:11:52

    作者:文/会员上传

    简介:

    以下案例演示重新初始化slave上的个别表,如test01和test02.
    1、停止slave复制
    点击(此处)折叠或打开mysql> stop slave;
    Query OK, 0 rows affected (0.02 sec) 2、在master

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    以下案例演示重新初始化slave上的个别表,如test01和test02.
    1、停止slave复制

    点击(此处)折叠或打开

      mysql> stop slave;
      Query OK, 0 rows affected (0.02 sec)
    2、在master导出这张表,并记录下同步的binlog和POS点
    mysqldump -uroot -pmysql -q --single --master-data=2 test test01 test02 > test_01_test_02.sql
    3、查看test_01_test_02.sql文件,找到记录的binlog和POS点
    MASTER_LOG_FILE='mysql-bin.000003', MASTER_LOG_POS=3407;
    4、把test_01_test_02.sql复制到slave上,并做change master指向

    点击(此处)折叠或打开

      mysql> start slave until master_log_file='mysql-bin.000003', MASTER_LOG_POS=3407;
      Query OK, 0 rows affected, 1 warning (0.01 sec)
    直到sql_thread线程为NO,这期间的同步报错一律跳过即可,可用如下命令跳过:
    stop slave;
    set global sql_slave_skip_counter=1;
    start slave;
    5、在slave上导入

    点击(此处)折叠或打开

      mysql> source /mysql/dump/test_01_test_02.sql
      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.04 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.04 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 6 rows affected (0.01 sec)
      Records: 6Duplicates: 0Warnings: 0

      Query OK, 0 rows affected (0.01 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.06 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.07 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 6 rows affected (0.01 sec)
      Records: 6Duplicates: 0Warnings: 0

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)

      Query OK, 0 rows affected (0.00 sec)
    6、导入完毕之后,开启同步即可。

    点击(此处)折叠或打开

      mysql> start slave;
      Query OK, 0 rows affected (0.01 sec)



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