Question

我在主机上运行了2个slave mysql实例，它们从不同主机上的master复制数据。所有实例都是mysql 5.6。即使主站没有变化，从站实例的中继箱日志也会不断变化。以下是slave1：{/ p>的show slave status\G

           Slave_IO_State: Waiting for master to send event
          Master_Log_File: mysql-bin.000008
      Read_Master_Log_Pos: 210424
           Relay_Log_File: mysqld1-relay-bin.000878
            Relay_Log_Pos: 354
    Relay_Master_Log_File: mysql-bin.000008
         Slave_IO_Running: Yes
        Slave_SQL_Running: Yes
                     ... : ...

一段时间后，slave1的Relay_Log_File发生了变化，

           Slave_IO_State: Waiting for master to send event
          Master_Log_File: mysql-bin.000008
      Read_Master_Log_Pos: 210424
           Relay_Log_File: mysqld1-relay-bin.001374
            Relay_Log_Pos: 354
    Relay_Master_Log_File: mysql-bin.000008
         Slave_IO_Running: Yes
        Slave_SQL_Running: Yes
                     ... : ...

但没有对master，slave1或slave2进行任何更改。 slave2也发生了同样的事情。我怀疑这两个奴隶是以某种方式共享配置/设置他们不应该，但我无法确定出了什么问题。 my.cnf文件有

# The MySQL server mysqld1
[mysqld1]
user            = mysql
port            = 3301
pid-file        = /usr/local/mysql1/data/mysqld1.pid
socket          = /tmp/mysql1.sock
datadir         = /usr/local/mysql1/data
log-bin=mysql-bin
binlog_format=mixed
gtid-mode=on
disable-gtid-unsafe-statements=true
log-slave-updates=true # needed to enable gtid
sync-master-info = 1
master-info-repository=TABLE
relay-log-info-repository=TABLE
server-id       = 2
innodb_data_home_dir = /usr/local/mysql1/data
innodb_log_group_home_dir = /usr/local/mysql1/data
innodb_flush_log_at_trx_commit = 1
sync_binlog=1

[mysqld2]
user            = mysql
port            = 3302
pid-file        = /usr/local/mysql2/data/mysqld2.pid
socket          = /tmp/mysql2.sock
datadir         = /usr/local/mysql2/data
log-bin=mysql-bin
binlog_format=mixed
gtid-mode=on
disable-gtid-unsafe-statements=true
log-slave-updates=true # needed to enable gtid
sync-master-info = 1
master-info-repository=TABLE
relay-log-info-repository=TABLE
server-id       = 3
innodb_data_home_dir = /usr/local/mysql2/data
innodb_log_group_home_dir = /usr/local/mysql2/data
innodb_flush_log_at_trx_commit = 1
sync_binlog=1

有没有人遇到过这样的事情？以这种方式运行多个实例需要自定义命名中继日志吗？感谢。

Answer 1

事实证明，两个奴隶的log-bin名称需要不同。我已将其改为

[mysqld1]
log-bin=mysql-bin
[mysqld2]
log-bin=mysql-bin

到

[mysqld1]
log-bin=slave1-bin
[mysqld2]
log-bin-slave2-bin

来自Replication and auto-failover made easy with MySQL Utilities的示例配置提供了相关提示。

主机上有多个从属实例的mysql复制，中继站不断变化

1 个答案: