zoukankan      html  css  js  c++  java
  • Mysql log_slave_updates 参数

    官网说明:
    
    Normally, a slave does not log to its own binary log any updates that are received from a master server. This option tells the slave to log the updates performed by its SQL thread to its own binary log. For this option to have any effect, the slave must also be started with the --log-bin option to enable binary logging. Prior to MySQL 5.5, the server would not start when using the --log-slave-updates option without also starting the server with the --log-bin option, and would fail with an error; in MySQL 5.5, only a warning is generated. (Bug #44663) --log-slave-updates is used when you want to chain replication servers. For example, you might want to set up replication servers using this arrangement:
    
    A -> B -> C
    
    
    Here, A serves as the master for the slave B, and B serves as the master for the slave C. For this to work, B must be both a master and a slave. You must start both A and B with --log-bin to enable binary logging, and B with the --log-slave-updates option so that updates received from A are logged by B to its binary log.
    
    
    
    通常情况,从服务器从主服务器接收到的更新不记入它的二进制日志。该选项告诉从服务器将其SQL线程执行的更新记入到从服务器自己的二进制日志。为了使该选项生效,还必须用--logs-bin选项启动从服务器以启用二进制日志。如果想要应用链式复制服务器,应使用--logs-slave-updates。例如,可能你想要这样设置:
    
    A -> B -> C
    
    也就是说,A为从服务器B的主服务器,B为从服务器C的主服务器。为了能工作,B必须既为主服务器又为从服务器。你必须用--logs-bin启动A和B以启用二进制日志,并且用--logs-slave-updates选项启动B。

    这样来自A的事务能记录在B的二进制文件中,再传送给C

  • 相关阅读:
    js中的日期控件My97 DatePicker
    list中慎用remove
    ehcache注解全面解析
    servlet
    SpringMVC注解@RequestMapping全面解析
    SpringMVC注解@RequestParam全面解析
    lucene全文检索
    jenkins和hudson
    Mysql与PostgreSql数据库学习笔记
    前端学习笔记
  • 原文地址:https://www.cnblogs.com/zejin2008/p/4656251.html
Copyright © 2011-2022 走看看