今天查看mysql err日志.发现mysql重新启动时总会有例如以下日志出现: [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--relay-log=liytest-relay-bin' to avoid
前言:MySQL进行主主复制或主从复制的时候会在配置文件制定的目录下面产生相应的relay log,本文档总结这些相关参数的定义及解释. 1.什么是relay log The relay log, like the binary log, consists of a set of numbered files containing events that describe database changes, and an index file that contains the names of
原文:用批处理文件自动备份文件及文件夹,并自动删除n天前的文件 ---恢复内容开始--- 下是备份的批处理,添加到"计划任务"中,设定时间自动运行 复制代码 代码如下:@echo off rem 格式化日期 rem date出来的日期是"2006-02-22 星期三",不能直接拿来使用,所以应该先格式化一下 rem 变成我们想要的.date:~0,4的意思是从0开始截取4个字符 set d=%date:~0,4%%date:~5,2%%date:~8,2% rem
今天在使用冷备份文件重做从库时遇到一个报错,值得研究一下. 版本:MySQL5.6.27 一.报错现象 dba:(none)> start slave; ERROR (HY000): Slave failed to initialize relay log info structure from the repository 这个时候查看error.log: 2017-07-17 16:19:02 9022 [ERROR] Failed to open the relay log './tjtx
--master log 与relay log的关系 -------------------------------2014/06/09 Just to clarify, there are three sets of file/position coordinates in SHOW SLAVE STATUS: 1) The position, ON THE MASTER, from which the I/O thread is reading: Master_Log_File/Read_M