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1 day ago · 文章浏览阅读174次,点赞2次,收藏3次。根据上述表格,大概可以总结出以下结论:redo写入速率越快,备份报错时间越短,我们通过获取备份时间内的redo写入大小除以备份报错时长得到redo写入速率,再根据redolog的总大小除以备份报错时长得到redo拷贝速率,两者相减得到偏差速率(即每秒未完成拷贝的redo大小)。
1 day ago · 本文主要梳理介绍云MYSQL客户端经常发生因redo覆盖导致备份失败原理逻辑。. 一. 问题背景. 在生产环境中,杭研部分实例备份失败问题,如下图所示:. 排查备份日志,发现如下报错:. 报错日志分析:. 如下图xtrabackup备份原理图所示,xtrabackup备份期间会通过2个 ...
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1 day ago · 现网redo默认大小建议附录:作者:本文主要梳理介绍云MYSQL客户端经常发生因redo覆盖导致备份失败原理逻辑。. 一. 问题背景在生产环境中,杭研部分实例备份失败问题,如下图所示:排查备份日志,发现如下报错:报错日志分析:如下图xtrabackup备份原理图所示 ...
1 day ago · python切换终端虚拟环境 python终端切换目录,linux常用命令详解和用法:1、reboot命令用于重启机器;2、ls命令用于查看linux文件夹包含的文件;3、cd切换命令用于切换当前目录至dirName;4、pwd命令用于查看当前工作目录路径;5、mkdir命令用于创建文件夹等等。. 开关 ...