The storage wars: Shadow Paging, Log Structured Merge and Write Ahead Logging previous: Seek, and you shall find, or maybe delay a lot next: New interview question I've been doing a lot of research lately on storage. And in general, it seems that the…

If Protocol Buffers is the lingua franca of individual data record at Google, then the Sorted String Table (SSTable) is one of the most popular outputs for storing, processing, and exchanging datasets. As the name itself implies, an SSTable is a simp…

换到博客园排版有问题,原版在这里:http://xubenbenhit.github.io/LogStructureFileSystem.html Log-structured File Systems 2014-12-26 #system 先来扯淡,这篇博客讲的是LFS,之前写的硬盘与磁盘冗余阵列其实是第一篇,而这个应该算是第三篇,这中间差了一篇介绍文件系统的博客,原本打算今天回去之后一起写了,但是考虑到自己回家之后的效率不敢保证.故而先在实验室写完这个文章,而文件系统的资料全部在家. 1.…

https://msdn.microsoft.com/en-us/sync/bb887623 Introduction to Microsoft Sync Framework File Synchronization Provider Introduction Microsoft Sync Framework is a comprehensive综合 synchronization同步 platform that enables collaboration合作 and offline scena…

1.Mounting File Systems Just creating a partition and putting a file system on it is not enough to start using it. To use a partition, you have to mount it as well. By mounting a partition (or better, the file system on it), you make its contents acc…

文章首发于[博客园-陈树义],点击跳转到原文Canal同步异常分析:Could not find first log file name in binary log index file. 公司搜索相关的业务系统采用了ElasticSearch + Canal实现了实时搜索(详情可参考文章:ElasticSearch + Canal 开发千万级的实时搜索系统). 最近在查看线上Canal Server日志的时候发现了异常,这直接导致了其中一个数据库停止了数据同步. 从异常信息可以看到是实例为db…

从库报这个错误:Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file' Got fatal error 1236 from master when reading data from binary log: 'could not find next log' 可以 stop slave; res…

系统重启报错: Umounting file systems:umount:/opt:device is busy 只能硬关机,回想一下最近刚安装了nod32 for linux x64的杀毒软件,开启了文件系统监控,进入系统关闭文件防护即可…

年后回来查看mysql运行状况与备份情况,登录mysql从库查看主从同步状态 mysql> show slave status\G; *************************** . row *************************** Slave_IO_State: Master_Host: 101.200.*.* Master_User: backup Master_Port: Connect_Retry: Master_Log_File: master-bin. Rea…

数据库主从出错: Slave_IO_Running: No 一方面原因是因为网络通信的问题也有可能是日志读取错误的问题.以下是日志出错问题的解决方案: Last_IO_Error: Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in binary log index file' 解决办法:从机器停止slave mysql> slave…