Home > 绝口不提技术 > 解决Discuz后台访问慢问题

解决Discuz后台访问慢问题

November 2nd, 2014
做负载均衡,通过NFS来实现共享存储,但是作为NFS客户端服务器访问后台很卡,前台正常。

web目录切换到本地访问正常,判断问题出在NFS上。前台访问正常说明读没问题,考虑到后台有行为记录,大概是写日志时出事儿(data/log/xxxxxx_cplog.php)。测试取消写日志后台访问正常,确认是NFS写文件的问题。
测试读写速度虽然不快但也算正常,肯定是哪里卡住了。尝试了设置块大小,允许异步存储均无效,最后去掉文件锁(-o nolock),速度正常了。所以最终mount的命令是
mount -t nfs -o nolock,async,noatime server:path path
关于NFS的文件锁,这里有比较详细的介绍:

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