[英]PHP-FPM for WordPress gobbling up memory
I have a small, though not tiny, VPS: 1.5GHz, 1GB dedicated RAM, 1GB burstable RAM, some 40GB HDD. 我有一个很小但不是很小的VPS:1.5GHz,1GB专用RAM,1GB可爆RAM,约40GB HDD。
The stack is CentOS nginX mySQL(Percona) PHP-FPM. 堆栈是CentOS nginX mySQL(Percona)PHP-FPM。
I have 3 low traffic websites (10-40 visitors a day per site) each running a separate instance of WordPress. 我有3个低流量网站(每个网站每天10-40个访问者),每个网站都运行一个单独的WordPress实例。
Additionally, I have 3 more instances of WordPress. 此外,我还有3个WordPress实例。 These 3 sites aren't launched yet, so effectively traffic is zero. 这三个网站尚未启动,因此有效流量为零。
The CPU usage has never gone north of 5% in the last month or so. 在过去一个月左右的时间内,CPU使用率从未超过5%。
Yet, PHP-FPM process is taking up a ton of memory. 但是,PHP-FPM进程占用了大量内存。 At the moment, I am using 3GB (don't know how...because dedicated+burstable available to me should only be 2GB). 目前,我正在使用3GB(不知道如何使用...因为我可以使用的专用+突发数据应该只有2GB)。
PHP-FPM process for the 3 active websites are using 732MB, 438MB and 89MB respectively. 3个活动网站的PHP-FPM进程分别使用732MB,438MB和89MB。
PHP-FPM process for the 4 zero-traffic, zero-content websites are using 679MB, 621MB, and 596MB respectively. 这四个零流量,零内容网站的PHP-FPM进程分别使用679MB,621MB和596MB。
Further: 进一步:
Sample PHP-FPM config: http://hennalap.com/phpinfo.php 示例PHP-FPM配置: http : //hennalap.com/phpinfo.php
For most of these sites, conf file has values like 对于大多数这些网站,conf文件的值如下
pm = dynamic
pm.max_children = 10
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 5
pm.max_requests = 0
PHP-FPM is the culprit. PHP-FPM是元凶。
I started looking for an update and found that my version (5.3.3) was the last independent version of PHP-FPM. 我开始寻找更新,发现我的版本(5.3.3)是PHP-FPM的最后一个独立版本。 Subsequently it was merged into the main PHP project. 随后,它被合并到主要的PHP项目中。
PHP is already on 5.5.0 so I decided to upgrade to that. PHP已经在5.5.0上,因此我决定升级到该版本。 However, ISPConfig3 is not compatible with 5.5.0 so I ended up upgrading to 5.4.16 instead. 但是,ISPConfig3与5.5.0不兼容,因此我最终升级到了5.4.16。
I also set pm = ondemand (though pm = dynamic could have worked equally well). 我还设置了pm = ondemand(尽管pm = dynamic可以同样有效地工作)。
Now, my memory usage is 450MB, down from some 3.5GB! 现在,我的内存使用量从3.5GB降至450MB!
Umm may bad config, PHP-fpm never kill child ( so never restar, never clean RAM ), APC caching, php-fpm use 128 MB of RAM each process is they dont restart can use a lot of RAM. 嗯,配置可能不好,PHP-fpm永远不会杀死子进程(所以永远不要重做,永远不要清理RAM),APC缓存,php-fpm使用128 MB的RAM,每个进程只要不重启就可以使用很多RAM。
Maybe you can post some logs and configuration. 也许您可以发布一些日志和配置。
You use w3tc on wordpress or some plugin than caching and save info on APC ? 您在wordpress或某些插件上使用w3tc而不是缓存并在APC上保存信息?
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.