apache假死怎么解决?
apache假死的解决方法:首先在apache的“httpd.conf”文件中启用MPM模块配置文件;然后修改MPM模块配置“http-mpm.conf”文件中的相关配置即可。
Apache每隔一段时间就死掉,假死,装死,不要脸的死,只能重启正常
服务器这几天每隔一段时间就死,须重启才能生效,查看Apache错误日志是这样
[Tue Dec 12 06:57:23.570079 2017] [mpm_winnt:error] [pid 5172:tid 5380] AH00326: Server ran out of threads to serve requests. Consider raising the ThreadsPerChild setting [Tue Dec 12 08:52:21.244119 2017] [mpm_winnt:crit] [pid 5172:tid 1272] AH02538: Child: Parent process exited abruptly. Child process is ending [Tue Dec 12 08:52:28.069576 2017] [mpm_winnt:notice] [pid 5668:tid 1372] AH00418: Parent: Created child process 4716 [Tue Dec 12 08:52:31.664441 2017] [mpm_winnt:notice] [pid 4716:tid 1272] AH00354: Child: Starting 150 worker threads.
查一下报错表示进程的线程数不够用,可以修改ThreadsPerChild,即每个子进程开启的并发线程数
报错原因 ( 摘 )
Apache针对不同的操作系统提供了多个不同的MPM模块,例如:mpm_beos、mpm_event、mpm_netware、mpmt_os2、mpm_prefork、mpm_winnt、mpm_worker。
Windows操作系统上默认的MPM模块是mpm_winnt,mpm_winnt模块是专门针对Windows操作系统而优化设计的MPM模块。它只创建一个单独的子进程,并在这个子进程中轮流产生多个线程来处理请求。
在对Apache的MPM模块具备一定了解后,我们就可以针对不同的MPM模块来修改Apache的最大并发连接数配置了
启用MPM模块配置文件
在Apace安装目录/conf/extra目录中有一个名为httpd-mpm.conf 的配置文件。该文件主要用于进行MPM模块的相关配置 我们需要在httpd.conf文件中启用该配置文件
# Server-pool management (MPM specific)
Include conf/extra/httpd-mpm.conf (去掉该行前面的注释符号"#")
修改MPM模块配置http-mpm.conf文件中的相关配置
#由于mpm_winnt模块只会创建1个子进程,因此这里对单个子进程的参数设置就相当于对整个Apache的参数设置。 <IfModule mpm_winnt_module> ThreadsPerChild 521 #默认值是150,推荐设置:小型网站=1000 中型网站=1000~2000 大型网站=2000~3500 MaxRequestsPerChild 3000 #推荐设置:小=10000 中或大=20000~100000 </IfModule>
重启,这两天没出现,等等
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