Apache挂起“子进程X仍未退出，发送了一个SIGKILL”
Apache挂起“子进程X仍未退出，发送了一个SIGKILL”
提问于 2020-11-03 15:31:24
我在服务器上更新了php7.3-fpm以使http2工作。设置所需的一切，h2工作很好，所有的网站都上线了。但是，就像每隔5分钟，服务器就会被这些错误困住，直到我重启apache。
我检查了所有的信任，试图计算MaxRequestWorkers，maxclient，pm.max_children，pm.start_servers，pm.min_spare_servers，pm.max_spare_servers。每一次改变都会使事情变得更糟或者更长时间。
服务器配置
- debian 10
- apache 2.4.38
- php 7.3.14
- 5.8GB内存
- 2 x Intel(R) Xeon(R) CPU E3-1585 L v5 @ 3.00GHz
服务器统计数据
- 大约100-200名现场用户
- https://i.stack.imgur.com/kKxLh.png (不能发布图片没有代表)
误差
[Tue Nov 03 15:30:07.450356 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 31148 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:07.450391 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 31149 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:07.450397 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 5692 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:07.450401 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 5860 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:07.450406 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 5982 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:07.450410 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 6138 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:09.452520 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 31148 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:09.452556 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 31149 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:09.452562 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 5692 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:09.452567 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 5860 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:09.452573 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 5982 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:09.452578 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 6138 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:11.454710 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 31148 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:11.454739 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 31149 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:11.454744 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 5692 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:11.454760 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 5860 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:11.454764 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 5982 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:11.454768 2020] [core:warn] [pid 31147:tid 139885881660544] AH00045: child process 6138 still did not exit, sending a SIGTERM
[Tue Nov 03 15:30:13.456926 2020] [core:error] [pid 31147:tid 139885881660544] AH00046: child process 31148 still did not exit, sending a SIGKILL
[Tue Nov 03 15:30:13.456983 2020] [core:error] [pid 31147:tid 139885881660544] AH00046: child process 31149 still did not exit, sending a SIGKILL
[Tue Nov 03 15:30:13.457006 2020] [core:error] [pid 31147:tid 139885881660544] AH00046: child process 5692 still did not exit, sending a SIGKILL
[Tue Nov 03 15:30:13.457028 2020] [core:error] [pid 31147:tid 139885881660544] AH00046: child process 5860 still did not exit, sending a SIGKILL
[Tue Nov 03 15:30:13.457059 2020] [core:error] [pid 31147:tid 139885881660544] AH00046: child process 5982 still did not exit, sending a SIGKILL
[Tue Nov 03 15:30:13.457094 2020] [core:error] [pid 31147:tid 139885881660544] AH00046: child process 6138 still did not exit, sending a SIGKILL
[Tue Nov 03 15:30:14.458349 2020] [mpm_event:notice] [pid 31147:tid 139885881660544] AH00491: caught SIGTERM, shutting down服务器mpm-event.conf
<IfModule mpm_event_module>
StartServers 2
MinSpareThreads 25
MaxSpareThreads 75
ThreadLimit 64
ThreadsPerChild 25
MaxRequestWorkers 150
MaxConnectionsPerChild 0
</IfModule>谢谢你的支持
回答 1
Server Fault用户
回答已采纳
发布于 2020-11-04 12:17:38
您可能需要将MPM从事件切换到预叉。大多数版本的PHP仍然不是线程安全的，唯一安全用于非线程安全代码的MPM是pre叉，因为它创建新的进程而不是线程来处理新的请求。
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原文链接：
https://serverfault.com/questions/1041127
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