PHP-FPM 在完成繁重工作时拥有太多用户时崩溃
我有一个运行Apache / 2.2.22（Debian），PHP 5.6.17作为FPM和MySQL 5.6.25的服务器。
该项目使用名为Redaxo的CMS运行（我不认为它那么重要，但我还是会告诉你）。在Redaxo中，有些功能需要一些时间（例如，删除缓存并重建缓存需要1-2分钟）。在这段时间里，当其他用户访问网站时，FPM崩溃了，我必须多次重新加载页面，直到服务器错误消失并且该过程完成。500 Internal Server Error
我注意到，只有当太多用户同时在网站上并且仅在完成繁重操作时，才会发生这种情况。
10个用户同时上网=没有问题
10个用户同时上网，而缓存删除=500个错误给大家。
我通过禁止除我以外的所有人的网站来检查这一点（.htaccess deny/allow with ip）。然后我做了繁重的手术，没有问题。一旦多个人再次出现在网站上，问题就再次出现。
它可能是什么？你们需要我从我这里获取什么信息？
这些值在php-fpm.conf
[global]
pid = /run/php5-fpm.pid
error_log = /var/log/php5-fpm.log
emergency_restart_threshold = 0
include=/etc/php5/fpm/pool.d/*.conf
这些值在特定于项目中设置（未注释）fpm.conf
[projectname]
user = projectname
group = projectname
listen = /var/run/php5-fpm-projectname.sock
listen.owner = projectname
listen.group = projectname
listen.mode = 0660
pm = dynamic
pm.max_children = 150
pm.start_servers = 10
pm.min_spare_servers = 10
pm.max_spare_servers = 30
chdir = /
php_value[upload_max_filesize] = 128M
php_value[max_post_size] = 128M
php_value[max_execution_time] = 180
php_value[memory_limit] = 256M
如果脚本有帮助，失败时它对MySQL和文件创建有很大帮助吗？但它很大，所以我不确定我是否应该在这里发布它？或者，如果这甚至是问题所在？
apache错误日志显示
[Tue Feb 09 10:54:01 2016] [error] [client {IP}] (104)Connection reset by peer: FastCGI: comm with server "/fcgi-bin-php5-fpm-projectnmae" aborted: read failed
[Tue Feb 09 10:54:01 2016] [error] [client {IP}] FastCGI: incomplete headers (0 bytes) received from server "/fcgi-bin-php5-fpm-projectnmae"
或者这个
[Tue Feb 09 11:00:46 2016] [error] [client {IP}] FastCGI: incomplete headers (0 bytes) received from server "/fcgi-bin-php5-fpm-projectname"
[Tue Feb 09 11:00:48 2016] [error] [client {IP}] (104)Connection reset by peer: FastCGI: comm with server "/fcgi-bin-php5-fpm-projectname" aborted: read failed
下面是这样说的。当然，总是不同的时间fpm-log
[10-Feb-2016 09:40:59] WARNING: [pool projectname] child 10970 exited on signal 7 (SIGBUS) after 50.186611 seconds from start
[10-Feb-2016 09:40:59] NOTICE: [pool projectname] child 11092 started
有时其中有这样的警告
[09-Feb-2016 11:00:41] WARNING: [pool projectname] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 8 children, there are 0 idle, and 6 total children
[09-Feb-2016 11:00:42] WARNING: [pool projectname] seems busy (you may need to increase pm.start_servers, or pm.min/max_spare_servers), spawning 16 children, there are 0 idle, and 7 total children
以下是一些更多调试信息
[18-Feb-2016 17:42:01] WARNING: [pool projectname] child 9088 exited on signal 7 (SIGBUS) after 70.130564 seconds from start
[18-Feb-2016 17:42:01] NOTICE: [pool projectname] child 9205 started
[18-Feb-2016 17:43:55] WARNING: [pool projectname] child 9099 said into stderr: "NOTICE: PHP message: PHP Notice: Undefined offset: 1181 in /var/www/projectname/htdocs/redaxo/include/classes/class.ooarticle.inc.php on line 44"
[18-Feb-2016 17:43:55] WARNING: [pool projectname] child 9099 said into stderr: "NOTICE: PHP message: PHP Warning: Invalid argument supplied for foreach() in /var/www/projectname/htdocs/redaxo/include/classes/class.ooredaxo.inc.php on line 134"
[18-Feb-2016 17:43:55] WARNING: [pool projectname] child 9099 exited on signal 7 (SIGBUS) after 183.838886 seconds from start
[18-Feb-2016 17:43:55] NOTICE: [pool projectname] child 9330 started
[18-Feb-2016 17:44:00] WARNING: [pool projectname] child 9101 exited on signal 7 (SIGBUS) after 188.987954 seconds from start
[18-Feb-2016 17:44:00] NOTICE: [pool projectname] child 9336 started
