AWS Wordpress网站崩溃

Question

网站今天上午工作正常，现在只是一个约45秒的负载后的白色屏幕。延迟非常高，在崩溃前看到数据库请求数量猛增。以下是错误日志中的一些信息：

[Tue Jan 20 19:35:35.758727 2015] [:error] [pid 5259] [client 10.164.61.169:9962] PHP Notice: Undefined offset: 0 in /var/app/current/content/themes/thereserve/_modules/z_interactive_map/_admin/settings-properties.php on line 217 
[Tue Jan 20 19:35:35.761324 2015] [:error] [pid 5259] [client 10.164.61.169:9962] PHP Notice: Trying to get property of non-object in /var/app/current/content/themes/thereserve/_modules/z_interactive_map/_admin/settings-properties.php on line 217 
[Tue Jan 20 19:41:34.521481 2015] [mpm_prefork:error] [pid 1867] AH00161: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting 
[Tue Jan 20 20:53:29.784736 2015] [mpm_prefork:notice] [pid 1867] AH00171: Graceful restart requested, doing restart 
[Tue Jan 20 20:53:34.308282 2015] [auth_digest:notice] [pid 1867] AH01757: generating secret for digest authentication ... 
[Tue Jan 20 20:53:34.344476 2015] [lbmethod_heartbeat:notice] [pid 1867] AH02282: No slotmem from mod_heartmonitor 
[Tue Jan 20 20:53:34.427428 2015] [mpm_prefork:notice] [pid 1867] AH00163: Apache/2.4.6 (Amazon) configured -- resuming normal operations 
[Tue Jan 20 20:53:34.427451 2015] [core:notice] [pid 1867] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND' 

Answer 1

“服务器达到MaxRequestWorkers设置”这一事实有点令人担忧。我无法回答为什么会发生这种情况，但这可能是另一个问题的结果。

如果碰到MaxRequestWorkers设置本身并不是另一个问题的结果，而是问题本身，那么可以在/etc/apache2/mods-available/mpm_worker.conf中引发“MaxRequestWorkers”上限，然后重新启动Apache。