AWS Wordpress網站崩潰

Question

網站今天上午工作正常，現在只是一個約45秒的負載後的白色屏幕。延遲非常高，在崩潰前看到數據庫請求數量猛增。以下是錯誤日誌中的一些信息：

[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

「服務器達到MaxRequestWorkers設置」這一事實有點令人擔憂。我無法回答爲什麼會發生這種情況，但這可能是另一個問題的結果。

如果碰到MaxRequestWorkers設置本身並不是另一個問題的結果，而是問題本身，那麼可以在/etc/apache2/mods-available/mpm_worker.conf中引發「MaxRequestWorkers」上限，然後重新啓動Apache。