Apache-2.2

微調 HTTPD.CONF - 100 個並發連接後伺服器崩潰?

  • November 21, 2012

我們有一個 WordPress 網站,只要我們有大約 100 個使用者,它就會不斷關閉。已經安裝了 WP 超級記憶體。每次站點出現故障時,我們都必須執行service httpd restart.

現在,我們正在嘗試確定 HTTPD.CONF 中是否有任何需要微調的內容(這是 GoDaddy 的專用託管預設配置,由於 ServerFault 限制了發布的字元數,因此必須刪除評論):

ServerTokens OS

ServerRoot "/etc/httpd"

PidFile run/httpd.pid

Timeout 120

KeepAlive On

MaxKeepAliveRequests 500

KeepAliveTimeout 5

<IfModule prefork.c>
StartServers       1
MinSpareServers    1
MaxSpareServers    5
ServerLimit        50
MaxClients         50
MaxRequestsPerChild  4000
</IfModule>

<IfModule worker.c>
StartServers       1
MaxClients         50
MinSpareThreads    1
MaxSpareThreads    4
ThreadsPerChild    25
MaxRequestsPerChild  0
</IfModule>

Listen 80

LoadModule auth_basic_module modules/mod_auth_basic.so
LoadModule auth_digest_module modules/mod_auth_digest.so
LoadModule authn_file_module modules/mod_authn_file.so
LoadModule authn_alias_module modules/mod_authn_alias.so
LoadModule authn_anon_module modules/mod_authn_anon.so
LoadModule authn_dbm_module modules/mod_authn_dbm.so
LoadModule authn_default_module modules/mod_authn_default.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_user_module modules/mod_authz_user.so
LoadModule authz_owner_module modules/mod_authz_owner.so
LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
LoadModule authz_dbm_module modules/mod_authz_dbm.so
LoadModule authz_default_module modules/mod_authz_default.so
LoadModule ldap_module modules/mod_ldap.so
LoadModule authnz_ldap_module modules/mod_authnz_ldap.so
LoadModule include_module modules/mod_include.so
LoadModule log_config_module modules/mod_log_config.so
LoadModule logio_module modules/mod_logio.so
LoadModule env_module modules/mod_env.so
LoadModule ext_filter_module modules/mod_ext_filter.so
LoadModule mime_magic_module modules/mod_mime_magic.so
LoadModule expires_module modules/mod_expires.so
LoadModule deflate_module modules/mod_deflate.so
LoadModule headers_module modules/mod_headers.so
LoadModule usertrack_module modules/mod_usertrack.so
LoadModule setenvif_module modules/mod_setenvif.so
LoadModule mime_module modules/mod_mime.so
LoadModule dav_module modules/mod_dav.so
LoadModule status_module modules/mod_status.so
LoadModule autoindex_module modules/mod_autoindex.so
LoadModule info_module modules/mod_info.so
LoadModule dav_fs_module modules/mod_dav_fs.so
LoadModule vhost_alias_module modules/mod_vhost_alias.so
LoadModule negotiation_module modules/mod_negotiation.so
LoadModule dir_module modules/mod_dir.so
LoadModule actions_module modules/mod_actions.so
LoadModule speling_module modules/mod_speling.so
LoadModule userdir_module modules/mod_userdir.so
LoadModule alias_module modules/mod_alias.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule cache_module modules/mod_cache.so
LoadModule suexec_module modules/mod_suexec.so
LoadModule disk_cache_module modules/mod_disk_cache.so
LoadModule file_cache_module modules/mod_file_cache.so
LoadModule mem_cache_module modules/mod_mem_cache.so
LoadModule cgi_module modules/mod_cgi.so
LoadModule version_module modules/mod_version.so

Include conf.d/*.conf

User apache
Group apache

ServerAdmin root@localhost

UseCanonicalName Off

DocumentRoot "/var/www/html"

<Directory />
   Options FollowSymLinks
   AllowOverride None
</Directory>

<Directory "/var/www/html">

   Options Indexes FollowSymLinks

   AllowOverride None

   Order allow,deny
   Allow from all

</Directory>

<IfModule mod_userdir.c>
   UserDir disable    
</IfModule>

DirectoryIndex index.html index.html.var index.shtml index.cfm index.php index.htm

AccessFileName .htaccess

<Files ~ "^\.ht">
   Order allow,deny
   Deny from all
</Files>

TypesConfig /etc/mime.types

DefaultType text/plain

<IfModule mod_mime_magic.c>
   MIMEMagicFile conf/magic
</IfModule>

HostnameLookups Off

ErrorLog logs/error_log

LogLevel warn

LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %b" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent

CustomLog logs/access_log combined

ServerSignature On

Alias /icons/ "/var/www/icons/"

<Directory "/var/www/icons">
   Options Indexes MultiViews
   AllowOverride None
   Order allow,deny
   Allow from all
</Directory>

<IfModule mod_dav_fs.c>
   DAVLockDB /var/lib/dav/lockdb
</IfModule>

ScriptAlias /cgi-bin/ "/var/www/cgi-bin/"

<Directory "/var/www/cgi-bin">
   AllowOverride None
   Options None
   Order allow,deny
   Allow from all
</Directory>

IndexOptions FancyIndexing VersionSort NameWidth=* HTMLTable

AddIconByEncoding (CMP,/icons/compressed.gif) x-compress x-gzip

AddIconByType (TXT,/icons/text.gif) text/*
AddIconByType (IMG,/icons/image2.gif) image/*
AddIconByType (SND,/icons/sound2.gif) audio/*
AddIconByType (VID,/icons/movie.gif) video/*

AddIcon /icons/binary.gif .bin .exe
AddIcon /icons/binhex.gif .hqx
AddIcon /icons/tar.gif .tar
AddIcon /icons/world2.gif .wrl .wrl.gz .vrml .vrm .iv
AddIcon /icons/compressed.gif .Z .z .tgz .gz .zip
AddIcon /icons/a.gif .ps .ai .eps
AddIcon /icons/layout.gif .html .shtml .htm .pdf
AddIcon /icons/text.gif .txt
AddIcon /icons/c.gif .c
AddIcon /icons/p.gif .pl .py
AddIcon /icons/f.gif .for
AddIcon /icons/dvi.gif .dvi
AddIcon /icons/uuencoded.gif .uu
AddIcon /icons/script.gif .conf .sh .shar .csh .ksh .tcl
AddIcon /icons/tex.gif .tex
AddIcon /icons/bomb.gif core

AddIcon /icons/back.gif ..
AddIcon /icons/hand.right.gif README
AddIcon /icons/folder.gif ^^DIRECTORY^^
AddIcon /icons/blank.gif ^^BLANKICON^^

DefaultIcon /icons/unknown.gif
ReadmeName README.html
HeaderName HEADER.html

IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t

AddLanguage ca .ca
AddLanguage cs .cz .cs
AddLanguage da .dk
AddLanguage de .de
AddLanguage el .el
AddLanguage en .en
AddLanguage eo .eo
AddLanguage es .es
AddLanguage et .et
AddLanguage fr .fr
AddLanguage he .he
AddLanguage hr .hr
AddLanguage it .it
AddLanguage ja .ja
AddLanguage ko .ko
AddLanguage ltz .ltz
AddLanguage nl .nl
AddLanguage nn .nn
AddLanguage no .no
AddLanguage pl .po
AddLanguage pt .pt
AddLanguage pt-BR .pt-br
AddLanguage ru .ru
AddLanguage sv .sv
AddLanguage zh-CN .zh-cn
AddLanguage zh-TW .zh-tw

LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv zh-CN zh-TW

ForceLanguagePriority Prefer Fallback
AddType application/x-compress .Z
AddType application/x-gzip .gz .tgz
AddHandler type-map var

AddType text/html .shtml
AddOutputFilter INCLUDES .shtml

Alias /error/ "/var/www/error/"

<IfModule mod_negotiation.c>
<IfModule mod_include.c>
   <Directory "/var/www/error">
       AllowOverride None
       Options IncludesNoExec
       AddOutputFilter Includes html
       AddHandler type-map var
       Order allow,deny
       Allow from all
       LanguagePriority en es de fr
       ForceLanguagePriority Prefer Fallback
   </Directory>

</IfModule>
</IfModule>

BrowserMatch "Mozilla/2" nokeepalive
BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0
BrowserMatch "RealPlayer 4\.0" force-response-1.0
BrowserMatch "Java/1\.0" force-response-1.0
BrowserMatch "JDK/1\.0" force-response-1.0

BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully
BrowserMatch "MS FrontPage" redirect-carefully
BrowserMatch "^WebDrive" redirect-carefully
BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully
BrowserMatch "^gnome-vfs/1.0" redirect-carefully
BrowserMatch "^XML Spy" redirect-carefully
BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully

AddType application/x-httpd-php .php
AddType application/x-httpd-php-source .phps

載入的模組是:

芯的prefork http_core mod_so mod_auth_basic mod_auth_digest的mod_authn_file模組mod_authn_alias mod_authn_anon mod_authn_dbm mod_authn_default mod_authz_host mod_authz_user mod_authz_owner mod_authz_groupfile mod_authz_dbm mod_authz_default util_ldap mod_authnz_ldap模組mod_include負責mod_log_config mod_logio mod_env mod_ext_filter mod_mime_magic模組指定mod_expires mod_deflate模組mod_headers中mod_usertrack mod_setenvif mod_mime mod_dav的mod_status的mod_autoindex mod_info mod_dav_fs可以mod_vhost_alias mod_negotiation模組mod_dir mod_actions mod_speling mod_userdir mod_alias中的mod_rewrite mod_proxy的mod_proxy_balancer的mod_proxy_ftp模組mod_proxy_http mod_proxy_connect mod_cache的mod_suexec mod_disk_cache mod_file_cache mod_mem_cache mod_cgi mod_version mod_fcgid mod_perl mod_php5 mod_proxy_ajp mod_python mod_ssl

這個配置有什麼明顯的問題嗎?我們需要做些什麼來優化它?

嘗試提高這些值:

ServerLimit        50
MaxClients         50

但是,這樣做可能會使 Apache 消耗的記憶體量翻倍,因此請確保您有足夠的 RAM 來支持這一點。

幾週前,我需要為客戶端調整 apache Web 伺服器,儘管該過程很簡單(請參閱程序使用的記憶體、可用的伺服器記憶體等),但它也有點乏味。我希望找到一個現成的應用程序/腳本來進行數字運算,但我的搜尋沒有出現任何結果,所以我推出了自己的。;-) 我想你可能會發現它也很有用。您可以在此處找到部落格條目https://surniaulula.com/2012/11/09/check-apache-httpd-mpm-config-limits/以及 Google Code 上的腳本。

享受!

js。

引用自:https://serverfault.com/questions/299101