在CentOS下优化Apache2服务器的性能是一个多方面的过程,涉及配置调整、模块启用、资源管理等。以下是一些关键的优化技巧:
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 5
这将设置最大KeepAlive请求数为100,并将超时时间设置为5秒。<IfModule mpm_prefork_module>
StartServers 5
MinSpareServers 5
MaxSpareServers 10
ServerLimit 256
MaxClients 256
MaxRequestsPerChild 2000
</IfModule>
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType text/css "access plus 30 days"
ExpiresByType image/jpeg "access plus 1 year"
ExpiresByType image/png "access plus 1 year"
ExpiresByType image/gif "access plus 1 year"
ExpiresByType application/javascript "access plus 30 days"
</IfModule>
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css application/javascript
</IfModule>
CustomLog logs/access_log common
LogLevel warn
<IfModule mod_proxy.c>
ProxyRequests Off
ProxyPass / http://backend_server/
ProxyPassReverse / http://backend_server/
</IfModule>
<IfModule mod_cache.c>
CacheEnable disk /
CacheRoot /var/cache/apache2
CacheDirLevels 2
CacheDirLength 1
</IfModule>
<IfModule mpm_worker.c>
StartServers 5
MinSpareThreads 50
MaxSpareThreads 250
ThreadLimit 256
MaxRequestWorkers 150
MaxConnectionsPerChild 0
</IfModule>
# LoadModule cgi_module modules/mod_cgi.so
# Include conf/extra/httpd-info.conf
LoadModule ssl_module modules/mod_ssl.so
SSLEngine on
SSLCertificateFile /etc/ssl/certs/your_domain.crt
SSLCertificateKeyFile /etc/ssl/private/your_domain.key
请注意,上述优化措施需要根据实际的服务器环境和业务需求进行调整。在进行任何配置更改后,都应进行充分的测试以确保服务器的稳定性和安全性。