在CentOS中优化Apache2服务器的响应速度可以通过多种策略实现,以下是一些关键的优化步骤和建议:
/etc/httpd/conf/httpd.conf中添加以下行:KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 5
prefork MPM。可以在/etc/httpd/conf.modules.d/00-mpm.conf中进行调整,例如:<IfModule mpm_prefork_module>
StartServers 5
MinSpareServers 5
MaxSpareServers 10
MaxRequestWorkers 150
MaxConnectionsPerChild 0
</IfModule>
mod_expires模块,在httpd.conf中添加:<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>
httpd.conf中添加:<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css application/javascript
</IfModule>
VirtualHost部分添加:CustomLog /var/log/apache2/access_log common
ErrorLog /var/log/apache2/error.log
/etc/sysctl.conf文件,添加或修改以下参数:net.ipv4.tcp_tw_reuse 1
net.ipv4.tcp_tw_recycle 1
net.ipv4.tcp_fin_timeout 30
net.ipv4.tcp_keepalive_time 1200
net.ipv4.ip_local_port_range "1024 65535"
net.ipv4.tcp_max_syn_backlog 8192
net.core.somaxconn 1024
net.core.netdev_max_backlog 2000
net.ipv4.tcp_max_orphans 32768
net.ipv4.tcp_syncookies 1
systemctl list-unit-files --type=services
sudo systemctl disable service_name
sysstat、sar、top等可以帮助监控系统性能,并及时发现并解决性能问题。top
vmstat
iostat
netstat
在进行任何优化操作之前,请确保备份重要数据,并在测试环境中验证优化效果。这些优化措施可以帮助提高CentOS Apache2服务器的性能和响应速度。