varnish配置

rpm --nosignature -i http://repo.varnish-cache.org/redhat/varnish-4.0/el6/noarch/varnish-release/varnish-release-4.0-4.el6.noarch.rpm
yum install varnish -y

/usr/local/varnish/sbin/varnishd -f /usr/local/varnish/etc/varnish/default.vcl -s malloc,1024m -T 127.0.0.1:200 -a 0.0.0.0:80

启动varnishncsa用来将Varnish访问日志写入日志文件：

/usr/local/varnish/bin/varnishncsa -n /var/vcache -w /var/logs/varnish.log &



配置开机自动启动Varnish

vi /etc/rc.local

　　在末尾增加以下内容：

引用
ulimit -SHn 51200
/usr/local/varnish/sbin/varnishd -n /var/vcache -f /usr/local/varnish/vcl.conf -a 0.0.0.0:80 -s file,/var/vcache/varnish_cache.data,1G -g www -u www -w 30000,51200,10 -T 127.0.0.1:3500 -p client_http11=on
/usr/local/varnish/bin/varnishncsa -n /var/vcache -w /var/logs/youvideo.log &



　优化Linux内核参数

vi /etc/sysctl.conf

　　在末尾增加以下内容：

引用
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 300
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.ip_local_port_range = 5000    65000

 查看Varnish服务器连接数与命中率
/usr/local/varnish/bin/varnishstat

 

配置启动脚本： 

mkdir /cache/varnish/V -p

vi /usr/local/varnish/sbin/start.sh

 

#!/bin/sh
#file:start.sh
date -u
/usr/local/varnish/sbin/varnishd -a 0.0.0.0:80  -s file,/cache/varnish/V,1024m  -f  /usr/local/varnish/etc/varnish/default.vcl  -p thread_pool_max=1500  -p thread_pools=5  -p listen_depth=512 

chmod 777 start.sh

运行：

/usr/local/varnish/sbin/start.sh










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最终可用命令：
varnishd -a 0.0.0.0:80 -s file,/varnishcache/varnish_storage.bin,1g  -T 0.0.0.0:6082 -f /etc/varnish/default.vcl -t 900 -p connect_timeout=600 -p thread_pool_min=200 -p thread_pool_max=5000 -p thread_pools=5 -p thread_pool_add_delay=2 -p listen_depth=512 -p http_req_size=131072 -p http_req_hdr_len=49152 

4、查看Varnish内存使用量：varnishstat -1|grep SMA