Haproxy/ Varnish/ Cherokee/ Nginx/ Lighttpd

嗯，如果是单纯的做反向代理，HAProxy是性能最高的

@Michael:
1、关于配置源码exampels目录下有不少例子。注意最大fd数（连接数）还有超时时间之类的。可适当调节一下进程数看看有没有效果。
2、注意buffer大小对整个内存占用的影响。如果对默认值（16K）不满意，你可以修改它。
3、sepoll的性能不错，但是有bug会导致CPU占用100%，我不知道现在这个bug修复了没有，如果你想稳妥点，那可以只用epoll。

以上都要对你的实际应用测试后才知道是否有意义 🙂

不错，我们现在用的是Nginx-> varnish -> Nginx+PHP,前端的响应时没有什么问题的。只是后端数据库感觉有些瓶颈，不知道你们是怎么处理的？

生产环境中至少keepalived+haproxy*2保证前端转发正常吧。单台haproxy一旦出现问题整个项目不能用，风险太大吧。

后端数据库一般通过主辅库分离，然后配合mysql-proxy(LVS/Haproxy)等对多个辅库进行负载均衡，然后再加入memcached以及自己写的app中间数据引擎来缓存和索引，大致是这样

Haproxy->Varnish->Nginx+PHP->Memcached->Proxy(LVS)->MySQL (Other App + MySQL)

————–

呵，还好有括号说明，不然我还真理解成lua的那个“mysql-proxy”了。
我们当前的mysql slave均衡还是通过代码随机选取的，谈不上真正意义上的均衡，接下来我是打算在内网放一台专用于的均衡的服务器，应该是lvs或者haproxy。
另外，我观察到varnish的round-robin，random两个均衡策略对后端没有效果，不知道你碰到没有？
director webserver round-robin {
{ .backend = sina1; }
{ .backend = sina2; }
}

#director webserver random {
# .retries = 3;
# { .backend = sina1; .weight=5; }
# { .backend = sina2; .weight=5; }
#}

bobo068: 后端数据库一般通过主辅库分离，然后配合mysql-proxy(LVS/Haproxy)等对多个辅库进行负载均衡，然后再加入memcached以及自己写的app中间数据引擎来缓存和索引，大致是这样Haproxy->Varnish->Nginx+PHP->Memcached->Proxy(LVS)->MySQL (Other App + MySQL)————–呵，还好有括号说明，不然我还真理解成lua的那个“mysql-proxy”了。
我们当前的mysql slave均衡还是通过代码随机选取的，谈不上真正意义上的均衡，接下来我是打算在内网放一台专用于的均衡的服务器，应该是lvs或者haproxy。
另外，我观察到varnish的round-robin，random两个均衡策略对后端没有效果，不知道你碰到没有？
director webserver round-robin { { .backend = sina1; } { .backend = sina2; }
}#director webserver random {
#.retries = 3;
#{ .backend = sina1; .weight=5; }
#{ .backend = sina2; .weight=5; }
#}

我认为前端不可能只用一台haproxy来做成载的吧，如果是多台又没有lvs进行分配请求就可以考虑使用dns轮询的方式做负载，当然这样也会有风险存在，但总比单台承担风险要强

另外我认为，如果因为成本考虑而不能保证所有单点消除的话，可以考虑使用heartbeat2.x的技术，达到多机互为备份的做法，规避一下风险

对于这些个反向代理，我基本都用过，单单是性能对比的话 haproxy-varnish-nginx-squid
也可能是本人水平的有限，通过google找了很多高手的例子 感觉squid做静态的，如 图片服务器的话 很强大

Hello, i feel that i saw you visited my website thus i got here to return the choose?.I’m trying to
to find things to improve my website!I guess its good enough to
make use of a few of your ideas!!

Touche. Outstanding arguments. Keep up the amazing work.

Hey great blog! Does running a blog like this take a lot
of work? I have absolutely no knowledge of coding but I was hoping to
start my own blog in the near future. Anyways, should you have
any recommendations or techniques for new blog owners please
share. I know this is off topic but I just needed to ask.
Cheers!

Hi there friends, good piece of writing and nice urging commented here, I am genuinely enjoying by these.

Hello, after reading this amazing piece of writing i am also delighted to share my experience here
with friends.

What’s up to every single one, it’s truly
a pleasant for me to visit this website, it consists
of useful Information.

With havin so much written content do you ever run into any problems of plagorism or copyright violation? My site
has a lot of completely unique content I’ve
either created myself or outsourced but it seems a
lot of it is popping it up all over the web without my permission.
Do you know any solutions to help protect against content from being
ripped off? I’d really appreciate it.

I am sure this piece of writing has touched all the internet people, its really really pleasant post on building up new webpage.