关于nginx的ngx_http_stub_status_module模块

http://wiki.codemongers.com/NginxHttpStubStatusModule木铎校园 BBS 社区WKe.dI2P!xS

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The stub status module reports status similar tomathopd'sstatus page. It is plain text information like木铎校园 BBS 社区0{M-xG&CB{3mo:T

Active connections: 291木铎校园 BBS 社区~%I+ILw!r8u%X
server accepts handled requests木铎校园 BBS 社区$k/IC+A%}/k.i+V	^$l
16630948 16630948 31070465
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active connections-- number of all open connections including connections to backends

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server accepts handled requests-- nginx accepted 16630948 connections, handled 16630948 connections (no one was closed just it was accepted), and handles 31070465 requests(1.8 requests per connection)木铎校园 BBS 社区_)v]z+^ Dd

reading-- nginx reads request header木铎校园 BBS 社区`:b?1l^f:tx5ak

writing-- nginx reads request body, processes request, or writes response to a client

j$~F4\jE1^0waiting-- keep-alive connections, actullay it isactive - (reading + writing)
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对于 waiting 状态： waiting=active -(reading + writing)，注意这里是减号木铎校园 BBS 社区v i@%w4mxW9xO
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而对于libevent模型来讲，排除阻塞的因素，waiting状态的连接一般为空闲的establelish状态的连接，数量过多的话，需要调节keeplive的值木铎校园 BBS 社区&m7|1rdS"p7F3`

^8E0dc(u!c v4M3eK0通过nginx的这个模块，参考下面的连接，可以得到很不错的监控图：木铎校园 BBS 社区1qhHS [%P'b
http://blog.kovyrin.net/2006/04/29/monitoring-nginx-with-rrdtool/木铎校园 BBS 社区:DVC:qEPG
http://dev.2xlp.com/svn/nginx_config/trunk/conf/_rrd/__README__.txt木铎校园 BBS 社区Xyl%uvc/Y@0{

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