线上服务器一个晚上出现了：3276条 Broken pipe [plugins/python/wsgi_subhandler.c line 235错误
这个错误有可能是客户端取消产生的，nginx也有错误：大量499错误，499是nginx定义的，对应的是 “client has closed connection”，是不是手机客户端的超时设置的太短了
uWSGI] broken pipe ：http://lists.unbit.it/pipermail/uwsgi/2011-August/002484.html
uWSGI freezing ： http://lists.unbit.it/pipermail/uwsgi/2012-January/003256.html
http://lists.unbit.it/pipermail/uwsgi/2012-January/003257.html
http://lists.unbit.it/pipermail/uwsgi/2011-March/001585.html
http://www.mail-archive.com/uwsgi@lists.unbit.it/msg00509.html
tail -2000 201208/www_2012080322.log | grep 192.168.172.6 | awk -F '192.168.172' '{print $2}'
.6:7199 3.616 .
.6:7199 3.550 .
.6:7199 3.428 .
.6:7199 4.079 .
.6:7199 4.346 .
.6:7199 3.420 .
.6:7199 3.404 .
.6:7199 3.492 .
.6:7199 3.331 .
.6:7199 3.286 .
.6:7199 3.671 .
.6:7199 3.552 .
.6:7199 3.906 .
.6:7199 3.627 .