Hi.

I have a problem with nginx-1.1.16 uses proxy_cache_lock on.
When high load or many request to nginx, Suddenly nginx seems hang,
no response at all.
In netstat "SYN_RECV","CLOSE_WAIT" too many. This problem needs
restarting nginx, and "CLOSE_WAIT" clear.

There is no problem in front-end nginx servers, but backends one.

Any clue?


--
shin fukuda <albert@nn.iij4u.or.jp>

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