Open socket left in connection

This issue which can be found as;

Still exists in 1.7.12, 1.8 and 1.9

We’ve isolated this between SPDY and (file)caching such as fastcgi_cache
proxy_cache, where exactly is not yet known, should you have this issue
either disable file caching or spdy.

You often need to run debug logging for days to get anything useful,
you have a worker with a de-attached port state then attempt to
this worker.

This issue is OS independent.

Posted at Nginx Forum:,258312,258312#msg-258312


This problem is related to SPDY and occurs on our system without fastcgi
It’s a pity that we cannot use SPDY on our production system…

Posted at Nginx Forum:,258312,258558#msg-258558