sock error

birimblongas nginx-forum at
Wed May 27 21:55:23 UTC 2015

Hi, i have a rails app using unicorn + nginx.
Last month my app started to get really slow and giving me error 502.
Unicorn log doesn't show nothing, either my rails app log.
But looking at nginx error log, i get numerous: 

 [error] 1837#0: *263157 connect() to unix:/tmp/.app.sock failed (11:
Resource temporarily unavailable) while connecting to upstream,

What could it be? What causes this?

If I change from socket to tcp connection, my tcp connection doesn't give
this error, but gets time out.

Thanks for any help.

Posted at Nginx Forum:,259199,259199#msg-259199

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