I use fedora 17, and when I setup nginx with uwsgi using unix domain socket, when I place the socket in a directory with proper permission it's ok, but when I place the socket in the /tmp it will cause nginx error:

connect() to unix:/tmp/MySite.sock failed (2: No such file or directory) while connecting to upstream

The file does exist and has read/write permission for nginx user. But what cause this error, its really drive me crazy, can somebody figure it out.


You can't place sockets intended for interprocess communication in /tmp.

For security reasons, recent versions of Fedora use namespaced temporary directories, meaning every service sees a completely different /tmp and can only see its own files in that directory.

To resolve the issue, place the socket in a different directory, such as /run (formerly known as /var/run).



Was seeing check-startup-logs messages from uwsgi, but had no data in the startup logs, wasn't able to find out what was happening. Turned out, I needed to change the sock file to a non-/tmp location, and add:

catch-exceptions = true

to the wsgi's ini file. turned out, I'd specified logging filehandler location to a non-existent directory, so it couldn't log the errors in the first place.

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