[New-bugs-announce] [issue29780] Interpreter hang on self._epoll.poll(timeout, max_ev)

[Keyvan Hedayati]

New submission from Keyvan Hedayati:

Hello
We have an issue with our application, it randomly hangs and doesn't respond to new requests, at first we thought the problem lies within our code but after attaching to hanged process using gdb I couldn't find any code related to our application so I thought it might be python bug.
Here is the info extracted from gdb:
https://gist.github.com/k1-hedayati/96e28bf590c4392840650902cb5eceda
Python 3.5.2

We run multiple instances of our application and they are fine for a couple of days/hours but suddenly one of them starts hanging and others follow and unfortunately we can't reproduce the problem.
I'll be glad to receive any advice on how to solve or debug this issue.

----------
components: asyncio
messages: 289344
nosy: gvanrossum, k1.hedayati, yselivanov
priority: normal
severity: normal
status: open
title: Interpreter hang on self._epoll.poll(timeout, max_ev)
type: behavior
versions: Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29780>
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