From: Eric Wong <e@80x24.org>
To: Michael Fischer <mfischer@zendesk.com>
Cc: unicorn-public <unicorn-public@bogomips.org>
Subject: Re: nginx reverse proxy getting ECONNRESET
Date: Tue, 24 Mar 2015 22:54:38 +0000 [thread overview]
Message-ID: <20150324225437.GA21975@dcvr.yhbt.net> (raw)
In-Reply-To: <CABHxtY7Sn5yaiR5a3gDk1G4XySE+UtfuqUTcOSdmwneXLD5rcg@mail.gmail.com>
Michael Fischer <mfischer@zendesk.com> wrote:
> We have an nginx 1.6.2 proxy in front of a Unicorn 4.8.3 server that
> is frequently reporting the following error:
>
> 2015/03/24 01:46:01 [error] 11217#0: *872231 readv() failed (104:
> Connection reset by peer) while reading upstream
>
> The interesting things are:
>
> 1) The upstream is a Unix domain socket (to which Unicorn is bound)
> 2) Unicorn isn't reporting that a child died in the error log (and I
> verified their lifetimes with ps(1))
>
> Any hints as to what we should look for?
What changed recently with your setup?
Which OS/kernel version + vendor version?
Since you've been around a while, I take it this is only a recent issue?
Can you setup a test instance on a different nginx port/unicorn socket
and with a config.ru such as:
------------------------- 8< ----------------------
run(lambda do |env|
$stderr.write("#$$ starting at #{Time.now}\n")
# be sure to configure your unicorn timeout
sleep
# should not return, wait for unicorn to kill
end)
----------------------------------------------------
And hitting nginx with a single test request to reproduce the issue.
And see if it happens on the same/different hosts where you notice the
problem.
next prev parent reply other threads:[~2015-03-24 22:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-24 22:43 nginx reverse proxy getting ECONNRESET Michael Fischer
2015-03-24 22:54 ` Eric Wong [this message]
2015-03-24 22:59 ` Eric Wong
2015-03-24 23:04 ` Michael Fischer
2015-03-24 23:23 ` Eric Wong
2015-03-24 23:29 ` Michael Fischer
2015-03-24 23:46 ` Eric Wong
2015-03-24 23:55 ` Eric Wong
2015-03-25 9:41 ` Michael Fischer
2015-03-25 10:12 ` Eric Wong
2015-03-25 9:48 ` Michael Fischer
2015-03-24 23:02 ` Michael Fischer
-- strict thread matches above, loose matches on Subject: below --
2015-04-08 16:22 Gabe Martin-Dempesy
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