From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS15169 209.85.128.0/17 X-Spam-Status: No, score=-0.8 required=3.0 tests=AWL,BAYES_00,FREEMAIL_FROM, URIBL_BLOCKED shortcircuit=no autolearn=unavailable version=3.3.2 X-Original-To: unicorn-public@bogomips.org Received: from mail-lb0-f182.google.com (mail-lb0-f182.google.com [209.85.217.182]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 135EB1FACB for ; Tue, 2 Dec 2014 21:04:50 +0000 (UTC) Received: by mail-lb0-f182.google.com with SMTP id f15so12314196lbj.13 for ; Tue, 02 Dec 2014 13:04:48 -0800 (PST) X-Received: by 10.112.38.4 with SMTP id c4mr1213784lbk.46.1417554288207; Tue, 02 Dec 2014 13:04:48 -0800 (PST) MIME-Version: 1.0 Received: by 10.112.145.199 with HTTP; Tue, 2 Dec 2014 13:04:28 -0800 (PST) In-Reply-To: <20141202185854.GA15690@dcvr.yhbt.net> References: <20141202185854.GA15690@dcvr.yhbt.net> From: =?UTF-8?B?SsOpcsOpbXkgTGVjb3Vy?= Date: Tue, 2 Dec 2014 22:04:28 +0100 Message-ID: Subject: Re: worker freeze and strace interpretation To: Eric Wong Cc: unicorn-public@bogomips.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable List-Id: On Tue, Dec 2, 2014 at 7:58 PM, Eric Wong wrote: > Hope that helps. Man, your answer is detailed. Thanks. The PID 11587 was indeed for the worker process. FD 7 might be a connection to NewRelic over HTTPS. This app is doing a lot : connections to Redis, MySQL, Memcached, =E2=80=A6 It uses Ruby 2.1.5. If those EAGAIN are probably expected, I wouldn't dig deeper. I'm definitely not in my comfort zone here and wanted to be sure that there were not an elephant in the room that I couldn't see. I'll try to put some warn() in the code at the beginning and end of the request cycle to see if something shows up. Thank you very much for your time and help. --=20 J=C3=A9r=C3=A9my Lecour : http://jeremy.wordpress.com - http://twitter.com/jlecour