From: Eric Wong <normalperson@yhbt.net>
To: unicorn list <mongrel-unicorn@rubyforge.org>
Cc: "Yeung, Jeffrey" <Jeffrey.Yeung@polycom.com>
Subject: Re: Unicorn_rails ignores USR2 signal
Date: Tue, 20 Mar 2012 19:57:48 +0000 [thread overview]
Message-ID: <20120320195748.GA1187@dcvr.yhbt.net> (raw)
In-Reply-To: <20120312224419.GA2942@dcvr.yhbt.net>
Eric Wong <normalperson@yhbt.net> wrote:
> "Yeung, Jeffrey" <Jeffrey.Yeung@polycom.com> wrote:
> > Sorry for the delay. It looks like disabling preload_app did the
> > trick. A new master was created after sending the USR2. Now the $$$
> > question is, what in the world is intercepting the signal? :S
>
> Good to know, I'd just grep the installation directories for all your
> Ruby libs + gems for USR2. I haven't seen this problem before, but it'd
> be good to document the conflict, at least.
Btw, did you ever figure out what was causing the conflict?
Pushing this out to git://bogomips.org/unicorn.git
>From 1e13ffee3469997286e65e0563b6433e7744388a Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Tue, 20 Mar 2012 19:51:35 +0000
Subject: [PATCH] KNOWN_ISSUES: document signal conflicts in libs/apps
Jeffrey Yeung confirmed this issue on the mailing list.
ref: <E8D9E7CCC2621343A0A3BB45E8DEDFA91C682DD23D@CRPMBOXPRD04.polycom.com>
---
KNOWN_ISSUES | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/KNOWN_ISSUES b/KNOWN_ISSUES
index f323c68..38263e7 100644
--- a/KNOWN_ISSUES
+++ b/KNOWN_ISSUES
@@ -3,6 +3,11 @@
Occasionally odd {issues}[link:ISSUES.html] arise without a transparent or
acceptable solution. Those issues are documented here.
+* Some libraries/applications may install signal handlers which conflict
+ with signal handlers unicorn uses. Leaving "preload_app false"
+ (the default) will allow unicorn to always override existing signal
+ handlers.
+
* Issues with FreeBSD jails can be worked around as documented by Tatsuya Ono:
http://mid.gmane.org/CAHBuKRj09FdxAgzsefJWotexw-7JYZGJMtgUp_dhjPz9VbKD6Q@mail.gmail.com
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next prev parent reply other threads:[~2012-03-20 19:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-09 21:48 Unicorn_rails ignores USR2 signal Yeung, Jeffrey
2012-03-09 22:24 ` Eric Wong
2012-03-09 22:39 ` Yeung, Jeffrey
2012-03-10 0:02 ` Eric Wong
2012-03-10 1:07 ` Yeung, Jeffrey
2012-03-10 1:30 ` Eric Wong
2012-03-12 21:21 ` Eric Wong
2012-03-12 22:39 ` Yeung, Jeffrey
2012-03-12 22:44 ` Eric Wong
2012-03-20 19:57 ` Eric Wong [this message]
2012-03-20 23:09 ` Yeung, Jeffrey
2012-03-21 2:27 ` Devin Ben-Hur
2012-03-30 22:16 ` Yeung, Jeffrey
2012-03-30 22:51 ` Alex Sharp
2013-05-08 18:15 ` Ryan Jones (RyanonRails)
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