unicorn Ruby/Rack server user+dev discussion/patches/pulls/bugs/help
 help / color / mirror / code / Atom feed
From: Pierre <oct@fotopedia.com>
To: unicorn list <mongrel-unicorn@rubyforge.org>
Subject: Re: Unicorn and HAProxy, 500 Internal errors after checks
Date: Wed, 1 Dec 2010 18:14:37 +0100	[thread overview]
Message-ID: <AANLkTimHFP7H+2FoEoe48gky4s8Z_BSUrmFLV41juP5F@mail.gmail.com> (raw)
In-Reply-To: <20101201165207.GC12001@dcvr.yhbt.net>

Dear Eric,

On Wed, Dec 1, 2010 at 5:52 PM, Eric Wong <normalperson@yhbt.net> wrote:
> Hi Pierre, HAProxy should be configured to send proper HTTP checks and
> not just TCP connection checks, the problem will go away then.

I understood this could be fixed this way and we will probably do that
soon. However, I think this is also the responsibility of Unicorn not
to reply anything when there's no request or at least log the error
somewhere :)

> Also, I
> can not recommend HAProxy unless you're certain all your clients are on
> a LAN and can be trusted to never trickle uploads nor reading large
> responses.

While I understand that uploads are very complicated to handle on the
stack (even nginx can be confused at upload sometimes), HAProxy proved
it was very good at managing tons of connections and high volume
traffic from the Internet. All the more so as it allows a very high
level of redundancy at a very small cost that cannot be achieved
simply otherwise. Do you have any pointers about your worrying
non-recommendation of HAProxy ?

As far as I'm concerned, I've used HAProxy in worldwide web context of
website serving up to 25 Millions pages with no problem, ever.

Thanks again for your support, :)
Pierre <oct@fotopedia.com>
Server Shepherd at http://www.fotopedia.com/
Unicorn mailing list - mongrel-unicorn@rubyforge.org
Do not quote signatures (like this one) or top post when replying

  reply	other threads:[~2010-12-01 17:20 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-01 11:59 Unicorn and HAProxy, 500 Internal errors after checks Pierre
2010-12-01 16:12 ` Clifton King
2010-12-01 17:02   ` Pierre
2010-12-01 16:52 ` Eric Wong
2010-12-01 17:14   ` Pierre [this message]
2010-12-01 19:58     ` Eric Wong
2010-12-02  0:42       ` Lawrence Pit
2010-12-02  4:59         ` Eric Wong
2010-12-02  8:38       ` Pierre
2010-12-02 17:39         ` Eric Wong
2010-12-03  8:41           ` Pierre
2010-12-04 23:38             ` Eric Wong
2010-12-05  1:04               ` russell muetzelfeldt
2010-12-06 18:39                 ` Eric Wong
2010-12-02 17:41     ` Eric Wong

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

  List information: https://yhbt.net/unicorn/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=AANLkTimHFP7H+2FoEoe48gky4s8Z_BSUrmFLV41juP5F@mail.gmail.com \
    --to=oct@fotopedia.com \
    --cc=mongrel-unicorn@rubyforge.org \


* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox


This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).