Return-Path: Delivered-To: apmail-httpd-dev-archive@www.apache.org Received: (qmail 42309 invoked from network); 21 Jun 2006 09:42:28 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (209.237.227.199) by minotaur.apache.org with SMTP; 21 Jun 2006 09:42:28 -0000 Received: (qmail 82072 invoked by uid 500); 21 Jun 2006 09:42:24 -0000 Delivered-To: apmail-httpd-dev-archive@httpd.apache.org Received: (qmail 82015 invoked by uid 500); 21 Jun 2006 09:42:24 -0000 Mailing-List: contact dev-help@httpd.apache.org; run by ezmlm Precedence: bulk Reply-To: dev@httpd.apache.org list-help: list-unsubscribe: List-Post: List-Id: Delivered-To: mailing list dev@httpd.apache.org Received: (qmail 82004 invoked by uid 99); 21 Jun 2006 09:42:24 -0000 Received: from asf.osuosl.org (HELO asf.osuosl.org) (140.211.166.49) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 21 Jun 2006 02:42:24 -0700 X-ASF-Spam-Status: No, hits=1.1 required=10.0 tests=HTML_MESSAGE,INFO_TLD,RCVD_IN_NJABL_PROXY X-Spam-Check-By: apache.org Received-SPF: neutral (asf.osuosl.org: local policy) Received: from [212.27.42.30] (HELO smtp4-g19.free.fr) (212.27.42.30) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 21 Jun 2006 02:42:22 -0700 Received: from taris.localnet (stc92-2-82-228-136-150.fbx.proxad.net [82.228.136.150]) by smtp4-g19.free.fr (Postfix) with ESMTP id 7175A54C6F for ; Wed, 21 Jun 2006 11:42:00 +0200 (CEST) X-Spam-Level: Received: from localhost ([127.0.0.1]) by taris.localnet (Kerio MailServer 6.1.2) for dev@httpd.apache.org; Wed, 21 Jun 2006 11:41:58 +0200 From: Mathieu CARBONNEAUX Reply-To: info@ch2o.info To: dev@httpd.apache.org Subject: Re: [info@ch2o.info] Re: mod_proxy_balancer/mod_proxy_ajp TODO In-Reply-To: <200606192102.k5JL2FL21601@devsys.jaguNET.com> Message-ID: <20060621094158.88449078@taris.localnet> Date: Wed, 21 Jun 2006 11:41:58 +0200 X-Mailer: Kerio MailServer 6.1.2 WebMail X-User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.8.0.4) Gecko/20060508 Firefox/1.5.0.4 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----------flower-power-b4dee152ab2e241441a49df203fe42ec" X-Virus-Checked: Checked by ClamAV on apache.org X-Old-Spam-Status: No, hits=0.0 required=4.0 tests=ALL_TRUSTED: -2.4,AWL: -1.276,HTML_30_40: 0.879, HTML_MESSAGE: 0.001,INFO_TLD: 1.717,UNWANTED_LANGUAGE_BODY: 3 X-Spam-Rating: minotaur.apache.org 1.6.2 0/1000/N This is a multi-part message in MIME format. ------------flower-power-b4dee152ab2e241441a49df203fe42ec Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable like alteon load balancer from nortel... they provide health check for m= any protocole... for http is only simple get to backend... and on the backend you must pr= ovide a responde this check (ex:statics file)... you can define how many ping after how it consider the backend dead... and how many seconds between ping... =5F=5F=5F=5F=5F =20 From: Jim Jagielski [mailto:jim@jaguNET.com] To: dev@httpd.apache.org Sent: Mon, 19 Jun 2006 23:02:11 +0200 Subject: [info@ch2o.info] Re: mod=5Fproxy=5Fbalancer/mod=5Fproxy=5Fajp T= ODO Ruediger Pluem wrote: >=20 > +1. Just one thought: I think it would be useful to have this 'health = check' > approach somewhat generic so that we can implement the call to it = inside mod=5Fproxy > and its connection pooling itself (e.g. with providers supplied by= schema > handlers / modules). For AJP this would be CPING/CPONG of course a= nd > mod=5Fproxy itself could offer a generic TCP connection 'health ch= eck' provider that simply > checks the status of a TCP connection as far as this is possible w= ithout > reading or writing data. This would be a very generic provider. Ot= her protocol > handlers could define other (better) protocol specific providers a= nd > just plug them in. >=20 Agreed. Making a generic hearbeat interface that could vary depending on the actual protocol would be v. cool. So for AJP, CPING/CPONG, for HTTP some sort of generic TRACE (or HEAD)... --=20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D Jim Jagielski [|] jim@jaguNET.com [|] http://www.jaguNET.com/ "If you can dodge a wrench, you can dodge a ball." =20 ------------flower-power-b4dee152ab2e241441a49df203fe42ec Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable like alteon load balancer from nortel... they provide health check for m= any protocole...

for http is only simple get to backend... and on= the backend you must provide a responde this check (ex:statics file)...=

you can define how many ping after how it consider the backend d= ead...
and how many seconds between ping...


From: Jim Jagielski [mailto:ji= m@jaguNET.com]
To: dev@httpd.apache.org
Sent: Mon, 1= 9 Jun 2006 23:02:11 +0200
Subject: [info@ch2o.info] Re: mod=5F= proxy=5Fbalancer/mod=5Fproxy=5Fajp TODO

Ruediger Pluem wr= ote:
>
> +1. Just one thought: I think it would be useful t= o have this 'health check'
> approach somewhat generic so that= we can implement the call to it inside mod=5Fproxy
> and its = connection pooling itself (e.g. with providers supplied by schema
>= ; handlers / modules). For AJP this would be CPING/CPONG of course a= nd
> mod=5Fproxy itself could offer a generic TCP connection '= health check' provider that simply
> checks the status of a TC= P connection as far as this is possible without
> reading or w= riting data. This would be a very generic provider. Other protocol
&g= t; handlers could define other (better) protocol specific providers = and
> just plug them in.
>

Agreed. Making a gene= ric hearbeat interface that could vary depending
on the actual protoc= ol would be v. cool. So for AJP, CPING/CPONG,
for HTTP some sort of g= eneric TRACE (or HEAD)...
--
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Jim Jagielski [|] = jim@jaguNET.com [|] http://www.jaguNET.com/=
=09 "If you can dodge a wrench, you can dodge a ball."
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