Return-Path: Delivered-To: apmail-httpd-dev-archive@www.apache.org Received: (qmail 10727 invoked from network); 14 Feb 2008 11:37:42 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 14 Feb 2008 11:37:42 -0000 Received: (qmail 42603 invoked by uid 500); 14 Feb 2008 11:37:28 -0000 Delivered-To: apmail-httpd-dev-archive@httpd.apache.org Received: (qmail 42543 invoked by uid 500); 14 Feb 2008 11:37:27 -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 42521 invoked by uid 99); 14 Feb 2008 11:37:27 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 14 Feb 2008 03:37:27 -0800 X-ASF-Spam-Status: No, hits=-4.0 required=10.0 tests=RCVD_IN_DNSWL_MED,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: local policy) Received: from [64.236.221.40] (HELO atmail5.turner.com) (64.236.221.40) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 14 Feb 2008 11:36:43 +0000 X-IronPort-AV: E=Sophos;i="4.25,352,1199682000"; d="scan'208";a="359694799" Received: from atlbh05.turner.com ([10.188.157.235]) by atliport02.turner.com with ESMTP; 14 Feb 2008 06:37:03 -0500 Received: from ATLMSG13.turner.com ([10.188.170.53]) by ATLBH05.turner.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 14 Feb 2008 06:37:03 -0500 Received: from 10.188.174.6 ([10.188.174.6]) by ATLMSG13.turner.com ([10.188.170.53]) via Exchange Front-End Server atlwebaccess.turner.com ([10.188.157.196]) with Microsoft Exchange Server HTTP-DAV ; Thu, 14 Feb 2008 11:37:03 +0000 User-Agent: Microsoft-Entourage/11.3.6.070618 Date: Thu, 14 Feb 2008 06:37:02 -0500 Subject: Re: ping for http in mod_proxy From: "Akins, Brian" To: "dev@httpd.apache.org" Message-ID: Thread-Topic: ping for http in mod_proxy Thread-Index: Achua7RPFQuSl3f4TduHMTM8laqWxAAkjYvG In-Reply-To: <5A6CB924-EC13-442A-8FEC-AD6918FB9A5D@jaguNET.com> Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit X-OriginalArrivalTime: 14 Feb 2008 11:37:03.0631 (UTC) FILETIME=[EB7761F0:01C86EFD] X-Virus-Checked: Checked by ClamAV on apache.org On 2/13/08 1:09 PM, "Jim Jagielski" wrote: > And again, we're basically doubling traffic and adding > overheard (more overhead than AJP's cping/cpong) at which > point I go back into wondering whether this sort of > implementation makes sense at all... So is the main issue we are trying to solve is that we have a keepalive connection to an origin but it does away (closes) before we make or next request and this causes an "error." (Sorry if I'm behind on the thread.) Shouldn't the HTTP client handle all of this? I know that libcurl handles this situations very well - it just tries to reconnect. How does serf handle it? -- Brian Akins Chief Operations Engineer Turner Digital Media Technologies