Return-Path: Delivered-To: apmail-tomcat-users-archive@www.apache.org Received: (qmail 81100 invoked from network); 15 Oct 2010 14:21:38 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 15 Oct 2010 14:21:38 -0000 Received: (qmail 45055 invoked by uid 500); 15 Oct 2010 14:21:34 -0000 Delivered-To: apmail-tomcat-users-archive@tomcat.apache.org Received: (qmail 45013 invoked by uid 500); 15 Oct 2010 14:21:34 -0000 Mailing-List: contact users-help@tomcat.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: "Tomcat Users List" Delivered-To: mailing list users@tomcat.apache.org Received: (qmail 45003 invoked by uid 99); 15 Oct 2010 14:21:34 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 15 Oct 2010 14:21:34 +0000 X-ASF-Spam-Status: No, hits=0.7 required=10.0 tests=RCVD_IN_DNSWL_NONE,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [76.96.59.212] (HELO qmta14.westchester.pa.mail.comcast.net) (76.96.59.212) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 15 Oct 2010 14:21:25 +0000 Received: from omta20.westchester.pa.mail.comcast.net ([76.96.62.71]) by qmta14.westchester.pa.mail.comcast.net with comcast id JyME1f0041YDfWL5E2M5la; Fri, 15 Oct 2010 14:21:05 +0000 Received: from [192.168.1.202] ([69.143.109.145]) by omta20.westchester.pa.mail.comcast.net with comcast id K2M51f00238FjT13g2M5Nh; Fri, 15 Oct 2010 14:21:05 +0000 Message-ID: <4CB8634F.7080400@christopherschultz.net> Date: Fri, 15 Oct 2010 10:21:03 -0400 From: Christopher Schultz User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.9) Gecko/20100915 Thunderbird/3.1.4 MIME-Version: 1.0 To: Tomcat Users List Subject: Re: Tomcat LoadBalancing References: <4CB7D0FE.6090307@orkash.com> <99C8B2929B39C24493377AC7A121E21F99EDDDEE5A@USEA-EXCH8.na.uis.unisys.com> In-Reply-To: <99C8B2929B39C24493377AC7A121E21F99EDDDEE5A@USEA-EXCH8.na.uis.unisys.com> X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Chuck, On 10/15/2010 12:10 AM, Caldarale, Charles R wrote: >> From: Deepak Pal [mailto:deepak.pal@orkash.com] >> Subject: Re: Tomcat LoadBalancing > >> Should I continue with this configuration or make >> some changes to it. > > Since you're already front-ending Tomcat with httpd, you should use httpd as the load balancer. That's a proven and widely used technique. +1 Deepak's "archetecture" document shows /way/ more hardware and sofwtare than is necessary. Since there's already a single point of failure (the topmost Apache httpd instance), you may as well use that to directly load-balance the bottom-most Tomcat instances. That eliminates 6 of the 10 logical servers in your diagram without, IMO, any loss of capability. It will certainly improve performance, too, without all that needless re-proxying. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAky4Y08ACgkQ9CaO5/Lv0PCCwQCgkNaT4r9ON5nGayDu7KzBD2IV KKUAoJt9h8WB1PDmhlRRbvvK6luGNnQB =khy+ -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org For additional commands, e-mail: users-help@tomcat.apache.org