Return-Path: Delivered-To: apmail-jakarta-tomcat-user-archive@www.apache.org Received: (qmail 64286 invoked from network); 7 Apr 2005 09:05:55 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (209.237.227.199) by minotaur.apache.org with SMTP; 7 Apr 2005 09:05:55 -0000 Received: (qmail 73944 invoked by uid 500); 7 Apr 2005 09:05:22 -0000 Delivered-To: apmail-jakarta-tomcat-user-archive@jakarta.apache.org Received: (qmail 73920 invoked by uid 500); 7 Apr 2005 09:05:22 -0000 Mailing-List: contact tomcat-user-help@jakarta.apache.org; run by ezmlm Precedence: bulk List-Unsubscribe: List-Subscribe: List-Help: List-Post: List-Id: "Tomcat Users List" Reply-To: "Tomcat Users List" Delivered-To: mailing list tomcat-user@jakarta.apache.org Received: (qmail 73898 invoked by uid 99); 7 Apr 2005 09:05:22 -0000 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests= X-Spam-Check-By: apache.org Received-SPF: neutral (hermes.apache.org: local policy) Received: from mh2.cvf.fr (HELO mh2.cvf.fr) (213.56.76.234) by apache.org (qpsmtpd/0.28) with ESMTP; Thu, 07 Apr 2005 02:05:19 -0700 Received: from [10.33.99.113] (helo=ms.int33.cvf) by mh2.cvf.fr with esmtp id 1DJSwt-0003Dj-00; Thu, 07 Apr 2005 11:05:15 +0200 Received: from [127.0.0.1] (helo=cocarde2.dev33.cvf) by ms.int33.cvf with smtp id 1DJSwt-0005xs-00; Thu, 07 Apr 2005 11:05:15 +0200 Date: Thu, 7 Apr 2005 11:05:14 +0200 From: Lionel Farbos To: "Tomcat Users List" Cc: shrikant.navelkar@gmail.com Subject: Re: Tomcat scalability Message-Id: <20050407110514.20a88bb0.lionel.farbos@free.fr> In-Reply-To: <4254BE2A.6060508@gmail.com> References: <4254BE2A.6060508@gmail.com> Organization: free X-Mailer: Sylpheed version 1.0.3 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-complaints-to: abuse@cvf.fr X-Virus-Checked: Checked X-Spam-Rating: minotaur.apache.org 1.6.2 0/1000/N Hi, If you want to use Tomcat for high loads, I suggest you to use apache/mod_jk and a cluster of Tomcat instances. With this solution you'll have load-balancing and failover for a lot of users. I don't use a HP very powerful, so, for the performances, I don't know if it is better to have one instance or several instances, but for the administration (applications upgrades, ...) and failover it is better to have several ones. For high performances, some readings : http://cvs.apache.org/~woolfel/benchmark_summary.pdf http://cvs.apache.org/~woolfel/tc_results.html http://brandlay.com/wojtek/publ/tomcat.jsp http://marc.theaimsgroup.com/?l=tomcat-user&m=110906276815396&w=2 http://www.servlets.com/cos/javadoc/com/oreilly/servlet/CacheHttpServlet.html http://simpleweb.sourceforge.net/performance/comparison.php a tool to test performances : Jmeter (http://jakarta.apache.org/jmeter/) Regards. On Thu, 07 Apr 2005 10:29:22 +0530 Shrikant Navelkar wrote: > Hi, > > We are planning to deploy an application (JSP/Tomcat/Oracle) for 300-400 > concurrent users. The hardware is HP/True UNIX platform and it is very > powerful. Unfortunately we can not deploy the application in a phased > wise manner. > > Can somebody help us to understand : > 1. How scalable Tomcat is ? Are there sufficient examples of Tomcat for > 300 + users ? > 1. What are the tools available for scalability testing ? > 2. Any document describing performance tuning of Tomcat server > 3. Can we implement multiple tomcat instances on same server for better > performance ? > > Thanks in advance > > Shrikant > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org > For additional commands, e-mail: tomcat-user-help@jakarta.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org For additional commands, e-mail: tomcat-user-help@jakarta.apache.org