Re: Designing for Load on TomCat

2013-05-06 Thread Jakub 1983
Yogesh with a page response time of 5 seconds is it current response time or acceptable await time? if it is current response time, when was it measured, during max load, or during min load ? how many concurrent requests where sent ? why so long ? processor is busy, or communication with

Designing for Load on TomCat

2013-05-04 Thread yogesh hingmire
While planning / designing to build a web app that must scale to 2000 concurrent users, distributed across 5 Tomcat nodes in a cluster, Apache at the front of course and the ability to serve 20 concurrent requests per seconds during business hours, with a page response time of 5 seconds, how would

Re: Designing for Load on TomCat

2013-05-04 Thread André Warnier
yogesh hingmire wrote: While planning / designing to build a web app that must scale to 2000 concurrent users, distributed across 5 Tomcat nodes in a cluster, Apache at the front of course and the ability to serve 20 concurrent requests per seconds during business hours, with a page response

Re: Designing for Load on TomCat

2013-05-04 Thread yogesh hingmire
Thanks Andre and sorry for not mentioning about the other content that are actually requested by http get's from the jsp served., There is quite a lot of ajax calls and static content and that can be served out of httpd, but as of now it is not. I know not the best way, so i assume i have to

Re: Designing for Load on TomCat

2013-05-04 Thread André Warnier
yogesh hingmire wrote: On Sat, May 4, 2013 at 7:07 AM, André Warnier a...@ice-sa.com wrote: yogesh hingmire wrote: While planning / designing to build a web app that must scale to 2000 concurrent users, distributed across 5 Tomcat nodes in a cluster, Apache at the front of course and the

Re: Designing for Load on TomCat

2013-05-04 Thread Yogesh
Well my question is Is it a common design practice from your experiences to configure one node (maxthreads) for the scenario where all other nodes amongst which the load was distribued fail ? On the cluster part, wrt tomcats talking to each other do you mean the session replication feature or

Re: Designing for Load on TomCat

2013-05-04 Thread Mark Thomas
On 04/05/2013 16:01, Yogesh wrote: Well my question is Is it a common design practice from your experiences to configure one node (maxthreads) for the scenario where all other nodes amongst which the load was distribued fail ? You design for whatever level of resilience you need to meet the

Re: Designing for Load on TomCat

2013-05-04 Thread David Kerber
On 5/4/2013 1:24 PM, Mark Thomas wrote: On 04/05/2013 16:01, Yogesh wrote: Well my question is Is it a common design practice from your experiences to configure one node (maxthreads) for the scenario where all other nodes amongst which the load was distribued fail ? You design for whatever