tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ib solution" <ibsolut...@gmail.com>
Subject Re: Hardware requirements for Tomcat
Date Mon, 20 Oct 2008 04:53:07 GMT
hai,

> "Model it and measure". Though, be critical of your measurements, too.
> I've been involved in a case where the developers were claiming that an
> application running on a two-machine cluster with 2GB JVM heaps on each
> machine did require at least 4GB heap/machine. After proper
> investigation, a memory leak in the application server (not Tomcat) was
> found, and eventually corrected by the server vendor. After the
> correction, the JVM heaps were lowered to 1GB/machine, and most possibly
> could be lowered even further.

what software that can test memory leak ?


-- 
TIA,

Andy Susanto,S.Kom
======================================================
for better search
http://www.slashmysearch.com/earn/id/24828
HP : 081513039998

On Sun, Oct 12, 2008 at 3:09 PM, Juha Laiho <Juha.Laiho@iki.fi> wrote:
> Arun M wrote:
>>
>> I need to know the hardware requirements in CentOS for hosting a website
>> which have 1000 concurrent users. I am using Tomcat 5.5, Mysql 5.1 and
>> Java1.5.
>
> That depends a lot more on your application and usage patterns than on
> the OS/application server/database server.
>
>> We are planning to host two servers one for application server and other
>> for
>> database server.
>
> That's a good basic division.
>
>> What should be hardware requirements for Both Servers like RAM, Harddisk,
>> Max Processors etc.,
>
> "Model it and measure". Though, be critical of your measurements, too.
> I've been involved in a case where the developers were claiming that an
> application running on a two-machine cluster with 2GB JVM heaps on each
> machine did require at least 4GB heap/machine. After proper
> investigation, a memory leak in the application server (not Tomcat) was
> found, and eventually corrected by the server vendor. After the
> correction, the JVM heaps were lowered to 1GB/machine, and most possibly
> could be lowered even further.
>
> So, in as early stage as possible, create some kind of test setup where
> you can see effects of different work loads on your servers. Extrapolate
> from results, and as you gain knowledge of the application and workload,
> rerun your tests to get better estimates.
> --
> ..Juha
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>

---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org


Mime
View raw message