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From Christopher Schultz <>
Subject Re: High Availability in Tomcat?
Date Wed, 11 May 2011 19:12:42 GMT
Hash: SHA1


On 5/11/2011 2:24 PM, Brian Braun wrote:
> First, I will implement the parallel deployment, so my redeployments wont
> cause unavailability. Then, with a little bit of time and as soon as I have
> two separate Tomcats and a load balancer, I will forget about the parallel
> deployment because, as you said, the other solution is better and helps me
> with the redeployment as well.

Note that there's nothing stopping you from running two separate Tomcat
instances on the same physical machine just for this purpose. You aren't
improving performance at all, but you are gaining the ability to
re-deploy with no downtime.

> I do have leaks, but fortunately they happen just when I stop the app, but
> not when it is already running. I mean, it doesn't get worse with time.

Good to know. When you DO have multiple Tomcat instances, you'll of
course be able to bring-down the entire JVM during a re-deployment to be
absolutely sure there is no wasted memory laying around.

Good luck,
- -chris
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