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From Leon Rosenberg <>
Subject Re: Monitoring production tomcat
Date Thu, 03 Feb 2011 10:40:08 GMT
There is clearly only one solution ;-)

Ok, advertisement aside, there are multiple, but moskito provides most
information of all the available tools.

Feel free to ask offlist too.


On Thu, Feb 3, 2011 at 10:57 AM, Adam Lipscombe
<> wrote:
> Folks
> We have a several production servers, each of which runs 1 instance of
> tomcat. Within each instance of tomcat there are approximately 10
> virtual websites. Each virtual website runs a copy of our web app.
> Therefore each server hosts @ 10 instances of our web app
> On a couple of the servers we are having problems with tomcat running
> out of memory and sometimes dropping the JDBC link to the MYSQL database
> etc.
> We usually restart tomcat, which of course cures the issues. However doing
> do affects every virtual site and therefore is not ideal from our customer's
> perspective.
> We have been looking at this problem for some time, however it is very
> difficult to determine what is causing these problems. Very likely something
> in out webapp.
> What would help is some kind of management or monitoring facility
> that allows us to see which virtual site is getting into trouble.
> Ideally it should give enough information to help us track down what is
> causing the issue. Memory usage per site, thread view etc.
> Can anyone recommend anything that can do this? Commercial or free?
> Many thanks - Adam
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