Hi Martin!

On Tue, Jan 23, 2018 at 4:06 PM, Martin Grigorov <mgrigo...@apache.org>
wrote:

> Hi Sebastien,
>
> What exactly is the issue you experience ?
>

I don't know the cause but tomcat is crashing every 3 or 4 days (out of
memory) when running the wicket8.x version of the demo webapp.
When running the wicket7.x it works fine, and always used to.


>
> The Log4J problem is that it doesn't release all classes/class loaders at
> undeploy.
>
But if you run the application for N weeks without undeploy+deploy then it
> should not lead to any problems. Restarting the whole web server is also
> fine.
>

That was the part I didn't catch, thanks for the clarification!
So, it is not related to my current issue here...


>
> So, what exactly happens with Wicket 8.x after few weeks ?
> The application fails with OutOfMemoryError ? If this is the case then the
> way to debug it is to take heap dumps and analyze what's eating the memory.
> Start the application and take a heap dump. Then wait for N days and take
> another one. If you start the server with -XX:+HeapDumpOnOutOfMemoryError
> then it will dump it automatically when the OOM occurs.
>

Ok I will do this asap : redeploy a wicket8.x version, restart with
-XX:+HeapDumpOnOutOfMemoryError
and make an initial heap dump

Thanks again !
Sebastien.


Once you have the dumps you can compare them with VisualVM or analyze
> deeply with Eclipse MAT. if you upload the dumps somewhere I can analyze
> them for you ;-)
>
> Martin
>
> On Tue, Jan 23, 2018 at 11:30 AM, Sebastien <seb...@gmail.com> wrote:
>
> > Just to let you know, I've deployed the wicket7.x version of the Wicket
> > jQuery UI demo webapp on my tomcat server about 2 weeks ago... Everything
> > is working fine, no leak at all so far!
> > So I think it's safe to say the leak is coming from wicket 8.x. I saw the
> > comments about the log4j issue and the PageStore issue (but this one was
> > reported for wildfly IIRC).
> > Was the log4j issue affecting the wicket8.x branch only? Is there
> anything
> > I can test these days on my wicket8.x version?
> >
> > Thanks in advance :)
> > Sebastien.
> >
>

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