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From Elias Kopsiaftis <yemi...@gmail.com>
Subject Re: tomcat randomly undeploys and redeploys the applications
Date Wed, 02 Apr 2014 20:21:32 GMT
Thanks Chris! I will look into this and let you guys know what I find


On Wed, Apr 2, 2014 at 4:19 PM, Christopher Schultz <
chris@christopherschultz.net> wrote:

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> Elias,
>
> On 4/2/14, 4:05 PM, Christopher Schultz wrote:
> > Chuck,
> >
> > On 4/2/14, 8:21 AM, Caldarale, Charles R wrote:
> >>> From: Elias Kopsiaftis [mailto:yemista@gmail.com] Subject:
> >>> tomcat randomly undeploys and redeploys the applications
> >
> >>> I deploy the application, then in the log file catalina.out i
> >>> get many messages from WebappClassLoader
> >>> clearReferencesThreads saying threads appear to have started
> >>> but have failed to stop
> >
> >> This is an indication that your webapp is not managing its
> >> threads properly.
> >
> >>> then finally, Ill get a message from HostConfig checkResources
> >>> that says its undeploying the context, and then it redeploys.
> >
> >> This is sometimes caused by incorrect timestamps on the bits of
> >> the webapp that Tomcat monitors, or an incorrect clock setting on
> >> the system Tomcat is running on.  The mismatch makes it appear
> >> that the webapp is being updated continuously.
> >
> > I've found that in development, a single update can cause Tomcat to
> > go into a loop of redeployments, re-deploying my web application
> > every few seconds or so. If I let it go, it does finally stop
> > reloading and settle down.
> >
> > I believe Tomcat will emit a log message informing the
> > administrator which file has triggered the reload, but I think it's
> > at the DEBUG log level.
>
> It's WebappClassLoader. You'll want to add this to your
> logging.properties in order to emit those messages:
>
> org.apache.catalina.loader.WebappClassLoader.level=DEBUG
>
> - -chris
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