[Building Sakai] Tomcats spontaneously unloading webapps?

[Joshua Swink]

This was caused by autoDeploy being 'true', and one of our processes
touched a file in webapps, prompting a reload. Furthermore, it seems that
Tomcat 7.0.37 handles autoDeploy very badly, and it ends up in an unusable
state.

We'll be upgrading to a more recent version of Tomcat and disabling
autoDeploy.

Josh


On Mon, Aug 26, 2013 at 4:59 PM, Joshua Swink <joshua.swink at gmail.com>wrote:

> Has anyone seen this problem where Tomcat spontaneously unloads a bunch of
> webapps?
>
> We're using Sakai 2.9.2. Sometimes a Tomcat will unload a large number of
> webapps for no apparent reason. They are always unloaded in the same order.
> When this happens, the application kind of runs but complains about lots of
> missing resources, and it's unusable.
>
> At first, the first context unloaded was /x. So I disabled and removed the
> url shortener, suspecting it was the problem. But it keeps happening except
> that the first context unloaded is now /profile-tool.
>
> I can't see anything in the log that hints at a cause. It starts with a
> "deleteRedeployResources" message.
>
> 2013-08-26 16:14:57,015 INFO http-apr-8080-exec-23
> org.sakaiproject.profile2.logic.ProfilePreferencesLogicImpl - Created
> default preferences record for user: e31c8093-049f-4d34-a7
> 8f-8b4b1abec8ef
> Aug 26, 2013 4:20:09 PM org.apache.catalina.startup.HostConfig
> deleteRedeployResources
> INFO: Undeploying context [/profile-tool]
> 2013-08-26 16:20:09,621 INFO
> ContainerBackgroundProcessor[StandardEngine[Catalina]]
> org.sakaiproject.jsf.util.JsfTool - destroy
> 2013-08-26 16:20:09,625 INFO
> ContainerBackgroundProcessor[StandardEngine[Catalina]]
> org.sakaiproject.util.ContextLoaderListener - Destroying Components in
> sakai-profile
> Aug 26, 2013 4:20:10 PM org.apache.catalina.startup.HostConfig
> deleteRedeployResources
> INFO: Undeploying context [/web]
> [...]
>
> Josh
>
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