[Building Sakai] 2.9.0 Realm/cache issue

[Adrian Fish]

I've seen it here on our 2.9. The initial symptom was problems with the
site. Any tool which was pulling the member data was breaking with the
stack trace you describe. Not only that, I couldn't edit the realm in the
realms tool.

We have a perl script running every 4 hours which updates our realms from
the SIS. I deleted the students from the site realm, in the db, before
manually rerunning the script, which fixed it for that site but I'm still
seeing the errors in the logs.

Cheers,
Adrian.

On 12 October 2012 10:02, David Horwitz <david.horwitz at uct.ac.za> wrote:

> Hi All,
>
> Testing our first take 2.9 installation I'm getting a weird class loader
> issue. This is triggered when a quartz job runs that updates a number of
> realms, basically a get from the cache fails due to the visibility of
> BaseRole. This is with 1.3.0-rc01 kernel, any one else seen this?
>
> net.sf.ehcache.CacheException: java.lang.ClassNotFoundException:
> org.sakaiproject.authz.impl.BaseRole
>          at
>
> net.sf.ehcache.store.disk.DiskStorageFactory.retrieve(DiskStorageFactory.java:967)
>          at net.sf.ehcache.store.disk.Segment.decodeHit(Segment.java:178)
>          at net.sf.ehcache.store.disk.Segment.get(Segment.java:216)
>          at net.sf.ehcache.store.disk.DiskStore.get(DiskStore.java:506)
>          at
> net.sf.ehcache.store.FrontEndCacheTier.get(FrontEndCacheTier.java:193)
>          at net.sf.ehcache.Cache.searchInStoreWithStats(Cache.java:1986)
>          at net.sf.ehcache.Cache.get(Cache.java:1618)
>          at org.sakaiproject.memory.impl.MemCache.get(MemCache.java:466)
>          at org.sakaiproject.memory.impl.MemCache.remove(MemCache.java:591)
>          at
>
> org.sakaiproject.authz.impl.DbAuthzGroupService.update(DbAuthzGroupService.java:2961)
>          at java.util.Observable.notifyObservers(Observable.java:142)
>          at
>
> org.sakaiproject.event.impl.BaseEventTrackingService.notifyObservers(BaseEventTrackingService.java:116)
>          at
>
> org.sakaiproject.event.impl.ClusterEventTracking.postEvent(ClusterEventTracking.java:305)
>          at
>
> org.sakaiproject.event.impl.BaseEventTrackingService.post(BaseEventTrackingService.java:276)
>          at
>
> org.sakaiproject.authz.impl.BaseAuthzGroupService.completeSave(BaseAuthzGroupService.java:620)
>          at
>
> org.sakaiproject.authz.impl.BaseAuthzGroupService.save(BaseAuthzGroupService.java:601)
>          at
>
> org.sakaiproject.component.app.scheduler.jobs.UCTSaveRealms.execute(UCTSaveRealms.java:82)
>          at
>
> org.sakaiproject.component.app.scheduler.jobs.SpringJobBeanWrapper.execute(SpringJobBeanWrapper.java:70)
>          at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
>          at
>
> org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:534)
> Caused by: java.lang.ClassNotFoundException:
> org.sakaiproject.authz.impl.BaseRole
>          at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
>          at java.security.AccessController.doPrivileged(Native Method)
>          at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
>          at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>          at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
>
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