DNG - what does the background task VVCUnReferencedVersionsUpdaterTask do and it implications?
Running DNG 605 ifix5. A while ago we noted an issue with DNG diagnositics in that the background task has failed and reports: CRJAZ1992E The "com.ibm.team.repository.vvc.VVCUnReferencedVersionsUpdaterTask" task could not be completed and is now unscheduled. Error details: "Deferred operation failed"
The only thing I found on the IBM site is to restart the server to address this issue. I have restarted the server and although it's execution initially runs fine after the restart, a few hours later it is reporting the error again. I had also done a full reindex and repotools -clean but get the same results.
What does this task do and what are its implications on server performance and user data?
How do address this failing task?
Accepted answer
Hi Norman,
for CM enabled projects this Async Task auto scheduled task updates the versions that are not being referenced by any configuration.
Every time the task is executed it goes over all the change events to process and once successfully processed will delete the change event. For each event this task will find out if any baselines exist between the old and new versions, if that's the case it'll update the old ones as unreferenced so that that garbage collector can clean these versions from the index.
To address the task failure please get in touch with the support team.
Regards,
Javier.