Out-of-the-box Background Queues for External Vaulting
This section describes the external vaulting queues that are established when your Windchill solution is installed.
PurgeScheduleHistoryQueue
The PurgeScheduleHistoryQueue is used by external vaulting and replication to track and clean up information about the old (outdated) schedules for revaulting and content replication. The queue contains only one object at any time.
A failed queue entry is an indication that old schedule histories could not be removed.
Checking for failed entries in this queue is not necessary. If the entry in the queue is in the failed state, it will be recreated during the next startup of the method server.
PurgeUnreferencedFvItemQueue
The PurgeUnreferencedFvItemQueue is used by external vaulting and Upload to Cache to track and clean up information about the outdated or failed attempts to perform upload of content to cache on the master site. The queue contains only one item at any time.
A failed queue entry is an indication that some outdated information about uploading to cache could not be removed.
Checking for failed entries in this queue is not necessary. If the entry in the queue is in the failed state, it will be recreated during the next startup of the method server.