Removing Queue Table Items / Queue UI Module D7 While attempting to export the mysql database, I found that there was a large number of items in the drupal 7 queue tables "feeds_importer_expire" and "feeds_source_import", both have about 80,000+ records dating back over a year.

I have installed the Queue UI module but have a question before I proceed.

In the "Queue Manager" at "admin/config/system/queue-ui" there is a delete queues button. If I delete the queue e.g. "feeds_importer_expire" will it regenerate the next time it is needed? Or am I deleting the queue all together and causing major issues.
The default Drupal supplied queues only exist when they have $items within them. It will be regenerated when it's next inserted into.

Depending on whether or not a worker process is working on a claimed item the queue item(s) when you delete the queue -- you may raise like a warning when the process tries to notify the queue of completion of an item. It shouldn't break the queue itself; the worker processes may need to be reset of course.