When reindexing Jira does not close the handles on the old index-files properly.
Using lsof +L1 we could identify 6.89GiB of old indexes still open by jira but allready unlinked on the hard-drive.
We run reindexing every night at 3am triggered by a service-task. Right now this means we should better restart Jira every week or two so we don't need a bigger data partition and improve Jira performance.
How to reproduce?
I just now hit "Reindex" inside Jira and after it finished there were 17 new lines in the output of lsof +L1.