We are getting an error with the free space health check regarding "Low disk space on device containing temporary directory (/opt/atlassian/jira/temp)" does this folder get cleared when JIRA is restarted? I assume it is safe to delete any thing marked as .tmp however there are also from the look of it some plugin data that is in there. Should I clear out the folder, restart JIRA, or just change the allocated space to the folder?