Summary

Jira does not clean up the temporary directory ($JIRA_INSTALL/temp) automatically.

This is a major problem for Jira installations since the server hosting the Jira application might run out of space due to the size of the temp directory.

As a result, the Jira Health Check might report "Low disk space on device containing temporary directory".

Expected Results

Jira deletes old files during startup.

Actual Results

Looking at the file dates, many of the files are several months old.

Workaround

It is safe to manually delete the contents of the JIRA INSTALL/temp directory, as long as Jira is not running. Jira uses this directory to store all sorts of temporary files (downloading add-ons, add-ons manually uploaded by users, CSV imports, etc), so deleting it while Jira is running could cause instability, data loss and system crash.

Information about the fix introduced in Jira 9.5.0

For more information about the fix, and how to enabled it (it is disabled by default), please refer to the KB article https://confluence.atlassian.com/display/JIRAKB/Jira+Temporary+Directory+Cleaner.