Comment 14 for bug 1542491

setting this to medium severity

there is an existing race in how the cache is updated.
the workaround is to periodically restart the scheduled to clear the cache.

this looks like it affects all stable releases of OpenStack.
however its unlikely but not impossible that a fix for this can be backported.

given the above I'm marking this as medium as there is a relatively simple workaround even if the detection of the
isuee is not trivial.