Options to clear user cache

[Markus]

This question is in reference to Atlassian Documentation: JIRA Login fails with 'User exists but has no unique key mapping'

We are facing the problem mentioned in symptom 2 very often. Is there any way to clear the User-Cache, without restarting JIRA?

[Karalee Kikiros · Accepted solution]

No

[Michael Ries]

Thank you so much!

[srikanth_ccx]

Run below command on Server. It drops cache without restarting. It worked for us and Jira performance improved.

 sync; echo 1 > /proc/sys/vm/drop_caches 

[LRN JIRA]

Is there any impact on server(Jira), because of this command????

[srikanth_ccx]

No, there are no issues.

[Julian Jansz]

Actually on the server where do you run this command. I'm new to Jira

[Matt Doar__ LinkedIn]

That's not the cache the user asking about

[Nicolas Bourdages _Ubisoft_]

The command line entry above didn't clear the user cache for me. I have a case where I had to change the user directory of a bunch of users from internal to internal with LDAP, so I changed the directory in cwd_user and cwd_user_attribute. But the cache meant the users still showed as Internal in Confluence. So here's what I did:

1. Created a new Internal user directory with LDAP auth. I left it at the last rank and didn't actually use it for anything.
2. Disabled and deleted that user directory

That forced the cache to refresh and the users then showed as part of the new directory in Confluence. That saved us from rebooting.