After upgrade JIRA shows 500 error page with message User has no unique key mapping
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Symptoms
500 error page after JIRA upgrade
After upgrading error, JIRA shows the 500 error page with the following log message:
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java.lang.IllegalStateException: User 'admin' has no unique key mapping.The name of the user will be usually the administrator user and might differ based on your user configuration.
Diagnosis
The following appears in the atlassian-jira.log:
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The current license is too old to install this version of JIRA (6.x.x).Cause
For all upgrade methods, one of the pre-steps is to check that the current JIRA license is valid. If the license had expired before the upgrade, then it will lead to this error message. This is tracked as a known bug JRASERVER-37644 - Can't update expired license after upgrading JIRA.
Solution
Resolution
Please follow the workaround section from JRASERVER-37644 - Can't update expired license after upgrading JIRA.
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