Details
Description
I configured Nifi to use LDAP to provide users. Then in Nifi, using the UI, I created groups and associated some LDAP users to the groups.
This worked fine until a user was deleted in LDAP, when this happened when I tried to list users using the "burgerMenu -> Users" option the error: "Unable to find user with id 'ae1523b4-1336-3a1c-8283-0a784f5cb017'." was displayed.
The only way to fix this problem was to delete the association of the user to the group in the file: users.xml.
I think that when a user is deleted from LDAP and Nifi refreshes the user list it should check also for deleted users in order to remove them from user/groups associations as well to prevent this problem.
I've provided in this report a screenshot of the error.