Hi, few hours ago zeppelin stopped to run queries and begins to throw errors like
WARN org.apache.zeppelin.socket.NotebookServer: Job 20230217-161657_1725299508 is finished, status: ERROR, exception: null, result: %text javax.security.auth.login.LoginException: Unable to obtain password from user
Its kerberized AD KDC cluster.
ldapsearch and kinit with right principal works fine.
/etc/hosts are fine too.
The rest services on the cluster are green.
What else can I check?