Vipin Rathor created ZEPPELIN-5176:
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Summary: Kerberos ticket renewal fix in JDBC Interpreter
Key: ZEPPELIN-5176
URL: https://issues.apache.org/jira/browse/ZEPPELIN-5176
Project: Zeppelin
Issue Type: Bug
Components: JdbcInterpreter, security
Affects Versions: 0.7.3
Environment: HDP 2.6.4 running Zeppelin 0.7.3
Reporter: Vipin Rathor
Assignee: Vipin Rathor
It is observed in the JDBC Interpreter that Kerberos ticket renewal thread and
interpret() function vies for Kerberos ticket during Interpreter initialization
and later on, during the ticket renewal. The following observations were
noticed:
# Invalid Kerberos ticket with Interpreter; queries will start to fail after
few days
# Uninitialized UGI being used in the beginning; first login always happens to
be with auth:UNIX which is wrong
# Ticket renewal thread (runKerberosLogin() function) exhausts the max
attempts without giving a chance to acquire a ticket
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