Prabhjyot Singh e1f0a3205e [ZEPPELIN-2698] Apply KerberosInterpreter to JDBCInterpreter ... ### What is this PR for? This is to apply new KerberosInterpreter mechanism to JDBCInterpreter for relogin from keytab, instead of on fail relogin. ### What type of PR is it? [Refactoring] ### What is the Jira issue? * [ZEPPELIN-2698](https://issues.apache.org/jira/browse/ZEPPELIN-2698) ### How should this be tested? In JDBC interpreter setting add following properties - zeppelin.jdbc.auth.type = KERBEROS - zeppelin.jdbc.principal = principal value - zeppelin.jdbc.keytab.location = keytab location Now try and run any of hive's query (say `show tables`) it should return with valid results. Again, wait for this kerberos ticket to expire (usually its 24hrs) then try the above again, and it should work. ### Questions: * Does the licenses files need update? N/A * Is there breaking changes for older versions? N/A * Does this needs documentation? N/A Author: Prabhjyot Singh <prabhjyotsingh@gmail.com> Author: prabhjyotsingh <prabhjyotsingh@gmail.com> Closes #2443 from prabhjyotsingh/ZEPPELIN-2698 and squashes the following commits: 835b4bd03 [Prabhjyot Singh] check for invalid user input; in case of error fall back to default values a5a54d466 [Prabhjyot Singh] runKerberosLogin block should return false 582372744 [Prabhjyot Singh] change schedule to submit so it runs without wait for the first time. LAUNCH_KERBEROS_REFRESH_INTERVAL to KERBEROS_REFRESH_INTERVAL 7fe883c3e [Prabhjyot Singh] @zjffdu review comments 7f8b8672b [prabhjyotsingh] call `startKerberosLoginThread` and `shutdownExecutorService` in parent class 57ea80c0c [Prabhjyot Singh] apply KerberosInterpreter to JDBCInterpreter		2017-07-07 11:49:43 +05:30
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src	[ZEPPELIN-2698] Apply KerberosInterpreter to JDBCInterpreter	2017-07-07 11:49:43 +05:30
pom.xml	ZEPPELIN-1977. spark 2.1 uses a more recent commons-lang3	2017-01-19 19:52:36 -08:00