[SENTRY-388] Solr Binding initKerberos should use supplied Configuration

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.0
• Fix Version/s: 1.5.0
• Assignee: Gregory Chanan
• Reporter: Gregory Chanan
• Created: 13/Aug/14 20:53
• Updated: 13/Aug/14 21:25
• Resolved: 13/Aug/14 21:25

Description

Sentry communicates with secure HDFS by creating a new Configuration object:
https://github.com/apache/incubator-sentry/blob/3be10df92c92e39e4d91ff2114f3f72783926e82/sentry-binding/sentry-binding-solr/src/main/java/org/apache/sentry/binding/solr/authz/SolrAuthzBinding.java#L185

The issue with that is when its used to set the UserGroupInformation configuration, it overwrites the existing configuration, which may have other (server) settings like kerberos rules. Ideally there would be separate client/servers interfaces, but lacking that, we need to use the passed in configuration.