[HDFS-3289] Commonize token selectors with fallback behavior

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.0.0-alpha
• Component/s: hdfs-client, security
• Assignee: Unassigned
• Reporter: Daryn Sharp
• Created: 17/Apr/12 20:07
• Updated: 10/Mar/15 04:35

Description

WebHdfsDelegationTokenSelector and HftpDelegationTokenSelector are essentially the same. They could be refactored to a new class in org.apache.hadoop.hdfs.security.token.delegation (or an inner class in DelegationTokenSelector) and then pass TOKEN_KIND in the constructor. The selector should look for the given kind, and if not found, fallback to looking for the hdfs/rpc token.

Issue Links

• relates to: HDFS-2652 Port token service changes from 205