[HDFS-2473] Fetching tokens from insecure cluster throws NPEs

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Not A Problem
• Affects Version/s: 0.20.205.0
• Component/s: hdfs-client
• Target Version/s: 0.20.205.0
• Assignee: Jakob Homan
• Reporter: Daryn Sharp
• Created: 19/Oct/11 17:34
• Updated: 05/Feb/15 17:18
• Resolved: 05/Feb/15 17:18

Description

Retrieving tokens from an insecure cluster throws an NPE. This prevents copies from insecure to secure clusters. The problem is in DFSClient.getDelegationToken(). It attempts to set the service and log the token w/o a null check.

FetchDT will also throw exceptions when fetching tokens from an insecure cluster.

Issue Links

• is broken by: HADOOP-7625 TestDelegationToken is failing in 205
• is broken by: HDFS-1007 HFTP needs to be updated to use delegation tokens
• is broken by: MAPREDUCE-2764 Fix renewal of dfs delegation tokens