[HADOOP-10941] Proxy user verification NPEs if remote host is unresolvable

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.5.0, 3.0.0-alpha1
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: ipc, security
• Labels: BB2015-05-TBR
• Target Version/s: 2.8.0
• Assignee: Benoy Antony
• Reporter: Daryn Sharp
• Created: 06/Aug/14 13:57
• Updated: 30/Aug/16 01:32
• Resolved: 18/Oct/15 13:05

Description

A null is passed to the impersonation providers for the remote address if it is unresolvable. DefaultImpersationProvider will NPE, ipc will close the connection immediately (correct behavior for such unexpected exceptions), client fails on EOFException.

Issue Links

• is broken by: HADOOP-10940 RPC client does no bounds checking of responses