[HADOOP-9520] _HOST doesn't resolve to bound interface

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.0.4-alpha
• Assignee: Unassigned
• Reporter: Allen Wittenauer
• Created: 27/Apr/13 12:15
• Updated: 31/Jul/14 22:08
• Resolved: 31/Jul/14 22:08

Description

_HOST appears to ignore bound interfaces. For example, if a host has two interfaces such that:

nic0 = gethostname()
nic1 = someothername

and then I configure the namenode or resource manager to use someothername:####, the system still treats _HOST = nic0. This is especially harmful for Kerberos principals.