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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-9369) DNS#reverseDns() can return hostname with . appended at the end
Date Wed, 06 Mar 2013 03:20:14 GMT
Karthik Kambatla created HADOOP-9369:
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             Summary: DNS#reverseDns() can return hostname with . appended at the end
                 Key: HADOOP-9369
                 URL: https://issues.apache.org/jira/browse/HADOOP-9369
             Project: Hadoop Common
          Issue Type: Bug
          Components: net
    Affects Versions: 0.23.5, 2.0.3-alpha, 1.1.1
            Reporter: Karthik Kambatla
            Assignee: Karthik Kambatla


DNS#reverseDns uses javax.naming.InitialDirContext to do a reverse DNS lookup. This can sometimes
return hostnames with a . at the end.

Saw this happen on hadoop-1: two nodes with tasktracker.dns.interface set to eth0

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