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Posted to common-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2013/03/06 06:26:18 UTC
[jira] [Updated] (HADOOP-9369) DNS#reverseDns() can return hostname
with . appended at the end
[ https://issues.apache.org/jira/browse/HADOOP-9369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Karthik Kambatla updated HADOOP-9369:
-------------------------------------
Attachment: hadoop-9369.patch
> 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: 1.1.1, 2.0.3-alpha, 0.23.5
> Reporter: Karthik Kambatla
> Assignee: Karthik Kambatla
> Attachments: hadoop-9369.patch
>
>
> 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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