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https://issues.apache.org/jira/browse/HADOOP-7314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13066213#comment-13066213
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Hudson commented on HADOOP-7314:
--------------------------------
Integrated in Hadoop-Common-trunk-Commit #691 (See
[https://builds.apache.org/job/Hadoop-Common-trunk-Commit/691/])
HADOOP-7314. Add support for throwing UnknownHostException when a host
doesn't resolve. Contributed by Jeffrey Naisbitt.
jitendra :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1147317
Files :
*
/hadoop/common/trunk/common/src/java/org/apache/hadoop/net/CachedDNSToSwitchMapping.java
*
/hadoop/common/trunk/common/src/java/org/apache/hadoop/net/DNSToSwitchMapping.java
*
/hadoop/common/trunk/common/src/java/org/apache/hadoop/net/ScriptBasedMapping.java
*
/hadoop/common/trunk/common/src/test/core/org/apache/hadoop/net/TestScriptBasedMapping.java
*
/hadoop/common/trunk/common/src/test/core/org/apache/hadoop/net/StaticMapping.java
* /hadoop/common/trunk/common/CHANGES.txt
> Add support for throwing UnknownHostException when a host doesn't resolve
> -------------------------------------------------------------------------
>
> Key: HADOOP-7314
> URL: https://issues.apache.org/jira/browse/HADOOP-7314
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 0.20.205.0, 0.23.0
> Reporter: Jeffrey Naisbitt
> Assignee: Jeffrey Naisbitt
> Attachments: HADOOP-7314-0.20s.patch, HADOOP-7314-v2.patch,
> HADOOP-7314-v3.patch, HADOOP-7314.patch
>
>
> As part of MAPREDUCE-2489, we need support for having the resolve methods
> (for DNS mapping) throw UnknownHostExceptions. (Currently, they hide the
> exception). Since the existing 'resolve' method is ultimately used by
> several other locations/components, I propose we add a new
> 'resolveValidHosts' method.
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