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https://issues.apache.org/jira/browse/HADOOP-7314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13038002#comment-13038002
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[email protected] commented on HADOOP-7314:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/775/
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Review request for hadoop-common and hadoop-mapreduce.
Summary
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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.
This addresses bug HADOOP-7314.
https://issues.apache.org/jira/browse/HADOOP-7314
Diffs
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trunk/src/java/org/apache/hadoop/net/DNSToSwitchMapping.java 1125067
trunk/src/java/org/apache/hadoop/net/ScriptBasedMapping.java 1125067
trunk/src/test/core/org/apache/hadoop/net/StaticMapping.java 1125067
trunk/src/test/core/org/apache/hadoop/net/TestScriptBasedMapping.java 1125067
trunk/src/java/org/apache/hadoop/net/CachedDNSToSwitchMapping.java 1125067
Diff: https://reviews.apache.org/r/775/diff
Testing
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Thanks,
Jeffrey
> 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
> Reporter: Jeffrey Naisbitt
> Assignee: Jeffrey Naisbitt
> Attachments: 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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