[Hadoop-common-dev] Review Request: HADOOP-7314 Add support for throwing UnknownHostException when a host doesn't resolve

On 2011-05-23 15:49:39, Jeffrey Naisbitt wrote:

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https://reviews.apache.org/r/775/
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(Updated 2011-05-23 15:49:39)


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