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https://issues.apache.org/jira/browse/MAPREDUCE-572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12873919#action_12873919
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Amareshwari Sriramadasu commented on MAPREDUCE-572:
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bq. Why is conversion of fragment name to lowercase needed ?
This is done to ignore-case among fragment names.
bq. Don't we want to support fragment names "Archive" and "archive" as 2
different names ?
Currently, No. These names are not allowed to be two different symlink names. I
think this is done to support operating systems like Windows.
> If #link is missing from uri format of -cacheArchive then streaming does not
> throw error.
> -----------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-572
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-572
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/streaming
> Reporter: Karam Singh
> Assignee: Amareshwari Sriramadasu
> Priority: Minor
> Fix For: 0.22.0
>
> Attachments: patch-572-1.txt, patch-572-2.txt, patch-572.txt
>
>
> Ran hadoop streaming command as -:
> bin/hadoop jar contrib/streaming/hadoop-*-streaming.jar -input in -output out
> -mapper "xargs cat" -reducer "bin/cat" -cahceArchive hdfs://h:p/pathofJarFile
> Streaming submits job to jobtracker and map fails.
> For similar with -cacheFile -:
> bin/hadoop jar contrib/streaming/hadoop-*-streaming.jar -input in -output out
> -mapper "xargs cat" -reducer "bin/cat" -cahceFile hdfs://h:p/pathofFile
> followinng error is repoerted back -:
> [
> You need to specify the uris as hdfs://host:port/#linkname,Please specify a
> different link name for all of your caching URIs
> ]
> Streaming should check about present #link after uri of cacheArchive and
> should throw proper error .
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