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https://issues.apache.org/jira/browse/MAPREDUCE-3317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13141150#comment-13141150
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Amar Kamat commented on MAPREDUCE-3317:
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What should be the expected output if either hostname or rackname is null? We
should make sure that Rumen's output is consistent and should match the
previous version.
> Rumen TraceBuilder is emiting null as hostname
> ----------------------------------------------
>
> Key: MAPREDUCE-3317
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3317
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tools/rumen
> Affects Versions: 0.23.0
> Reporter: Ravi Gummadi
> Assignee: Ravi Gummadi
> Fix For: 0.23.0
>
> Attachments: 3317.patch
>
>
> Trace generated by Rumen TraceBuilder contains null as hostname even though
> hostName and rackName are seen in history file. This is after MAPREDUCE-3035.
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