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https://issues.apache.org/jira/browse/HADOOP-5981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12717272#action_12717272
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Amar Kamat commented on HADOOP-5981:
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Hemanth,
This is just a bugfix to do with HADOOP-2838. Currently we can pass
# x=:/tmp [sets x to :/tmp]
# x=$x:/tmp [appends :/tmp to x]
We can support x=$y:/tmp but I didnt have any usecase for that. Hemanth, if you
think thats a valid usecase then plz file a jira. Was this your concern?
> HADOOP-2838 doesnt work as expected
> -----------------------------------
>
> Key: HADOOP-5981
> URL: https://issues.apache.org/jira/browse/HADOOP-5981
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Amar Kamat
> Assignee: Amar Kamat
> Fix For: 0.21.0
>
> Attachments: HADOOP-5981-v1.1-branch-20.patch, HADOOP-5981-v1.1.patch
>
>
> The substitution feature i.e X=$X:/tmp doesnt work as expected.
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