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https://issues.apache.org/jira/browse/HDFS-964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14074787#comment-14074787
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Juan Yu commented on HDFS-964:
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Hi [~aw], this seems a good idea, why is it marked as "Won't Fix"?
any reason, does it cause incompatibility issue?
> hdfs-default.xml shouldn't use hadoop.tmp.dir for dfs.data.dir (0.20 and
> lower) / dfs.datanode.dir (0.21 and up)
> ----------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-964
> URL: https://issues.apache.org/jira/browse/HDFS-964
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 0.20.2
> Reporter: Allen Wittenauer
> Assignee: Allen Wittenauer
> Attachments: HDFS-964.txt
>
>
> This question/problem pops up all the time. Can we *please* eliminate
> hadoop.tmp.dir's usage from the default in dfs.data.dir. It is confusing to
> new people and results in all sorts of weird accidents. If we want the same
> value, fine, but there are a lot of implied things by the variable re-use.
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