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https://issues.apache.org/jira/browse/HADOOP-12374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14731189#comment-14731189
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Daniel Templeton commented on HADOOP-12374:
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My primary concern is with the word "checkpoint." I'm worried that a newbie,
i.e. someone who would be reading the documentation, wouldn't understand what
that means without having to do more research. The advantage of the current
phrasing is that it's immediately understandable, even if it's not exactly
accurate.
> Description of hdfs expunge command is confusing
> ------------------------------------------------
>
> Key: HADOOP-12374
> URL: https://issues.apache.org/jira/browse/HADOOP-12374
> Project: Hadoop Common
> Issue Type: Bug
> Components: documentation, trash
> Affects Versions: 2.7.0, 2.7.1
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Priority: Trivial
> Labels: docuentation, newbie, suggestions, trash
> Attachments: HADOOP-12374.patch
>
>
> Usage: hadoop fs -expunge
> Empty the Trash. Refer to the HDFS Architecture Guide for more information on
> the Trash feature.
> this description is confusing. It gives user the impression that this command
> will empty trash, but actually it only removes old checkpoints. If user sets
> a pretty long value for fs.trash.interval, this command will not remove
> anything until checkpoints exist longer than this value.
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