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https://issues.apache.org/jira/browse/HDFS-6917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14108511#comment-14108511
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Yongjun Zhang commented on HDFS-6917:
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One small comment,
{code}
$ hdfs debug -help
Usage: hdfs debug <command> [arguments]
verify [-meta <metadata-file>] [-block <block-file>]
recoverLease [-path <path>] [-retries <num-retries>]
{code}
can we add brief description about the individual command about what they do
in addition to their arguments, in the above help message?
Thanks.
> Add an hdfs debug command to validate blocks, call recoverlease, etc.
> ---------------------------------------------------------------------
>
> Key: HDFS-6917
> URL: https://issues.apache.org/jira/browse/HDFS-6917
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 2.6.0
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-6917.001.patch
>
>
> HDFS should have a debug command which could validate HDFS block files, call
> recoverLease, and have some other functionality. These commands would be
> purely for debugging and would appear under a separate command hierarchy
> inside the hdfs command. There would be no guarantee of API stability for
> these commands and the debug submenu would not be listed by just typing the
> "hdfs" command.
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