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https://issues.apache.org/jira/browse/HDFS-5565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832755#comment-13832755
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Colin Patrick McCabe commented on HDFS-5565:
--------------------------------------------
This is just a really simple command-line change. There's no way it could
cause QJM / Balancer / other test failures. I suspect some Jenkins issue, but
I'm not sure what. Maybe someone killed some threads somehow? I am re-running
the tests.
> CacheAdmin help should match against non-dashed commands
> --------------------------------------------------------
>
> Key: HDFS-5565
> URL: https://issues.apache.org/jira/browse/HDFS-5565
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: caching
> Affects Versions: 3.0.0
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Priority: Minor
> Labels: caching, newbie
> Attachments: hdfs-5565-1.patch
>
>
> Using the shell, `hdfs dfsadmin -help refreshNamespace` returns help text,
> but for cacheadmin, you have to specify `hdfs cacheadmin -help -addDirective`
> with a dash before the command name. This is inconsistent with dfsadmin, dfs,
> and haadmin, which also error when you provide a dash.
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