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https://issues.apache.org/jira/browse/HBASE-21215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16662878#comment-16662878
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Sean Busbey commented on HBASE-21215:
-------------------------------------

nit: error handling around the new arg has a gap. should get the usage warning 
here that's the same when the file doesn't exist:

{code}
loaner-atx4968-mba:hbase-3.0.0-SNAPSHOT busbey$ ./bin/hbase hbck --jar  2>&1 | 
grep -v INFO
2018-10-24 16:26:53,178 WARN  [main] util.NativeCodeLoader: Unable to load 
native-hadoop library for your platform... using builtin-java classes where 
applicable
Unrecognized option:--jar

-----------------------------------------------------------------------
NOTE: As of HBase version 2.0, the hbck tool is significantly changed.
In general, all Read-Only options are supported and can be be used
safely. Most -fix/ -repair options are NOT supported. Please see usage
below for details on which options are not supported.
-----------------------------------------------------------------------

Usage: fsck [opts] {only tables}
 where [opts] are:
... rest of hbck 1 help...
{code}

> Figure how to invoke hbck2; make it easy to find
> ------------------------------------------------
>
>                 Key: HBASE-21215
>                 URL: https://issues.apache.org/jira/browse/HBASE-21215
>             Project: HBase
>          Issue Type: Sub-task
>          Components: amv2, hbck2
>            Reporter: stack
>            Assignee: stack
>            Priority: Major
>             Fix For: 2.1.1
>
>         Attachments: HBASE-21215.branch-2.1.001.patch, 
> HBASE-21215.branch-2.1.002.patch
>
>
> In 
> https://docs.google.com/document/d/1Oun4G3M5fyrM0OxXcCKYF8td0KD7gJQjnU9Ad-2t-uk/edit#,
>  the doc on hbck2 'form', one item to figure is how to invoke hbck2. Related, 
> how to make it easy to find? [~busbey] has some ideas (posted in doc). This 
> issue is for implementation.



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