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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6916) HBA logs at info level errors that won't show in the shell
Date Thu, 04 Oct 2012 00:51:08 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13469042#comment-13469042
] 

Jean-Daniel Cryans commented on HBASE-6916:
-------------------------------------------

The TestShell failure is legit, it's always been failing but silently:

{noformat}
Wed Oct  3 23:45:04 UTC 2012......Finished in 72.002 seconds.  1) Error:
test_close_should_work_without_region_server_name(Hbase::AdminMethodsTest):
NativeException: org.apache.hadoop.hbase.UnknownRegionException: hbase_create_table_test_table,,0
   org/apache/hadoop/hbase/client/HBaseAdmin.java:1115:in `closeRegion'
{noformat}

That region name doesn't exist, it's bogus.

The other ones seem unrelated.
                
> HBA logs at info level errors that won't show in the shell
> ----------------------------------------------------------
>
>                 Key: HBASE-6916
>                 URL: https://issues.apache.org/jira/browse/HBASE-6916
>             Project: HBase
>          Issue Type: Bug
>          Components: shell
>    Affects Versions: 0.90.6, 0.92.1, 0.94.1, 0.96.0
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Minor
>             Fix For: 0.92.2, 0.94.3, 0.96.0
>
>         Attachments: HBASE-6916-0.94.patch, HBASE-6916.patch
>
>
> There is a weird interaction between the shell and HBA. When you try to close a region
that doesn't exist, it doesn't throw any error:
> {noformat}
> hbase(main):029:0> close_region 'thisisaninvalidregion'
> 0 row(s) in 0.0580 seconds
> {noformat}
> Normally one should get UnknownRegionException. Starting the shell with "-d" I see what
a non-shell user would see along with a ton of logging from ZK (skipped here):
> {noformat}
> INFO client.HBaseAdmin: No server in .META. for thisisaninvalidregion; pair=null
> {noformat}
> But again this is not the right message, it should have shown
> {noformat}
> INFO client.HBaseAdmin: No server in .META. for thisisaninvalidregion; pair=null
> {noformat}
> And this is because that part of the code treats both UnknownRegionException and NoServerForRegionException
like if it was the same thing.
> There is also some ugliness in flush, compact, and split but it normally doesn't show
since the code treats everything like it's a table and sends a TableNotFoundException.
> This jira is about making sure that the exceptions are correctly coming out.

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