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Date: Fri, 31 Aug 2012 16:31:09 +1100 (NCT)
From: "Lars Hofhansl (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Commented] (HBASE-6268) Can't enable a table on a 0.94
 cluster from a 0.92 client
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    [ https://issues.apache.org/jira/browse/HBASE-6268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445685#comment-13445685 ] 

Lars Hofhansl commented on HBASE-6268:
--------------------------------------

+1 on patch.
I apologize to not have caught this in 0.94.0 (HBASE-5206).

                
> Can't enable a table on a 0.94 cluster from a 0.92 client
> ---------------------------------------------------------
>
>                 Key: HBASE-6268
>                 URL: https://issues.apache.org/jira/browse/HBASE-6268
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jean-Daniel Cryans
>             Fix For: 0.92.2
>
>         Attachments: 6268-92.txt
>
>
> In 0.92 we know a table's enabled by doing this in HCM.isEnabledTable:
> bq. return getTableState(zkw, tableName) == null;
> In 0.94 we do:
> bq. return getTableState(zkw, tableName) == TableState.ENABLED;
> So what happens is that the the 0.92 client will hang forever since the znode contains ENABLED instead of being absent.

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