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From "shengjie min (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6956) Do not return back to HTablePool closed connections
Date Tue, 06 Nov 2012 10:30:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13491365#comment-13491365
] 

shengjie min commented on HBASE-6956:
-------------------------------------

[~amuraru]what version you are using?
                
> Do not return back to HTablePool closed connections
> ---------------------------------------------------
>
>                 Key: HBASE-6956
>                 URL: https://issues.apache.org/jira/browse/HBASE-6956
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 0.90.6
>            Reporter: Igor Yurinok
>
> Sometimes we see a lot of Exception about closed connections:
> {code}
>  org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@553fd068
closed
> org.apache.hadoop.hbase.client.ClosedConnectionException: org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@553fd068
closed
> {code}
> After investigation we assumed that it occurs because closed connection returns back
into HTablePool. 
> For our opinion best solution is  check whether the table is closed in method HTablePool.putTable
and if true don't add it into the queue and release such HTableInterface.
> But unfortunatly right now there are no access to HTable#closed field through HTableInterface

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