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From "Jean-Marc Spaggiari (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8220) can we record the count opened HTable for HTablePool
Date Mon, 15 Apr 2013 23:46:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13632378#comment-13632378
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Jean-Marc Spaggiari commented on HBASE-8220:
--------------------------------------------

[~ndimiduk] I'm refering to this discussion: http://mail-archives.apache.org/mod_mbox/hbase-dev/201303.mbox/%3CCALte62yPR0vmQQm7O_48SKQiecX_=bE7=vJVpyL+3uZQge7KAA@mail.gmail.com%3E

But I can't confirm if it's going to be deprecated. Today in trunk it's not deprecated. So
should we do a the same patch for the trunk until we clearify if it's deprecated or not?
                
> can we record the count opened HTable for HTablePool
> ----------------------------------------------------
>
>                 Key: HBASE-8220
>                 URL: https://issues.apache.org/jira/browse/HBASE-8220
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client
>    Affects Versions: 0.94.3
>            Reporter: cuijianwei
>            Assignee: cuijianwei
>         Attachments: HBASE-8220-0.94.3.txt, HBASE-8220-0.94.3.txt, HBASE-8220-0.94.3.txt-v2,
HBASE-8220-0.94.3-v2.txt, HBASE-8220-0.94.3-v3.txt, HBASE-8220-0.94.3-v4.txt, HBASE-8220-0.94.3-v5.txt
>
>
> In HTablePool, we have a method getCurrentPoolSize(...) to get how many opened HTable
has been pooled. However, we don't know ConcurrentOpenedHTable which means the count of HTable
get from HTablePool.getTable(...) and don't return to HTablePool by PooledTable.close(). The
ConcurrentOpenedHTable may be meaningful because it indicates how many HTables should be opened
for the application which may help us set the appropriate MaxSize of HTablePool. Therefore,
we can and a ConcurrentOpenedHTable as a counter in HTablePool.

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