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Date: Fri, 19 Jul 2013 21:46:49 +0000 (UTC)
From: "Hamed Madani (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12657646.1373838550431.84065.1374270409242@arcas>
In-Reply-To: <JIRA.12657646.1373838550431@arcas>
References: <JIRA.12657646.1373838550431@arcas>
Subject: [jira] [Updated] (HBASE-8946) Add a new function to Thrift 2 to
 open scanner, get results and close scanner
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     [ https://issues.apache.org/jira/browse/HBASE-8946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hamed Madani updated HBASE-8946:
--------------------------------

    Attachment: HBASE-8946-V3.patch

Updated the patch with extended test. Also removed the following line from hbase.thrift *closeScanner* 
{code}
* Exhausted scanners are closed automatically.
{code}
                
> Add a new function to Thrift 2 to open scanner, get results and close scanner
> -----------------------------------------------------------------------------
>
>                 Key: HBASE-8946
>                 URL: https://issues.apache.org/jira/browse/HBASE-8946
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Thrift
>            Reporter: Hamed Madani
>              Labels: thrift2
>         Attachments: HBASE-8946.patch, HBASE-8946-V2.patch, HBASE-8946-V3.patch
>
>
> We found, very often we open a scanner , get x number of rows , then close the scanner immediately. The attached patch , add a new function *getScannerResults* that does just that. 
> Using getScannerResults function reduce number of calls to thrift server. Also since the scanner gets closed immediately, it is less prone to cause memory leak. 

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