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Date: Mon, 21 Oct 2013 01:29:42 +0000 (UTC)
From: "Ted Yu (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12673573.1381623499417.95283.1382318982909@arcas>
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Subject: [jira] [Updated] (HBASE-9754) Eliminate threadlocal from MVCC code
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     [ https://issues.apache.org/jira/browse/HBASE-9754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Yu updated HBASE-9754:
--------------------------

    Attachment: 9754-addendum.txt

> Eliminate threadlocal from MVCC code
> ------------------------------------
>
>                 Key: HBASE-9754
>                 URL: https://issues.apache.org/jira/browse/HBASE-9754
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Ted Yu
>             Fix For: 0.98.0
>
>         Attachments: 9754-0.94.txt, 9754-0.94-v2.txt, 9754-addendum.txt, 9754-rp-0.txt, 9754-rp-1.txt, 9754-rp-hregion.txt, 9754-rp-hregion-v2.txt, 9754-rp-hregion-v3.txt
>
>
> Brought up by [~vrodionov] and [~yuzhihong@gmail.com].
> Currently we use ThreadLocals to communicate the current readpoint between a RegionScanner and the Store\{File}Scanner's down the stack.
> Since ThreadLocals are not cheap we should consider whether it is possible to pass the readpoint through the call stack instead.


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