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Date: Tue, 24 Jun 2008 17:19:46 -0700 (PDT)
From: "Chris Douglas (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-3617) Writes from map serialization include
 redundant checks for accounting space
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     [ https://issues.apache.org/jira/browse/HADOOP-3617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Douglas updated HADOOP-3617:
----------------------------------

    Status: Patch Available  (was: Open)

> Writes from map serialization include redundant checks for accounting space
> ---------------------------------------------------------------------------
>
>                 Key: HADOOP-3617
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3617
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.17.0
>            Reporter: Chris Douglas
>            Assignee: Chris Douglas
>             Fix For: 0.19.0
>
>         Attachments: 3617-0.patch, 3617-1.patch, 3617-2.patch
>
>
> In BlockingBuffer::write, the collector verifies that there is sufficient space to hold metadata when it returns to MapOutputBuffer::collect. This check is redundant for serialized records that make more than one call to write.

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