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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2212) Refactor double-buffering code out of EditLogOutputStreams
Date Fri, 05 Aug 2011 08:36:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13079836#comment-13079836
] 

Hudson commented on HDFS-2212:
------------------------------

Integrated in Hadoop-Hdfs-trunk #738 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/738/])
    HDFS-2212. Refactor double-buffering code out of EditLogOutputStreams. Contributed by
Todd Lipcon

eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1151736
Files : 
* /hadoop/common/trunk/hdfs/src/java/org/apache/hadoop/hdfs/server/namenode/EditLogFileOutputStream.java
* /hadoop/common/trunk/hdfs/CHANGES.txt
* /hadoop/common/trunk/hdfs/src/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogOp.java
* /hadoop/common/trunk/hdfs/src/test/hdfs/org/apache/hadoop/hdfs/server/namenode/TestEditsDoubleBuffer.java
* /hadoop/common/trunk/hdfs/src/java/org/apache/hadoop/hdfs/server/namenode/EditLogBackupOutputStream.java
* /hadoop/common/trunk/hdfs/src/java/org/apache/hadoop/hdfs/server/namenode/EditsDoubleBuffer.java


> Refactor double-buffering code out of EditLogOutputStreams
> ----------------------------------------------------------
>
>                 Key: HDFS-2212
>                 URL: https://issues.apache.org/jira/browse/HDFS-2212
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.23.0
>
>         Attachments: hdfs-2212.txt
>
>
> This is a small cleanup that makes EditLogFileOutputStream and EditLogBackupOutputStream
more consistent with each other on how they buffer edits. It simply refactors the double-buffering
behavior into a new class.

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