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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4971) Move IO operations out of locking in OpenFileCtx
Date Mon, 23 Sep 2013 20:17:02 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13775617#comment-13775617
] 

Hudson commented on HDFS-4971:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #4458 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/4458/])
HDFS-4971. Move IO operations out of locking in OpenFileCtx. Contributed by Jing Zhao and
Brandon Li. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1525681)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/AsyncDataService.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OffsetRange.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtx.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/WriteCtx.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/WriteManager.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestOffsetRange.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

                
> Move IO operations out of locking in OpenFileCtx
> ------------------------------------------------
>
>                 Key: HDFS-4971
>                 URL: https://issues.apache.org/jira/browse/HDFS-4971
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: nfs
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>         Attachments: HDFS-4971.000.patch, HDFS-4971.001.patch, HDFS-4971.002.patch, HDFS-4971.003.patch,
HDFS-4971.004.patch, HDFS-4971.005.patch, HDFS-4971.006.patch, HDFS-4971.007.patch
>
>
> Currently some IO operations (such as writing data to HDFS and dumping to local disk)
in OpenFileCtx may hold a lock which can block processing incoming writing requests. This
jira aims to optimize OpenFileCtx and move the IO operations out of the locking.

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