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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10930) Refactor: Wrap Datanode IO related operations
Date Sat, 12 Nov 2016 15:49:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15659844#comment-15659844
] 

ASF GitHub Bot commented on HDFS-10930:
---------------------------------------

GitHub user xiaoyuyao opened a pull request:

    https://github.com/apache/hadoop/pull/160

    HDFS-10930.05.patch

    Create a PR for easy review.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/xiaoyuyao/hadoop HDFS-10930

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/hadoop/pull/160.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #160
    
----
commit 43c3f2eb9ffecd2ed4831148900d3213f3a8671a
Author: Xiaoyu Yao <xyao@apache.org>
Date:   2016-11-12T15:43:37Z

    HDFS-10930.05.patch

----


> Refactor: Wrap Datanode IO related operations
> ---------------------------------------------
>
>                 Key: HDFS-10930
>                 URL: https://issues.apache.org/jira/browse/HDFS-10930
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Xiaoyu Yao
>            Assignee: Xiaoyu Yao
>         Attachments: HDFS-10930.01.patch, HDFS-10930.02.patch, HDFS-10930.03.patch, HDFS-10930.04.patch,
HDFS-10930.05.patch
>
>
> Datanode IO (Disk/Network) related operations and instrumentations are currently spilled
in many classes such as DataNode.java, BlockReceiver.java, BlockSender.java, FsDatasetImpl.java,
FsVolumeImpl.java, DirectoryScanner.java, BlockScanner.java, FsDatasetAsyncDiskService.java,
LocalReplica.java, LocalReplicaPipeline.java, Storage.java, etc. 
> This ticket is opened to consolidate IO related operations for easy instrumentation,
metrics collection, logging and trouble shooting. 



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