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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10930) Refactor: Wrap Datanode IO related operations
Date Tue, 06 Dec 2016 16:22:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15725951#comment-15725951
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Xiaoyu Yao commented on HDFS-10930:
-----------------------------------

Seems like Jenkins finally picked up the new [Github PR|https://builds.apache.org/job/PreCommit-HDFS-Build/17777/console]

{code}
GITHUB PR #170 is being downloaded at Tue Dec  6 16:18:15 UTC 2016 from
https://github.com/apache/hadoop/pull/170
Patch from GITHUB PR #170 is being downloaded at Tue Dec  6 16:18:16 UTC 2016 from
https://github.com/apache/hadoop/pull/170.patch
HDFS-10930 appears to be a Github PR. Switching Modes.
{code}

> 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
>             Fix For: 3.0.0-alpha2
>
>         Attachments: HDFS-10930-branch-2.00.patch, HDFS-10930-branch-2.001.patch, HDFS-10930.01.patch,
HDFS-10930.02.patch, HDFS-10930.03.patch, HDFS-10930.04.patch, HDFS-10930.05.patch, HDFS-10930.06.patch,
HDFS-10930.07.patch, HDFS-10930.08.patch, HDFS-10930.09.patch, HDFS-10930.10.patch, HDFS-10930.11.patch,
HDFS-10930.barnch-2.00.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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