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From "Lei (Eddy) Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8924) Add pluggable interface for reading replicas in DFSClient
Date Thu, 20 Aug 2015 01:52:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14704147#comment-14704147
] 

Lei (Eddy) Xu commented on HDFS-8924:
-------------------------------------

This patch is mostly proposing an interface, it looks good to me.

Only a few minor comments:
* Could you remove the change in {{ClientContext.java}}?
* Would {{ReplicaAccessor}}, {{ReplicaAccessorBuilder}} to be {{interface}}?

+1 after these being addressed.

> Add pluggable interface for reading replicas in DFSClient
> ---------------------------------------------------------
>
>                 Key: HDFS-8924
>                 URL: https://issues.apache.org/jira/browse/HDFS-8924
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs-client
>    Affects Versions: 2.8.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-8924.001.patch
>
>
> We should add a pluggable interface for reading replicas in the DFSClient.  This could
be used to implement short-circuit reads on systems without file descriptors, or for other
optimizations.



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