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Date: Wed, 29 Jun 2016 01:27:10 +0000 (UTC)
From: "Kai Zheng (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12980691.1466386935000.28.1467163630650@Atlassian.JIRA>
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References: <JIRA.12980691.1466386935000@Atlassian.JIRA> <JIRA.12980691.1466386935847@arcas>
Subject: [jira] [Commented] (HDFS-10548) Remove the long deprecated
 BlockReaderRemote
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archived-at: Wed, 29 Jun 2016 01:27:12 -0000


    [ https://issues.apache.org/jira/browse/HDFS-10548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15354084#comment-15354084 ] 

Kai Zheng commented on HDFS-10548:
----------------------------------

Updated the patch doing the rename and also cleaning up the related tests.

> Remove the long deprecated BlockReaderRemote
> --------------------------------------------
>
>                 Key: HDFS-10548
>                 URL: https://issues.apache.org/jira/browse/HDFS-10548
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>         Attachments: HDFS-10548-v1.patch, HDFS-10548-v2.patch
>
>
> To lessen the maintain burden like raised in HDFS-8901, suggest we remove {{BlockReaderRemote}} class that's deprecated very long time ago. 
> From {{BlockReaderRemote}} header:
> {quote}
>  * @deprecated this is an old implementation that is being left around
>  * in case any issues spring up with the new {@link BlockReaderRemote2}
>  * implementation.
>  * It will be removed in the next release.
> {quote}
> From {{BlockReaderRemote2}} class header:
> {quote}
>  * This is a new implementation introduced in Hadoop 0.23 which
>  * is more efficient and simpler than the older BlockReader
>  * implementation. It should be renamed to BlockReaderRemote
>  * once we are confident in it.
> {quote}
> So even further, after getting rid of the old class, we could rename as the comment suggested: BlockReaderRemote2 => BlockReaderRemote.


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