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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-10548) Remove the long deprecated BlockReaderRemote
Date Mon, 20 Jun 2016 01:43:05 GMT
Kai Zheng created HDFS-10548:

             Summary: 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

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:
 * @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.

>From {{BlockReaderRemote2}} class header:
 * 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.

So even further, after getting rid of the old class, we could rename as the comment suggested:
BlockReaderRemote2 => BlockReaderRemote.

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