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:
{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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