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https://issues.apache.org/jira/browse/HDFS-14585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16869186#comment-16869186
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Wei-Chiu Chuang commented on HDFS-14585:
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Hi [~leosun08] We typically backport from the newer branches to older branches.
The branch-2.8 is the oldest active branch. Would you please rebase on branch-2?

asflicense warning is false alarm. There are minor checkstyle warning that can 
be cleaned easily. The findbugs warning looks fishy. Looking back in my 
mailbox, the same warning came out a few times for branch-2. So probably 
unrelated, but we should file a jira for that.

Suggest to update the jira summary, as this is essentially a reimplementation 
of HDFS-8901 for replicated blocks. Hadoop 2 does not support EC, and so 
there's no need to support striped blocks. How about "Reimplement HDFS-8901 for 
replicated block positional read in branch-2"?

Do we need any test? Or is this purely an performance improvement and existing 
tests cover it all?

> Backport HDFS-8901 Use ByteBuffer in striping positional read to branch-2.8.x
> -----------------------------------------------------------------------------
>
>                 Key: HDFS-14585
>                 URL: https://issues.apache.org/jira/browse/HDFS-14585
>             Project: Hadoop HDFS
>          Issue Type: Task
>            Reporter: Lisheng Sun
>            Assignee: Lisheng Sun
>            Priority: Major
>         Attachments: HDFS-14585.branch-2.8.v1.patch
>
>




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