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https://issues.apache.org/jira/browse/HDFS-10839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15475453#comment-15475453
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Kai Zheng commented on HDFS-10839:
----------------------------------

Copied my comment from HDFS-8901:
bq. Looking at HDFS-10839 that does this work, it looks like to be more natural 
to add the API as readFully(ByteBuffer buf) in ByteBufferReadable interface. 

So adjusted the title and description some bit. We may also need to extend this 
effort because it may involves larger change.  [~zhz] any thought?

> Add new BlockReader#readFully(ByteBuffer buf) API
> -------------------------------------------------
>
>                 Key: HDFS-10839
>                 URL: https://issues.apache.org/jira/browse/HDFS-10839
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: SammiChen
>            Assignee: SammiChen
>         Attachments: HDFS-10839-v1.patch
>
>
> Add a ByteBuffer version readFully API in BlockReader interface,  to 
> facilitate read data from BlcokReader and then put them into ByteBuffer



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