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https://issues.apache.org/jira/browse/HDFS-3051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13237185#comment-13237185
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dhruba borthakur commented on HDFS-3051:
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Hi colin, I agree that scatter/gather typically refers to multiple input tuples
of (position, length). Yes, we can extend the api to include that.
The reason my original proposal did not include that was because I was mostly
targetting this api to reduce the number of buffer copies.
> A zero-copy ScatterGatherRead api from FSDataInputStream
> --------------------------------------------------------
>
> Key: HDFS-3051
> URL: https://issues.apache.org/jira/browse/HDFS-3051
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
>
> It will be nice if we can get a new API from FSDtaInputStream that allows for
> zero-copy read for hdfs readers.
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