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https://issues.apache.org/jira/browse/HDFS-14402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16850578#comment-16850578
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Feilong He commented on HDFS-14402:
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Thanks [~rakeshr] for your valuable comments. I have opened another Jira
HDFS-14518 for optimizing HDFS cache checksum and making checksum configurable.
Anyone's suggestion is aways welcome!
> Use FileChannel.transferTo() method for transferring block to SCM cache
> -----------------------------------------------------------------------
>
> Key: HDFS-14402
> URL: https://issues.apache.org/jira/browse/HDFS-14402
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: caching, datanode
> Reporter: Feilong He
> Assignee: Feilong He
> Priority: Major
> Labels: SCM
> Fix For: 3.3.0
>
> Attachments: HDFS-14402.000.patch, HDFS-14402.001.patch,
> HDFS-14402.002.patch, With-Cache-Improvement-Patch.png,
> Without-Cache-Improvement-Patch.png
>
>
> We will consider to use transferTo API to improve SCM's cach performace.
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