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https://issues.apache.org/jira/browse/HBASE-21917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16771229#comment-16771229
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stack commented on HBASE-21917:
-------------------------------
Thanks for hacking on this [~openinx]. IIRC, we want native checksum checking
to cut in. Is that happening here? If it is, small buffers means we cross the
native divide many times -- each of which costs -- rather than a few times?
> Make the HFileBlock#validateChecksum can accept ByteBuff as an input.
> ---------------------------------------------------------------------
>
> Key: HBASE-21917
> URL: https://issues.apache.org/jira/browse/HBASE-21917
> Project: HBase
> Issue Type: Sub-task
> Reporter: Zheng Hu
> Assignee: Zheng Hu
> Priority: Major
> Attachments: HBASE-21917.v1.patch, HBASE-21917.v2.patch,
> HBASE-21917.v3.patch, HBASE-21917.v4.patch
>
>
> I've tried to make a patch for HBASE-21879, most of work seems to be fine,
> but the trouble is:
> HFileBlock#validateChecksum can only accept ByteBuffer as its input, while
> after the HBASE-21916, we will use an ourself-defined ByteBuff (which can be
> SingleByteBuff or MultiByteBuff).
> Now, need to create our own ByteBuff checksum validation method, should not
> be so hard but an separate issue will be more clearer.
>
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