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https://issues.apache.org/jira/browse/HBASE-17877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15973578#comment-15973578
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Steve Loughran commented on HBASE-17877:
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bq Also while looking at some UnsignedBytes function for the guava version we
were using I noticed that guava v14.0.1 also uses this implementation so
probably hadoop borrowed it from there ..
I was about to say "no it doesn't", but then I saw the comment at the top,
"This is borrowed and slightly modified from Guava's". Been in there a long
time though (since 2012), so it's history is lost. x86 pert is what really
matters, though we don't want to be pathologically antisocial to the other CPU
arches, not just for the sake of PPC, but for when Arm goes mainstream in the
DC.
> Replace/improve HBase's byte[] comparator
> -----------------------------------------
>
> Key: HBASE-17877
> URL: https://issues.apache.org/jira/browse/HBASE-17877
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Assignee: Vikas Vishwakarma
> Attachments: 17877-1.2.patch, 17877-v2-1.3.patch, 17877-v3-1.3.patch,
> 17877-v4-1.3.patch, ByteComparatorJiraHBASE-17877.pdf,
> HBASE-17877.branch-1.3.001.patch, HBASE-17877.branch-1.3.002.patch,
> HBASE-17877.master.001.patch, HBASE-17877.master.002.patch
>
>
> [~vik.karma] did some extensive tests and found that Hadoop's version is
> faster - dramatically faster in some cases.
> Patch forthcoming.
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