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https://issues.apache.org/jira/browse/HBASE-1935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999497#comment-12999497
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Otis Gospodnetic commented on HBASE-1935:
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I'm wondering what sort of a speed improvement one can expect from parallel
scans? I know there is no universal answer, but if anyone has used this, I'd
love to get the feeling for this. Thanks.
> Scan in parallel
> ----------------
>
> Key: HBASE-1935
> URL: https://issues.apache.org/jira/browse/HBASE-1935
> Project: HBase
> Issue Type: New Feature
> Components: coprocessors
> Reporter: stack
> Fix For: 0.92.0
>
> Attachments: pscanner-v2.patch, pscanner-v3.patch, pscanner-v4.patch,
> pscanner.patch
>
>
> A scanner that rather than scan in series, instead scanned multiple regions
> in parallell would be more involved but could complete much faster
> partiularly if results are sparse.
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