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https://issues.apache.org/jira/browse/HBASE-17291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15779631#comment-15779631
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ramkrishna.s.vasudevan commented on HBASE-17291:
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I shall commit this patch too then as HBASE-17081 is in now.
> Remove ImmutableSegment#getKeyValueScanner
> ------------------------------------------
>
> Key: HBASE-17291
> URL: https://issues.apache.org/jira/browse/HBASE-17291
> Project: HBase
> Issue Type: Improvement
> Components: Scanners
> Affects Versions: 2.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 2.0.0
>
> Attachments: HBASE-17291.patch, HBASE-17291_1.patch,
> HBASE-17291_2.patch
>
>
> This is based on a discussion over [~anastas]'s patch. The MemstoreSnapshot
> uses a KeyValueScanner which actually seems redundant considering we already
> have a SegmentScanner. The idea is that the snapshot scanner should be a
> simple iterator type of scanner but it lacks the capability to do the
> reference counting on that segment that is now used in snapshot. With
> snapshot having mulitple segments in the latest impl it is better we hold on
> to the segment by doing ref counting.
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