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https://issues.apache.org/jira/browse/HBASE-9000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13806669#comment-13806669
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Chao Shi commented on HBASE-9000:
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I don't think tailSet is efficient, considering a scenario that a filter is
present and keep returning SEEK_NEXT_COL. A call to tailSet does not make use
of the current position and require relocate to there over the skip list. In
most cases, where maxVersions of a table is set to a small value, it can
alternatively skip at most maxVersions keys.
> Linear reseek in Memstore
> -------------------------
>
> Key: HBASE-9000
> URL: https://issues.apache.org/jira/browse/HBASE-9000
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.89-fb
> Reporter: Shane Hogan
> Priority: Minor
> Fix For: 0.89-fb
>
>
> This is to address the linear reseek in MemStoreScanner. Currently reseek
> iterates over the kvset and the snapshot linearly by just calling next
> repeatedly. The new solution is to do this linear seek up to a configurable
> maximum amount of times then if the seek is not yet complete fall back to
> logarithmic seek.
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