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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14418) Make better SEEK vs SKIP decision with seek hints.
Date Sat, 12 Sep 2015 23:41:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14742268#comment-14742268
] 

Lars Hofhansl commented on HBASE-14418:
---------------------------------------

(if I could push the comparison to the Filter, which would avoid materializing the Cell, that
might work, but that we need a new Filter API)

> Make better SEEK vs SKIP decision with seek hints.
> --------------------------------------------------
>
>                 Key: HBASE-14418
>                 URL: https://issues.apache.org/jira/browse/HBASE-14418
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Lars Hofhansl
>         Attachments: 13109.txt, 14418-0.98.txt
>
>
> Continuation of parent.
> We can also do this optimization for seek hints. This would allow filters and coprocessors
to be more liberal with seek hints, as seeking when unnecessary is less of perf detriment.
> It's not quite as clear cut, since in order to check, we actually do need to create the
seek hint Cell. Then when we actually seek, we need to create it again. Need to test carefully.



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