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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15410) Utilize the max seek value when all Filters in MUST_PASS_ALL FilterList return SEEK_NEXT_USING_HINT
Date Thu, 12 Oct 2017 17:27:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16202319#comment-16202319
] 

Josh Elser commented on HBASE-15410:
------------------------------------

bq. I don't expect an optimization as described in the release notes to require changing test
behavior.

That does strike me a bit strange. Looking closer, it looks like these test cases are actually
testing what the hint passed to the filter was. In other words, it's essentially testing the
optimization (not just how users interact with the Filters).

v3 seems fine to me, but would be nice to wait for [~busbey] to circle back around since he
was also looking at this in HBASE-18957. We don't need to make more work for each other.



> Utilize the max seek value when all Filters in MUST_PASS_ALL FilterList return SEEK_NEXT_USING_HINT
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-15410
>                 URL: https://issues.apache.org/jira/browse/HBASE-15410
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>              Labels: filter, perfomance
>             Fix For: 1.5.0, 2.0.0-alpha-3, HBASE-18410
>
>         Attachments: 15410-wip.patch, 15410.branch-1.patch, 15410.v1.patch, 15410.v2.patch,
15410.v3.patch
>
>
> As Preston mentioned in the comment in HBASE-15243:
> https://issues.apache.org/jira/browse/HBASE-15243?focusedCommentId=15143557&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15143557
> An optimization for filters returning a SEEK_NEXT_USING_HINT would be to seek to the
highest hint (Any previous/lower row won't be accepted by the filter returning that seek).
> This JIRA is to explore this potential optimization.



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