hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-14418) Make better SEEK vs SKIP decision with seek hints.
Date Sat, 12 Sep 2015 23:38:45 GMT

     [ https://issues.apache.org/jira/browse/HBASE-14418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Lars Hofhansl resolved HBASE-14418.
       Resolution: Invalid
    Fix Version/s:     (was: 0.98.12)
                       (was: 1.1.0)
                       (was: 1.0.1)
                       (was: 2.0.0)

Yeah. Creating the Cell, just to return the hint is what's taking up more time than the actual
seek. Closing for now. I might revisit this.

[~giacomotaylor], FYI.

> 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.

This message was sent by Atlassian JIRA

View raw message