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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2009/11/11 01:51:28 UTC

[jira] Updated: (HBASE-1938) Make in-memory table scanning faster

     [ https://issues.apache.org/jira/browse/HBASE-1938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HBASE-1938:
-------------------------

    Attachment: test.patch

A little test that loads up a MemStore then does a Scan.  For profiling.

> Make in-memory table scanning faster
> ------------------------------------
>
>                 Key: HBASE-1938
>                 URL: https://issues.apache.org/jira/browse/HBASE-1938
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: stack
>            Assignee: stack
>            Priority: Blocker
>             Fix For: 0.21.0
>
>         Attachments: test.patch
>
>
> This issue is about profiling hbase to see if I can make hbase scans run faster when all is up in memory.  Talking to some users, they are seeing about 1/4 million rows a second.  It should be able to go faster than this (Scanning an array of objects, they can do about 4-5x this).

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