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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11682) Explain hotspotting
Date Wed, 06 Aug 2014 16:13:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14087839#comment-14087839
] 

Nick Dimiduk commented on HBASE-11682:
--------------------------------------

bq. However, using totally random row keys for data which is accessed sequentially would remove
the benefit of HBase's row-sorting algorithm and cause very poor performance, as each get
or scan would need to query all regions.

Prefixing with random byte prevents any meaningful use of scans; gets become your only option.
This approach is indistinguishable from hashing the rowkey.

I like the rest of the updates, +1

Thanks a lot [~misty]!

> Explain hotspotting
> -------------------
>
>                 Key: HBASE-11682
>                 URL: https://issues.apache.org/jira/browse/HBASE-11682
>             Project: HBase
>          Issue Type: Task
>          Components: documentation
>            Reporter: Misty Stanley-Jones
>            Assignee: Misty Stanley-Jones
>         Attachments: HBASE-11682-1.patch, HBASE-11682.patch
>
>




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