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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7850) Bulkload final step can detect and pre-split tables
Date Fri, 22 Feb 2013 23:06:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13584796#comment-13584796
] 

Nick Dimiduk commented on HBASE-7850:
-------------------------------------

When you say "final step of bulkload", are you speaking of the CompleteBulkLoad application,
or a MR job ending in HFileOutputFormat?
                
> Bulkload final step can detect and pre-split tables
> ---------------------------------------------------
>
>                 Key: HBASE-7850
>                 URL: https://issues.apache.org/jira/browse/HBASE-7850
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client
>            Reporter: Harsh J
>            Priority: Minor
>
> Many new devs (read: POC folks?) aren't aware of the pre-split feature of table creation,
given that its mostly manual. This leads to situations where a huge amount of data gets loaded
into a single or a small set of regions, causing further issues such as non-assignment or
lack of performance.
> Given that the final step of bulkload has a good picture of what they keys may look like,
it could split the table first if it detects certain conditions (we can go over this in comments)
and then perform the bulkload.

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