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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8817) Enhance The Apache HBase Reference Guide
Date Wed, 03 Jul 2013 05:42:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13698631#comment-13698631
] 

stack commented on HBASE-8817:
------------------------------

If you write up a few paragraphs and say where to insert in the refguide, I can do the addition
[~thomaspan]
                
> Enhance The Apache HBase Reference Guide
> ----------------------------------------
>
>                 Key: HBASE-8817
>                 URL: https://issues.apache.org/jira/browse/HBASE-8817
>             Project: HBase
>          Issue Type: Bug
>          Components: documentation
>            Reporter: Thomas Pan
>
> I am reading the guide here: http://hbase.apache.org/book.html#regions.arch
> I have noticed the following:
> - There is lack of coverage on scan. Note that Lars has a very good presentation from
last year's HBaseCon: http://www.slideshare.net/cloudera/3-learning-h-base-internals-lars-hofhansl-salesforce-final
> - Under section 9.7.6.1, there is no mentioning of flush per region if a memstore reached
the size threshold (and a possible flush of all memstores if over all memory usage of all
the memstores reached memstore.upperlimit). Note that people need to combine the information
provided in section 9 with section 2.3.1.1 to fully understand the situation.
> - Compaction tuning strategies. Both Nicolas from Facebook and Sergey from Hortonworks
have presented various compaction algorithms. Sometime, once all the necessary code is in
master, we need to have the coverage.
> Let me know how I can help on the matter.

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