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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1200) Add bloomfilters
Date Wed, 12 May 2010 17:56:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12866659#action_12866659
] 

stack commented on HBASE-1200:
------------------------------

Nicolas, I tried applying this last version of the patch but I get rejects that I'm not sure
how to resolve still -- the ones I attached above.  Can you guide me on how to resolve these?
 Thanks.  I'm trying to get this in.  Yeah, lets open a new JIRA to address the Array.add
issue Todd raises.  Good stuff.

> Add bloomfilters
> ----------------
>
>                 Key: HBASE-1200
>                 URL: https://issues.apache.org/jira/browse/HBASE-1200
>             Project: Hadoop HBase
>          Issue Type: Task
>    Affects Versions: 0.20.5
>            Reporter: stack
>            Assignee: Nicolas Spiegelberg
>             Fix For: 0.20.5
>
>         Attachments: Bloom Filters in HBase.docx, Bloom_Filters_in_HBase.pdf, HBASE-1200-0.20.5-4.patch,
HBASE-1200-0.20.5.patch, hbase-1200-0.20branch-v2.txt, ryan_bloomfilter.patch, Store.java.rej,
StoreScanner.java.rej
>
>
> Add bloomfiltering to hfile.  Can be enabled on a family-level basis.  Ability to configure
a row vs row+col level bloom.  We size the bloomfilter with the number of entries we are about
to flush which seems like usually we'd be making a filter too big, so our implementation needs
to take that into account.

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