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https://issues.apache.org/jira/browse/HBASE-4469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13126336#comment-13126336
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Liyin Tang commented on HBASE-4469:
-----------------------------------

HBASE-4532 will enable delete family Bloom filter only when Row or None Bloom 
filter is enabled.
Because if there is a delete family the store file, the RowCol Bloom filter has 
already had this information.

                
> Avoid top row seek by looking up bloomfilter
> --------------------------------------------
>
>                 Key: HBASE-4469
>                 URL: https://issues.apache.org/jira/browse/HBASE-4469
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Liyin Tang
>            Assignee: Liyin Tang
>
> The problem is that when seeking for the row/col in the hfile, we will go to 
> top of the row in order to check for row delete marker (delete family). 
> However, if the bloomfilter is enabled for the column family, then if a 
> delete family operation is done on a row, the row is already being added to 
> bloomfilter. We can take advantage of this factor to avoid seeking to the top 
> of row.

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