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From "Kannan Muthukkaruppan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-4469) Avoid top row seek by looking up bloomfilter
Date Fri, 23 Sep 2011 18:49:28 GMT

     [ https://issues.apache.org/jira/browse/HBASE-4469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kannan Muthukkaruppan updated HBASE-4469:
-----------------------------------------

    Description: 
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.



  was:
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 will be
added to bloomfilter. We can take advantage of this factor to avoid seeking to the top of
row.




> 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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