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https://issues.apache.org/jira/browse/HBASE-13510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14537655#comment-14537655
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Anoop Sam John commented on HBASE-13510:
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We have 2 impls for BloomFilter interface. ie. CompoundBloomFilter and 
ByteBloomFilter.
We are not at all using ByteBloomFilter.(Which is having diff way of dealing 
with ROW_COL bloom key).   This was there in use for HFileV1 I believe.  So we 
can do those cleanup also.  We no loner need ByteBloomFilter as is a 
BloomFilter.  This class was having some util methods which now moved to a Util 
class (static methods)...   Still ByteBloomFilter is in use and used to store 
some state(in this patch)  .Can we avoid it fully ?

> Refactor Bloom filters to make use of Cell Comparators in case of ROW_COL
> -------------------------------------------------------------------------
>
>                 Key: HBASE-13510
>                 URL: https://issues.apache.org/jira/browse/HBASE-13510
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0
>
>         Attachments: HBASE-13510_1.patch, HBASE-13510_2.patch
>
>
> In order to address the comments over in HBASE-10800 related to comparing 
> Cell with a serialized KV's key we had some need for that in Bloom filters.  
> After discussing with Anoop, we found that it may be possible to 
> remove/modify some of the APIs in the BloomFilter interfaces and for doing 
> that we can purge ByteBloomFilter.  
> I read the code and found that ByteBloomFilter was getting used in V1 version 
> only.  Now as it is obsolete we can remove this code and move some of the 
> static APIs in ByteBloomFilter to some other util class or bloom related 
> classes which will help us in refactoring the code too.



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