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Posted to dev@kafka.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/05/14 05:51:04 UTC

[jira] [Commented] (KAFKA-4850) RocksDb cannot use Bloom Filters

    [ https://issues.apache.org/jira/browse/KAFKA-4850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16009608#comment-16009608 ] 

ASF GitHub Bot commented on KAFKA-4850:
---------------------------------------

GitHub user bharatviswa504 opened a pull request:

    https://github.com/apache/kafka/pull/3048

    KAFKA-4850:RocksDb cannot use Bloom Filters

    Added BloomFilter to speedup rocksdb lookup.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/bharatviswa504/kafka KAFKA-4850

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/kafka/pull/3048.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #3048
    
----
commit 66946fb8327f6077c28a5693b93782ded1234c63
Author: Bharat Viswanadham <bh...@us.ibm.com>
Date:   2017-05-13T19:09:28Z

    KAFKA-4850:RocksDb cannot use Bloom Filters

----


> RocksDb cannot use Bloom Filters
> --------------------------------
>
>                 Key: KAFKA-4850
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4850
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>    Affects Versions: 0.10.2.0
>            Reporter: Eno Thereska
>            Assignee: Bharat Viswanadham
>             Fix For: 0.11.0.0
>
>
> Bloom Filters would speed up RocksDb lookups. However they currently do not work in RocksDb 5.0.2. This has been fixed in trunk, but we'll have to wait until that is released and tested. 
> Then we can add the line in RocksDbStore.java in openDb:
> tableConfig.setFilter(new BloomFilter(10));



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