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https://issues.apache.org/jira/browse/KAFKA-4850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16323184#comment-16323184
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Peter Davis commented on KAFKA-4850:
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Request: RocksDB memory usage (off Java heap) is already hard to fathom and can
be substantial, and [the
documentation|https://github.com/facebook/rocksdb/wiki/RocksDB-Bloom-Filter#memory-usage]
is anything but clear. If adding bloom filters affects memory usage, can the
impact please be documented?
> 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: 1.1.0
>
>
> 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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