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https://issues.apache.org/jira/browse/CASSANDRA-6633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas updated CASSANDRA-6633:
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Component/s: Core
> Dynamic Resize of Bloom Filters
> -------------------------------
>
> Key: CASSANDRA-6633
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6633
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Benedict
> Priority: Minor
> Labels: performance
> Fix For: 4.x
>
>
> Dynamic resizing would be useful. The simplest way to achieve this is to have
> separate address spaces for each hash function, so that we may
> increase/decrease accuracy by simply loading/unloading another function (we
> could even do interesting stuff in future like alternating the functions we
> select if we find we're getting more false positives than should be expected);
> Faster loading/unloading would help this, and we could achieve this by
> mmapping the bloom filter representation on systems that we can mlock.
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