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https://issues.apache.org/jira/browse/HBASE-2970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Daniel Cryans resolved HBASE-2970.
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Resolution: Won't Fix
Resolving as won't fix because in practice I've never seen this to be an issue.
> Meta blocks should be given their own priority bucket in block cache
> --------------------------------------------------------------------
>
> Key: HBASE-2970
> URL: https://issues.apache.org/jira/browse/HBASE-2970
> Project: HBase
> Issue Type: Improvement
> Components: io, regionserver
> Reporter: Jonathan Gray
> Assignee: Jonathan Gray
>
> Bloom filters are currently using the LRU block cache. They are being
> treated as normal data blocks, however, it would be advantageous if we could
> treat me separately and give them their own portion of the LRU.
> What we've seen in practice is that some blooms get very big and are accessed
> frequently. This leads to blooms consuming a majority of the cache so lots
> of churn on data blocks.
> In any case, I think it is desirable in general to be able to control how
> much memory is used for blooms and other meta data.
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