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Posted to commits@cassandra.apache.org by "Chris Burroughs (JIRA)" <ji...@apache.org> on 2013/09/30 01:58:24 UTC

[jira] [Issue Comment Deleted] (CASSANDRA-5906) Avoid allocating over-large bloom filters

     [ https://issues.apache.org/jira/browse/CASSANDRA-5906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Burroughs updated CASSANDRA-5906:
---------------------------------------

    Comment: was deleted

(was: FYI released a version of stream-lib today.)

> Avoid allocating over-large bloom filters
> -----------------------------------------
>
>                 Key: CASSANDRA-5906
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5906
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Yuki Morishita
>             Fix For: 2.0.2
>
>
> We conservatively estimate the number of partitions post-compaction to be the total number of partitions pre-compaction.  That is, we assume the worst-case scenario of no partition overlap at all.
> This can result in substantial memory wasted in sstables resulting from highly overlapping compactions.



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