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https://issues.apache.org/jira/browse/CASSANDRA-5935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13749794#comment-13749794
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Jonathan Ellis commented on CASSANDRA-5935:
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Note that I've deliberately omitted this setting from cassandra.yaml; see above
on "almost certainly a Bad Idea."
> Allow disabling slab allocation
> -------------------------------
>
> Key: CASSANDRA-5935
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5935
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Priority: Minor
> Fix For: 1.2.9
>
> Attachments: 5935.txt
>
>
> Arena allocation (CASSANDRA-2252) dramatically improves garbage collection
> performance, but it can limit the number of tables that can be practically
> defined in the schema since you have a minimum of 1MB of heap per table.
> Although having more than dozens or hundreds of tables defined is almost
> certainly a Bad Idea (just as it is a design smell in a relational database),
> it's relatively straightforward to allow disabling the SlabAllocator.
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