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https://issues.apache.org/jira/browse/CASSANDRA-8150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14573226#comment-14573226
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Benedict commented on CASSANDRA-8150:
-------------------------------------
2.1.6, which is voting now, will be given the "production ready" label. There
are still some problems with 2.1.5 that prevent us giving it that label. My
understanding is that the DSE release does not have these problems.
> Revaluate Default JVM tuning parameters
> ---------------------------------------
>
> Key: CASSANDRA-8150
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8150
> Project: Cassandra
> Issue Type: Improvement
> Components: Config
> Reporter: Matt Stump
> Assignee: Ryan McGuire
> Attachments: upload.png
>
>
> It's been found that the old twitter recommendations of 100m per core up to
> 800m is harmful and should no longer be used.
> Instead the formula used should be 1/3 or 1/4 max heap with a max of 2G. 1/3
> or 1/4 is debatable and I'm open to suggestions. If I were to hazard a guess
> 1/3 is probably better for releases greater than 2.1.
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