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https://issues.apache.org/jira/browse/CASSANDRA-10425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne resolved CASSANDRA-10425.
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Resolution: Won't Fix
I understand the problem you are trying to solve, which is to help user not
being stuck on outdated defaults (for their current hardware), but both me and
at least [~iamaleksey] and [~JoshuaMcKenzie] (from an offline conversation)
agree that auto-tuning feels like the wrong approach to it, and you seem to at
least partly agree on that part (if I don't badly misinterpret your comment),
so I'm gonna close that ticket if you don't mind as I think CASSANRA-11006 is a
more open ticket for the actual problem.
> Autoselect GC settings depending on system memory
> -------------------------------------------------
>
> Key: CASSANDRA-10425
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10425
> Project: Cassandra
> Issue Type: Improvement
> Components: Configuration
> Reporter: Jonathan Shook
>
> 1) Make GC modular within cassandra-env
> 2) For systems with 32GB or less of ram, use the classic CMS with the
> established default settings.
> 3) For systems with 48GB or more of ram, use 1/2 or up to 32GB of heap with
> G1, whichever is lower.
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