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https://issues.apache.org/jira/browse/CASSANDRA-18027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17633692#comment-17633692
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Anthony Grasso commented on CASSANDRA-18027:
--------------------------------------------
I am in favour of switching to G1 as well. Most production clusters I've seen
are typically running with a heap size of 16 GB or higher which works well with
G1.
I agree with Elliott Sims's comment on the dev mailing list. Specifically, I
think this change should go into 4.1 onwards. However, I feel the change is too
significant to be back-ported to 4.0.
> Use G1GC as default
> -------------------
>
> Key: CASSANDRA-18027
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18027
> Project: Cassandra
> Issue Type: Task
> Components: Local/Config
> Reporter: Michael Semb Wever
> Assignee: Michael Semb Wever
> Priority: Normal
> Fix For: 4.x
>
>
> G1GC is well battle tested now, and the recommended configuration for most
> users. CMS can work well on smaller heaps but requires more tuning, initially
> and over time. G1GC just works. CMS was deprecated in JDK 9.
> Patch at
> https://github.com/apache/cassandra/compare/trunk...thelastpickle:cassandra:mck/7486/trunk
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