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https://issues.apache.org/jira/browse/CASSANDRA-7486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14877316#comment-14877316
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Jonathan Shook commented on CASSANDRA-7486:
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This seems pretty open-and-shut where I would expect a bit more of a nuanced
test. We've honestly seen G1 be the operative improvement in some cases in the
field. I'd much prefer to see "needs more analysis" than to see it resolved as
fixed. CMS will *not* scale with hardware as we go forward. This is not in
debate.
> Migrate to G1GC by default
> --------------------------
>
> Key: CASSANDRA-7486
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7486
> Project: Cassandra
> Issue Type: New Feature
> Components: Config
> Reporter: Jonathan Ellis
> Assignee: Albert P Tobey
> Fix For: 3.0 alpha 1
>
>
> See
> http://www.slideshare.net/MonicaBeckwith/garbage-first-garbage-collector-g1-7486gc-migration-to-expectations-and-advanced-tuning
> and https://twitter.com/rbranson/status/482113561431265281
> May want to default 2.1 to G1.
> 2.1 is a different animal from 2.0 after moving most of memtables off heap.
> Suspect this will help G1 even more than CMS. (NB this is off by default but
> needs to be part of the test.)
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