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From "Jonathan Shook (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-7486) Migrate to G1GC by default
Date Sat, 19 Sep 2015 20:44:07 GMT


Jonathan Shook commented on CASSANDRA-7486:

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:
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Config
>            Reporter: Jonathan Ellis
>            Assignee: Albert P Tobey
>             Fix For: 3.0 alpha 1
> See
> 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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