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Joshua McKenzie commented on CASSANDRA-7486: -------------------------------------------- Seems reasonable to me and glad to have that documented in the ticket (hint hint). Last question I have before commit is for [~ato...@datastax.com] (though anyone's welcome to chime in): Why did we settle on 500ms for our MaxGCPauseMillis? Was that also part of an offline conversation, or are we just rolling with the #'s Michael used above? Do we have any test data to show that 500 is a solid default for our use case rather than the pre-packaged 200 for g1 or the 2000 you'd used above for some testing? > 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 beta 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.) -- This message was sent by Atlassian JIRA (v6.3.4#6332)