[CASSANDRA-7486] Migrate to G1GC by default

• Type: New Feature
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 3.0 alpha 1
• Component/s: Local/Config
• Assignee: Unassigned Assign to me
• Reporter: Jonathan Ellis

Reviewers

Joshua McKenzie

• Created: 01/Jul/14 18:02
• Updated: 09/Nov/22 22:49
• Resolved: 28/Sep/15 16:09

Description

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.)

Issue Links

• is duplicated by: CASSANDRA-8932 Update default Garbage Collector GC on cassandra ps: Use G1GC instead of CMS
• is related to: CASSANDRA-10403 Consider reverting to CMS GC on 3.0
• is related to: CASSANDRA-18027 Use G1GC as default