reduce default heap size
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Key: CASSANDRA-3295
URL: https://issues.apache.org/jira/browse/CASSANDRA-3295
Project: Cassandra
Issue Type: Improvement
Affects Versions: 1.0.0
Reporter: Jonathan Ellis
Assignee: Brandon Williams
Priority: Minor
Fix For: 1.0.0
With off-heap caching now the default and with auto-flushed memtables
demonstrated to do a good job with smaller heaps, I think it's time to reduce
heap sizes to decrease GC pause times.
How does this sound?
- half the ram, up to 512MB, or
- 1/4 the ram, up to 4 GB
i.e.:
max(min(1/2 ram, 512MB), min(1/4 ram, 4GB))
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