Enhance memory emergency pressure valve
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Key: CASSANDRA-3534
URL: https://issues.apache.org/jira/browse/CASSANDRA-3534
Project: Cassandra
Issue Type: Improvement
Components: Core
Affects Versions: 1.1
Reporter: Vijay
Assignee: Vijay
Priority: Minor
Seems like when these thresholds are reached we are trying to reduce the
keycache and Memtable sizes, but in the trunk memtable is moved off-heap hence
reducing that will not actually help.
Reducing the keycache might help but we might want to provide a way to bring
the cache level back to the configured value when the pressure goes away.
Conversation from IRC: we might want to remove these setting all together after
global keycache.
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