[CASSANDRA-3534] Remove memory emergency pressure valve

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 2.0 beta 1
• Assignee: Aleksey Yeschenko
• Reporter: Vijay

Authors

Aleksey Yeschenko

Reviewers

Jonathan Ellis

• Created: 26/Nov/11 01:59
• Updated: 16/Apr/19 09:32
• Resolved: 11/Mar/13 16:26

Description

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.

Issue Links

• is blocked by: CASSANDRA-3143 Global caches (key/row)