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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2014/02/20 20:13:27 UTC
[jira] [Updated] (CASSANDRA-3534) Remove memory emergency pressure
valve
[ https://issues.apache.org/jira/browse/CASSANDRA-3534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-3534:
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Summary: Remove memory emergency pressure valve (was: Enhance or remove memory emergency pressure valve)
> Remove memory emergency pressure valve
> --------------------------------------
>
> Key: CASSANDRA-3534
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3534
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.1.0
> Reporter: Vijay
> Assignee: Aleksey Yeschenko
> Priority: Minor
> Fix For: 2.0 beta 1
>
> Attachments: 3534.txt
>
>
> 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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