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Posted to commits@cassandra.apache.org by "Vijay (JIRA)" <ji...@apache.org> on 2012/08/14 02:55:38 UTC

[jira] [Updated] (CASSANDRA-3534) Enhance memory emergency pressure valve

     [ https://issues.apache.org/jira/browse/CASSANDRA-3534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vijay updated CASSANDRA-3534:
-----------------------------

    Assignee:     (was: Vijay)
    
> Enhance 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
>            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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