[jira] [Commented] (CASSANDRA-3534) Enhance or remove memory emergency pressure valve

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-3534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13598846#comment-13598846 ] 

Jonathan Ellis commented on CASSANDRA-3534:
-------------------------------------------

+1. I'd also be fine with just removing reduceCacheSizes instead of leaving it as a no-op.
                
> Enhance or 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
>
>         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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira