[ 
https://issues.apache.org/jira/browse/CASSANDRA-863?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Brandon Williams updated CASSANDRA-863:
---------------------------------------

    Attachment: 863.txt

Patch to disable row cache and set key cache at 1M for both CFs.  Tested with 
both CF caches fully populated and the JVM is using ~500MB w/stress.py keys 
which is a fair amount for a 1G JVM.

> Default cache levels should be explicit, not percentage
> -------------------------------------------------------
>
>                 Key: CASSANDRA-863
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-863
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.6
>            Reporter: Brandon Williams
>            Assignee: Brandon Williams
>            Priority: Trivial
>             Fix For: 0.6
>
>         Attachments: 863.txt
>
>
> Now that we can specify  explicit numbers for row and key caches, the default 
> config should use this.  The reason is that it's very easy to grow your keys 
> and not realize a percentage is going to get you eventually.  It's better to 
> have a system that has a low cache hit rate and keeps going than a system 
> that encounters memory pressure from overpopulating its cache and slows to a 
> crawl or dies.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Reply via email to