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https://issues.apache.org/jira/browse/CASSANDRA-4087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13239856#comment-13239856
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Yuki Morishita commented on CASSANDRA-4087:
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You can override (accidentally) by setting empty value in cassandra.yaml. In
that case, you get null.
> Improve out-of-the-box cache settings
> -------------------------------------
>
> Key: CASSANDRA-4087
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4087
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 1.1.0
> Reporter: Jonathan Ellis
> Assignee: Pavel Yaskevich
> Fix For: 1.1.0
>
> Attachments: CASSANDRA-4087.patch
>
>
> The default key cache of 2MB is significantly smaller than <= 1.0 (200 rows
> per CF) and much smaller than most production uses. How about min(5% of the
> heap, 100MB)?
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