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https://issues.apache.org/jira/browse/CASSANDRA-3295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13120191#comment-13120191
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Jonathan Ellis commented on CASSANDRA-3295:
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But if you only have a 1GB machine there's not a whole lot we can do. :)
> reduce default heap size
> ------------------------
>
> Key: CASSANDRA-3295
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3295
> Project: Cassandra
> Issue Type: Improvement
> Affects Versions: 1.0.0
> Reporter: Jonathan Ellis
> Assignee: satish babu krishnamoorthy
> Priority: Minor
> Fix For: 1.0.0
>
> Attachments: 3295.patch
>
>
> With off-heap caching now the default and with auto-flushed memtables
> demonstrated to do a good job with smaller heaps, I think it's time to reduce
> heap sizes to decrease GC pause times.
> How does this sound?
> - half the ram, up to 512MB, or
> - 1/4 the ram, up to 4 GB
> i.e.:
> max(min(1/2 ram, 512MB), min(1/4 ram, 4GB))
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