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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Avoiding the system IO cache for compaction
Date Wed, 03 Aug 2011 04:42:49 GMT
Tried and failed. https://issues.apache.org/jira/browse/CASSANDRA-1902

On Tue, Aug 2, 2011 at 11:24 PM, Jason Rutherglen
<jason.rutherglen@gmail.com> wrote:
> Cassandra 'compacts' the way Lucene 'merges' segments.  One
> interesting new feature built into Lucene is [1] which avoids loading
> the source files into the system IO cache on compaction / merge.
>
> Perhaps Cassandra already has this feature?
>
> 1. https://builds.apache.org/job/Lucene-trunk/javadoc/all/org/apache/lucene/store/DirectIOLinuxDirectory.html
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com

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