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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Disk usage for CommitLog
Date Tue, 30 Aug 2011 02:27:35 GMT
On Mon, Aug 29, 2011 at 8:04 PM, Derek Andree <dandree@lacunasystems.com> wrote:
> Is there an easy way to keep commit log size down without killing performance?

There is in 1.0: commitlog_total_space_in_mb, added in
https://issues.apache.org/jira/browse/CASSANDRA-2427.

Until then you'll have to make sure that you're flushing often enough
to keep the space down.  memtable_flush_after [minutes] can help with
that.

If you're running 0.8.x, also make sure you're running >= 0.8.3 to
make sure https://issues.apache.org/jira/browse/CASSANDRA-2829 isn't
making things worse.

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

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