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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Frequency of Flushing in 1.0
Date Fri, 24 Feb 2012 22:31:16 GMT
http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-improved-memory-and-disk-space-management

On Thu, Feb 23, 2012 at 6:05 PM, Xaero S <xaeros.s1@gmail.com> wrote:
>
> I recently started using Cassandra 1.0.4 and observed that it takes a lot
> longer to flush the commit logs to SSTables, than was observed in versions
> 0.7.X and 0.8.X under constant load conditions with commitlog_sync as
> periodic and commitlog_sync_period_in_ms as 10000. As more data gets
> retained in commit logs, if a node goes down, it will take longer for
> commitlog replay. I am wondering about the configuration options in 1.0 that
> are related to commit log and memtable flushing. What are the settings that
> help flush memtables more frequently or less frequently under constant load
> conditions?
>
> Would appreciate any help on this subject.
>



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

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