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From Jonathan Ellis <>
Subject Re: Large column/row inserts
Date Thu, 27 May 2010 20:26:12 GMT
JVM GC pause?  If so the improved JVM options in 0.6.2 should help
some.  Increasing heap size is also a good candidate to help.

On Thu, May 27, 2010 at 2:01 PM, Jones, Nick <> wrote:
> Hi everyone,
> I'm using the Cassandra gem and have been trying to optimize inserting 400k-1M columns
per row.  I'm currently batching 1k column inserts and see about 130ms response times; however,
every 19th insert takes 3.3s.  Can anyone think of a reason for this?
> Thanks.
> Nick Jones

Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support

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