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From Brandon Williams <>
Subject Re: Cassandra operation success ratio survey results
Date Tue, 21 Sep 2010 20:29:59 GMT
On Tue, Sep 21, 2010 at 8:29 AM, Juho Mäkinen <>wrote:

> It's known that compaction hurts the node performance so that it might
> miss some requests. That's why it's important to handle these
> situations and the client needs to retry the operation into another
> working host. We have been storing performance data from each
> cassandra request which we do into our five node cassandra production
> cluster.

You should enable the dynamic snitch, since it's designed to route around
nodes that are not performing well, due to compaction or other problems:

Also, reducing the compaction thread's priority is a good idea:

These are on by default in 0.7, but require additional JVM args in 0.6


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