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From Robert Coli <>
Subject Re: commitlog partition
Date Mon, 16 Sep 2013 17:05:36 GMT
On Mon, Sep 16, 2013 at 8:08 AM, Keith Freeman <> wrote:

> I'm spec'ing out some hardware for a small cassandra cluster.  I know the
> recommendation (v1.2+) on spinning media is to have the commitlog on a
> separate physical disk from the data, but is it considered ok for
> performance to put the commitlog on a partition of the OS's disk?

Separate commitlog wins when the head doesn't move between appends. Your OS
will occasionally move the head to write, f/e, logs. It's probably "ok",
depending on what "ok" means to you. :)


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