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From Josep Blanquer <blanq...@rightscale.com>
Subject Re: CFHistograms?
Date Sat, 07 May 2011 20:27:24 GMT
I believe the offset value of Writes and Reads are in *micro*seconds right?
(that page talks about *milli*seconds)

Also, are any timeouts or errors reflected in those times or just successful
operations? if not, is there any JMX or other tool to keep track of them?

 Josep M.

On Fri, May 6, 2011 at 9:09 AM, Jonathan Ellis <jbellis@gmail.com> wrote:

> Those are updated at compaction time.
>
> On Thu, May 5, 2011 at 11:38 PM, Xaero S <xaeros.s1@gmail.com> wrote:
> >
> > Can someone point me to a document that explains how to interpret
> > CFHistograms output? i went through
> >
> http://narendrasharma.blogspot.com/2011/04/cassandra-07x-understanding-output-of.html
> > which is a good beginning, but was wondering if there was anything more
> > detailed. For e.g when i run CFHistograms, i see rowsize and columncount
> > items in the table always 0 (which cant be right?)
> >
> > -Xaero
> >
>
>
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of DataStax, the source for professional Cassandra support
> http://www.datastax.com
>

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