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Date: Thu, 7 Feb 2013 20:43:41 -0500
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Subject: Re: Acceptable CPU_WIO % ?
From: "Kevin O'dell" <kevin.odell@cloudera.com>
To: user@hbase.apache.org
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Hey JM,

  Why RAID0?  That has a lot of disadvantages to using a JBOD
configuration?  Wait I/O is a symptom, not a problem.  Are you actually
experiencing a problem or are you treating for something you think should
be lower?

On Thu, Feb 7, 2013 at 8:19 PM, Jean-Marc Spaggiari <jean-marc@spaggiari.org
> wrote:

> Hi,
>
> What is an acceptable CPU_WIO % while running an heavy MR job? Should
> we also try to keep that under 10%? Or it's not realistic and we will
> see more about 50%?
>
> One of my nodes is showing 70% :( It's WAY to much. I will add another
> disk tomorrow and put them in RAID0, but I'm wondering how low shoud I
> go?
>
> JM
>


-- 
Kevin O'Dell
Customer Operations Engineer, Cloudera

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