Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Plain View
HBase >> mail # user >> Acceptable CPU_WIO % ?


+
Jean-Marc Spaggiari 2013-02-08, 01:19
Copy link to this message
-
Re: Acceptable CPU_WIO % ?
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 <[EMAIL PROTECTED]
> 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
+
Jean-Marc Spaggiari 2013-02-08, 02:00
+
Kevin Odell 2013-02-08, 02:21
+
Jean-Marc Spaggiari 2013-02-08, 02:50
+
Kevin Odell 2013-02-08, 02:57
+
Jean-Marc Spaggiari 2013-02-08, 03:15
+
Azuryy Yu 2013-02-08, 03:23
+
Kevin Odell 2013-02-08, 13:56
+
Jean-Marc Spaggiari 2013-02-08, 15:43
+
Kevin Odell 2013-02-08, 16:37
+
Jean-Marc Spaggiari 2013-02-09, 16:13