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-m...@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