Hadoop/HBase node shutdown

[Farshad Kazemzadeh]

Hello,
 
I am trying to take down 9 nodes out of our 20 node Hadoop/HBase cluster.  What 
is the best way to do this without having to shut down the entire cluster and 
have things to continue to run without a hiccup?
 
Thank you in advance,
FarshadK                                          
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