title: Can we have cloudera CDH5 configurations generator?
body: <p>I am using 5 node cloudera cluster ( 4 datanodes and 1 namenode ) to run CDH5 certification suite.</p>
  
  <p>Each of the five nodes have 128GB of RAM and 40 CPU cores.
  cert. suite fails with OutOfMemory errors. </p>
  
  <p>( I am struggling to fix this for last 7-8 days without success. It also failed with default CDH configuration settings )
  I have tried running the test suite by changing hell lot of combination of HDFS and YARN configurations. ( including JAVA_OPTS / MAVEN_OPTS ) etc.</p>
  
  <p>I was thinking It would have been very useful / easy for users if there was an setting/app or something which could generate all ideal configuration files for given cluster setup. ( Considering RAM/CPU etc. )
  i.e It will take info. from user like how many nodes, each nodes RAM, each nodes CPU etc and generate yarn, hdfs configuration parameters.</p>