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HDFS >> mail # user >> hadoop-env.sh file not exist in hadoop2.0 anymore ,and where i can tune JVM HEAPSIZE?


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hadoop-env.sh file not exist in hadoop2.0 anymore ,and where i can tune JVM HEAPSIZE?
hi,all:
  i have a big problem!!

  i try the two cluster ,one cluster is upgrade from cdh3 to cdh4 ,i
changed hadoop-env.sh ,and restart node ,the heapsize will change,
but on another cluster new installed cdh4.3 i find hadoop-env.sh has no
use,why? how can i change heapsize on the new cluster??