Hi everybody, I have created a cluster hadoop (When create Node group template, I have modified mapred.child.java.opts: "-Xmx200m" to "-Xmx1024m"). Then i ssh to master-instance and run: "hadoop jar hadoop-examples-1.2.1.jar pi 10 100", I get the error: java.lang.OutOfMemoryError: Java heap space
Check file /etc/hadoop/hadoop-env.sh. I see: Default: export HADOOP_CLIENT_OPTS="-Xmx128m HADOOP_CLIENT_OPTS" Then, I edit 128 to 1024: export HADOOP_CLIENT_OPTS="-Xmx1024m $HADOOP_CLIENT_OPTS" When run "hadoop jar hadoop-examples-1.2.1.jar pi 10 100", it's worked! But, my cluster still in a state: "Watting" and ip_master:50030/jobtracker.jps not running? Why HADOOP_CLIENT_OPTS in /etc/hadoop/hadoop-env.sh not automatic update when create cluster? What is the problem here? Thank you very much!
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