hadoop only launch local job by default why?

Question

I have written my own hadoop program and I can run using pseudo distribute mode in my own laptop, however, when I put the program in the cluster which can run example jar of

Answer 1

If you're using Hadoop 2 and your job is running locally instead of on the cluster, ensure that you have setup mapred-site.xml to contain the mapreduce.framework.name property with a value of yarn. You also need to set up an aux-service in yarn-site.xml

Checkout the Cloudera Hadoop 2 operator migration blog for more information.