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I downloaded the VM from https://downloads.cloudera.com/demo_vm/vmware/cloudera-demo-vm-cdh4.0.0-vmware.tar.gz I found that below listed services are running after the system boots. MRV1 Services hadoop-0.20-mapreduce-jobtracker hadoop-0.20-mapreduce-tasktracker MRV2 services hadoop-yarn-nodemanager hadoop-yarn-resourcemanager hadoop-mapreduce-historyserver HDFS Services hadoop-hdfs-namenode hadoop-hdfs-datanode The word count example runs fine and generates the output as expected /usr/bin/hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar wordcount input output However, the above runs using the MRv2 - YARN framework My goal is to run using MRv1. As suggested on the Cloudera documentation, I stop the MRV2 services, and edited /etc/hadoop/conf/mapred-site.xml <property> <name>mapreduce.framework.name</name> <value>yarn</value> </property to "classic" (also tried "local") <property> <name>mapreduce.framework.name</name> <value>classic</value> </property I expected it to run using MRV1 (jobtracker and tasktracker). However, I see the following error: 12/10/10 21:48:39 INFO mapreduce.Cluster: Failed to use org.apache.hadoop.mapred.LocalClientProtocolProvider due to error: Invalid "mapreduce.jobtracker.address" configuration value for LocalJobRunner : "172.30.5.21:8021" 12/10/10 21:48:39 ERROR security.UserGroupInformation: PriviledgedActionException as:cloudera (auth:SIMPLE) cause:java.io.IOException: Cannot initialize Cluster. Please check your configuration for mapreduce.framework.name and the correspond se

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