I was testing if mapreduce is working properly on my cloudera 6.3, CDH 6.3.2 cluster. I have installed cloudera using one-click-installer Proof-of-concept one!   while i excecuted the below command as it is in this link https://docs.cloudera.com/documentation/other/tutorial/CDH5/topics/ht_usage.html     Command: sudo -u hdfs hadoop jar /opt/cloudera/parcels/CDH/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar pi 10 100   i Got below error:   WARNING: Use "yarn jar" to launch YARN applications. Number of Maps = 10 Samples per Map = 100 Wrote input for Map #0 Wrote input for Map #1 Wrote input for Map #2 Wrote input for Map #3 Wrote input for Map #4 Wrote input for Map #5 Wrote input for Map #6 Wrote input for Map #7 Wrote input for Map #8 Wrote input for Map #9 Starting Job 20/01/02 15:18:01 INFO client.RMProxy: Connecting to ResourceManager at ABC.xyz.net/192.168.xx.xx:8032 java.io.FileNotFoundException: File does not exist: hdfs://ABC.xyz.net:8020/user/yarn/mapreduce/mr-framework/3.0.0-cdh6.3.2-mr-framework.tar.gz at org.apache.hadoop.fs.Hdfs.getFileStatus(Hdfs.java:145) at org.apache.hadoop.fs.AbstractFileSystem.resolvePath(AbstractFileSystem.java:488) at org.apache.hadoop.fs.FileContext$25.next(FileContext.java:2225) at org.apache.hadoop.fs.FileContext$25.next(FileContext.java:2221) at org.apache.hadoop.fs.FSLinkResolver.resolve(FSLinkResolver.java:90) at org.apache.hadoop.fs.FileContext.resolve(FileContext.java:2227) at org.apache.hadoop.fs.FileContext.resolvePath(FileContext.java:607) at org.apache.hadoop.mapreduce.JobSubmitter.addMRFrameworkToDistributedCache(JobSubmitter.java:460) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:146) at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1570) at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1567) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1567) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1588) at org.apache.hadoop.examples.QuasiMonteCarlo.estimatePi(QuasiMonteCarlo.java:307) at org.apache.hadoop.examples.QuasiMonteCarlo.run(QuasiMonteCarlo.java:360) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76) at org.apache.hadoop.examples.QuasiMonteCarlo.main(QuasiMonteCarlo.java:368) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71) at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144) at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:74) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     Please help me understand the issue. Thanks for the reply. at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.util.RunJar.run(RunJar.java:313) at org.apache.hadoop.util.RunJar.main(RunJar.java:227) ... View more