When testing the example I got this error 😕 : 16/03/01 01:57:29 INFO mapreduce.Job: Task Id : attempt_1456773989186_0006_r_000001_2, Status : FAILED Error: java.lang.RuntimeException: PipeMapRed.waitOutputThreads(): subprocess failed with code 1 at org.apache.hadoop.streaming.PipeMapRed.waitOutputThreads(PipeMapRed.java:322) at org.apache.hadoop.streaming.PipeMapRed.mapRedFinished(PipeMapRed.java:535) at org.apache.hadoop.streaming.PipeReducer.close(PipeReducer.java:134) at org.apache.hadoop.io.IOUtils.cleanup(IOUtils.java:244) at org.apache.hadoop.mapred.ReduceTask.runOldReducer(ReduceTask.java:459) at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:392) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) 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:1657) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162) ... View more

@Neeraj Sabharwal Thank u for your answer ... View more

@Artem Ervits thanks 🙂 ... View more

Thanks all, I used this method to setup the hostname and it worked ! My cluster is running now 🙂 ... View more

I added this lines to /etc/hosts in every VM 10.10.10.1 VM1.local VM1 10.10.10.2 VM2.local VM2 10.10.10.3 VM3.local VM3 10.10.10.4 VM4.local VM4 Now i'm able to use "ping VMx" from every VM and ssh user@VMx works too. hostname -f returns VMx.local is this fine ? ... View more

@Neeraj Sabharwal Do you recommend using Ambari or manual installation ? in the case of using Ambari, i went through documentation and didn’t find where I can allocate space for logs. Thanks. ... View more

@Neeraj Sabharwal Thank you for your answer. This is a development and test environment 🙂 ... View more