Hadoop cluster setup - java.net.ConnectException: Connection refused

Question

I want to setup a hadoop-cluster in pseudo-distributed mode. I managed to perform all the setup-steps, including startuping a Namenode, Datanode, Jobtracker and a Tasktracke

Answer 1

hduser@marta-komputer:/usr/local/hadoop$ jps

11696 ResourceManager

11842 NodeManager

11171 NameNode

11523 SecondaryNameNode

12167 Jps

Where is your DataNode? Connection refused problem might also be due to no active DataNode. Check datanode logs for issues.

UPDATED:

For this error:

15/03/01 00:59:34 INFO client.RMProxy: Connecting to ResourceManager at /0.0.0.0:8032 java.net.ConnectException: Call From marta-komputer.home/192.168.1.8 to marta-komputer:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused

Add these lines in yarn-site.xml:

yarn.resourcemanager.address
192.168.1.8:8032


yarn.resourcemanager.scheduler.address
192.168.1.8:8030


yarn.resourcemanager.resource-tracker.address
192.168.1.8:8031

Restart the hadoop processes.