Hadoop-Installation-Multinode

Question

Hi all I am trying to install the multinode hadoop installation. Everything works fine but my nodemanager for yarn is not working. When I looked at the log file for Yarn nodemanager, I got following information

"org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl: Initialized nodemanager for null: physical-memory=-1 virtual-memory=-2 virtual-cores=-1"

I have no idea why its not showing the actual memory and virtual core. My VM has 8GB memory and 8Vcpus. Because of above values I am getting this error:

"org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Recieved SHUTDOWN signal from Resourcemanager ,Registration of NodeManager failed, Message from ResourceManager: NodeManager from SFeUbuntuVM2 doesn't satisfy minimum allocations, Sending SHUTDOWN signal to the NodeManager"

Can someone help me out with this issue?

Answer 1

Check if you have

1. Selinux disabled
2. firewall disabled

Check your configuration files.

mapred-site.xml

<property>
    <name>mapreduce.framework.name</name>
    <value>yarn</value>
</property>

yarn-site.xml

<property>
    <name>yarn.resourcemanager.hostname</name>
    <value>{your host name}</value>
</property>

After all do format your namenode, and start all services again.