Use the following instructions:
Install Hadoop Core packages on the entire cluster using the instructions provided here.
Ensure that you complete the following set-up requirements for NameNode machines:
Use the floating IP for the NameNode network location (
$DFS_NAME_DIR). Add a DNS entry with a hostname that points to the floating IP address. Use this hostname to specify the NameNode host address.Configure the NameNode data directory as a child of the mounted shared storage directory. For example, if you have the NFS directory mounted at
/hdp/hdfs/nn, then the NameNode data directory should be configured to be at the following location:/hdp/hdfs/nn/data.Replicate the above set-up of the NameNode machine on all the machines in your RHEL HA cluster. Ensure that each machine in the RHEL HA cluster has identical HDP packages and add-on libraries.
Ensure that you complete the following set-up requirements for JobTracker machines:
Use the floating IP for the JobTracker network location. Add a DNS entry with a hostname that points to the floating IP address. Use this hostname to specify the JobTracker host address.
Replicate the above set-up of the JobTracker machine on all the machines in your RHEL HA cluster that you want to run the JobTracker on. Ensure that each machine in the RHEL HA cluster has identical HDP packages and add-on libraries.
