Ensure that the new slave nodes meet the following prerequisites:
The following operating systems are supported:
64-bit Red Hat Enterprise Linux (RHEL) 5 or 6
64-bit CentOS 5 or 6
64-bit SUSE Linux Enterprise Server (SLES) 11, SP1
On each of your hosts:
yum (RHEL)
zypper (SLES)
rpm
scp
curl
wget
unzip
tar
pdsh
Ensure that all of the ports listed here are available.
To install Hive metastore or to use an external database for Oozie metastore, ensure that you deploy either a MySQL or an Oracle database in your cluster. For instructions, refer to this topic.
Your system must have the correct JDK installed on all of the nodes in the cluster. For more information, see JDK Requirements.
