Administering HDFS
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Prerequisites to manually add slave nodes

Make sure the ports are available, the database is deployed, and the correct JDK version is installed on all the nodes in the cluster.

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

  • At each of your hosts:

    • yum (RHEL)

    • zypper (SLES)

    • rpm

    • scp

    • curl

    • wget

    • unzip

    • tar

    • pdsh

  • Ensure that all of the ports 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, see "Meet Minimum System Requirements" in the Installing HDP Manually guide.

  • Your system must have the correct JDK installed on all of the nodes in the cluster. For more information, see "Meet Minimum System Requirements" in the Installing HDP Manually guide.