Adding HDFS DataNodes to a Cluster

You can use Cloudera Director to increase the number of HDFS DataNodes in a cluster:

  1. Log in to Cloudera Director at http://director-server-hostname:7189.

    Cloudera Director opens with a list of clusters.

  2. If the cluster has a status of Ready, click the Actions list box to the right of the target cluster and select Modify Cluster.

    The Modify Cluster page appears, displaying the number of gateways, workers, and masters.

  3. On the Modify Cluster page, click Edit and increase the number of workers and gateways to the desired size.