Cluster Layout

Vertica supports two cluster architectures for Hadoop integration. Which architecture you use affects the decisions you make about integration with HDFS. These options might also be limited by license terms.

• You can co-locate Vertica on some or all of your Hadoop nodes. Vertica can then take advantage of data locality.
• You can build a Vertica cluster that is separate from your Hadoop cluster. In this configuration, Vertica can fully use each of its nodes; it does not share resources with Hadoop.

With either architecture, if you are using the hdfs scheme to read ORC or Parquet files, you must do some additional configuration.  See Configuring the hdfs Scheme.