Memory requirements

Vertica requires that your hosts have a minimum of 1GB of RAM per logical processor.

Individual host requirements

Vertica requires that your hosts have a minimum of 1GB of RAM per logical processor. If your hosts do not meet this requirement, the installer reports this issue with the identifier S0190.

For performance reasons, you typically require more RAM than the minimum. For more information on sizing your hardware, see the Vertica Knowledge Base Hardware documents.

RAM should be identical on all hosts

In addition to the individual host RAM requirement, the installer also reports a hint if the hosts in your cluster do not have identical amounts of RAM. Ensuring your host have the same amount of RAM helps prevent performance issues if one or more nodes has less RAM than the other nodes in your database.

Note

In an Eon Mode database, after you create the initial cluster, you can configure subclusters that have different hardware specifications (including RAM) than the initial primary subcluster the installer creates.