Setting Node Type

When you create a node, Vertica automatically sets its type to PERMANENT. This enables Vertica to use this node to store data. You can change a node's type with ALTER NODE, to one of the following:

• EPHEMERAL: A node that is in transition from one type to another—typically, from PERMANENT to either STANDBY or EXECUTE.
• STANDBY: A node that is reserved to replace any node when it goes down. When used as a replacement node, Vertica changes its type to PERMANENT. A standby node stores no segments or data until it is called to replace a down node. At that time, Vertica changes its type to PERMANENT. For more information, see Active Standby Nodes.
• EXECUTE:  A node that is reserved for computation purposes only. An execute node contains no segments or data.

  Eon Mode does not support EXECUTE nodes.