CREATE NETWORK ADDRESS

Creates a network address that can be used as part of a connection load balancing policy. A network address creates a name in the Vertica catalog for an IP address and port number associated with a node. Nodes can have multiple network addresses, up to one for each IP address they have on the network.

Syntax

CREATE NETWORK ADDRESS name ON node WITH 'ip-address' [PORT port-number] [ENABLED | DISABLED]

Parameters

name

The name of the new network address. Use this name when creating connection load balancing groups.

node

The name of the node on which to create the network address. This should be name of the node as it appears in the node_name column of system table NODES.

ip-address

The IPv4 or and IPv6 address on the node to associate with the network address.

Note

Vertica does not verify that the IP address you supply in this parameter is actually associated with the specified node. Be sure that the IP address actually belongs to the node. Otherwise, your load balancing policy is liable to send a client connection to the wrong node, or a non-Vertica host. Vertica rejects IP address that are invalid for a node. For example, it checks whether the IP address falls in the loopback address range of 127.0.0.0/8. If it finds that the IP address is invalid, CREATE NETWORK ADDRESS returns an error.

PORT port-number

Sets the port number for the network address. You must supply a network address when altering the port number.

ENABLED | DISABLED

Enables or disables the network address.

Privileges

Superuser

Examples

Create three network addresses, one for each node in a three-node cluster:

=> SELECT node_name,export_address from v_catalog.nodes;
      node_name      | export_address
---------------------+----------------
 v_vmart_br_node0001 | 10.20.100.62
 v_vmart_br_node0002 | 10.20.100.63
 v_vmart_br_node0003 | 10.20.100.64
(3 rows)

=> CREATE NETWORK ADDRESS node01 ON v_vmart_br_node0001 WITH '10.20.100.62';
CREATE NETWORK ADDRESS
=> CREATE NETWORK ADDRESS node02 ON v_vmart_br_node0002 WITH '10.20.100.63';
CREATE NETWORK ADDRESS
=> CREATE NETWORK ADDRESS node03 ON v_vmart_br_node0003 WITH '10.20.100.64';

See also