Progress
Installation and Configuration Guide
Version 9
for Windows
Configuring and Using NameServer Instances
You can configure two types of NameServer instance, determined by its function as the controlling NameServer for a Unified Broker instance:
When you configure a local NameServer instance, you can set all properties for the NameServer. When you configure a remote NameServer instance, you can only set its location (host and port) properties to identify the local NameServer instance that it references. When you want to start, stop, or obtain status on a running NameServer, you must always perform these actions on a local instance. You cannot start, stop, or obtain status on a remote NameServer instance.
How Unified Brokers Use NameServer Instances
To use a local NameServer instance as its controlling NameServer, a Unified Broker instance must run on the same machine where the local NameServer instance runs. Remote NameServer instances provide a way of having multiple Unified Broker instances use a controlling NameServer that runs on a different machine from the Unified Broker instances.
Whether local or remote, the NameServer instance that you define as the controlling NameServer must be defined on the same machine as the Unified Broker instance it controls. If the controlling NameServer instance is local, it runs on the same machine as the Unified Broker. If the controlling NameServer instance is remote, it references a NameServer running locally on a machine that is remote from the Unified Broker.
Thus, any remote NameServer instance you define must have a corresponding local NameServer instance defined on the machine where it runs, and you must define one such remote NameServer instance on each remote machine where a Unified Broker instance references this same corresponding local NameServer instance as its controlling NameServer.
NameServer Instances and Client Connections
Unified Broker clients do not use local and remote NameServer instances. Clients must direct all connection requests to a NameServer on the machine where it runs, that is, to a NameServer where it is defined as a local instance.
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