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Appendix C: Clustered Deployment

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RMS Enterprise - Installation Guide

Network infrastructure requirements

In a clustered deployment, the nodes must find each other using multicast UDP communication and need to all

be on the same subnet.

By default, RMS uses the following multicast ports for a clustered deployment: 45564, 45588, and 46655

Communication between the nodes provides a variety of functions:

1. Configuration changes made via the Flex UI.

For example, when a configuration change within the Flex UI is made (e.g. SMTP Server), that change is

persisted to the database and propagated to the other servers.

2. Search index write operations: when locations are created and client gateways and their assets are

registered with the server, this information must be indexed on the shared file storage.

Only one server can write to the index at a time, so RMS employs a dynamic master-slave approach:

The first server to start in a cluster becomes the master, and subsequent servers become slaves.

The slaves send their index updates to the master who will perform the index writes for them.

If the master node goes down, the second server that was started becomes the new master and

performs the index writes.

3. Search index read operations (via SMB network file storage).

4. A distributed data grid (between the nodes) stores the last time each REST-based client gateway

communicated with the server. This allows RMS to determine when a client has gone off-line.

5. Licensing checks. Each server must communicate with the Sentinel license service approximately every

10 minutes.

If the Sentinel license service goes down, RMS will continue to operate for a 24 hour grace period.

Bandwidth costs

Many factors influence the bandwidth costs, including the number of servers in the cluster as well as the

number of locations, client gateways, and assets.

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AMX RMS CODECRAFTER Guia de Instalação Página 116