Contents
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Introduction
opHA-MB 5.0 introduces the concept of using a Message Bus to transfer data between opHA servers, as an alternative to the Web Service used to transfer data in earlier releases.
opHA-MB 5.0 uses one or more Primary & one or more Peer servers and a Message Bus:
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Term | Meaning |
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Message Bus | A message bus provides a messaging infrastructure for one or more applications to deliver messages to one or more other applications. |
ophad | ophad is the daemon for opHA Message Bus, which opHA uses to communicate with a Message Bus. |
Producer | an instance of the ophad process running in 'producer' mode (as per configuration). This will typically be running on the same server instances as the primary. |
Consumer | an instance of the ophad process running in 'consumer' mode (as per configuration). This will typically be running on the same server instance as the poller (or mirror) |
NATS | nats.io is an open-source product that is used as a Message Bus |
Installation Instructions
opHA with Message Bus opHA-MB 5.0 Installation (Non-Replication)
opHA with Message Bus with replication enabled opHA-MB 5.0 Installation (Replication)
Releases
opHA Message Bus 5.0.0
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