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opHA 5 Release notes

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Introduction

opHA introduces the concept of a Primary & multiple Poller servers:

  • The Primary is the server that keeps the information of all the pollers and it is where we can read all the information from.

  • The Pollers, collect their own data, and send that information to the Primary when it is requested.

Installation instruction:

opHA 5 Installation

Releases

opHA Message Bus 5.0.0

RELEASED 8 November 2024

New release, installation guide to setup/license FirstWave opHA 5.0.0 (opHA Message Bus).

The new opHA 5.0.0 features includes

  • Installer and the installation guide to setup opHAMB in non replicated mode. In a non replicated mode is when the setup has a single Main Primary. A single instance of NATS service and a single instance of Mongodb is run on the Main Primary.

  • Installer and the installation guide to setup opHAMB in a replicated mode. In a replicated mode both Mongodb on Primary and Nats needs to be replicated. To this end the installer sets up have a Main Primary and atleast one Secondary Primary.
    There instances of NATS is needed to be run to tolerate a one node failure. Main Primary and Secondary Primary runs on instance of NATS each. A Poller can be used to run the third instance.
    Like wise Mongodb is run as a primary mongodb instance on Main Primary. Secondary Primary runs a replica as a secondary mongodb instance. The third instance of mongodb is run as an arbiter and can be run on one of the Poller where NATS is run.

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