VM Scale Booster Prerequisites

To install Accops VM Scale Booster setup on a Windows desktop system, the following prerequisites must be fulfilled:

• Hardware Requirements

• Where to install

• Supporting Operating Systems

• Dependency RabbitMQ Installation and Configuration

Hardware Requirements

Accops VM Scale Booster can be installed on Windows machines (physical or virtual) with the following minimum configuration:

Minimum Server Configurations:

• Minimum 4 GB RAM

• 2 vCPUs

• 10 GB of free space on the installation disk for installation, dependencies, and post-installation, management files.

Note

Actual server sizing must be derived as per the expected user load and user profiles (type of applications, browser instances etc.).

Where to install VM Scale Booster

VM Scale Booster is typically deployed to reduce the overhead of communication with agents on desktop VMs; therefore, placing it on the same server as the Controller defeats its purpose and is recommended to be installed in a separate Windows server than HyWorks Controller.

However, as per deployment needs, VM Scale Booster can still be deployed on HyWorks Controllers. While configuring VM Scale Booster settings, load balancer has to be put in front of message queues and the load balancer address has to be configured on the HyWorks Controller.

Supported Operating Systems

Accops VM Scale Booster works fine on all Windows servers which are also supported by HyWorks Controller.

Important Software Requirements (RabbitMQ)

Accops VM Scale Booster depends on RabbitMQ for its features like desktop agents pushing updates to the queues and then pushing to the HyWorks Controller database directly. This section will provide details information on the installation and configuration of RabbitMQ and its dependencies.

Erlang OTP Installation

Official Download Link for Erlang OTP:

• Download Erlang OTP 26.2.x from here

Erlang OTP Installation Steps:

1. Copy the setup file of the downloaded Erlang (OTP) v26.2.X.

2. Log in to the server using user credentials that have local administrator privileges.

3. Double-click the otp_win64_26.2.X.exe, and install with the default selections.

   

4. Select the install location for the ErlangOTP and click Next.

   

5. Click Install to start the installation.

   

6. Once the installation is complete, click Finish to close the installation wizard of Erlang.

7. Reboot the system if required to complete the Erlang installation process.

Note

The exact version of Erlang (OTP) is required for the installation.

RabbitMQ Installation

RabbitMQ is used in HyWorks by several modules to send, receive, and manage messages to support multiple features, enabling various features, some of which are outlined below:

• DVM Push: Desktop agents will push session events and heartbeats while the VM Scale Booster (Consumer service) updates the database, thereby reducing overhead on the HyWorks Controller.

• HA Notify: The HyWorks Controller sends updates regarding the current high availability status, including the active primary server, enabling modules to connect to the appropriate primary server.

• Scheduler Action and Notification: Scheduler and Action Processor components use message queues to perform scheduled actions and then send notifications to the agents in the sessions.

Note

The exact version of RabbitMQ is required for the installation.

Download Location of RabbitMQ:

• Download RabbitMQ from here

RabbitMQ Installation Steps:

1. Copy the setup file of the downloaded RabbitMQ server module v3.13.X.

2. Log in to the server using user credentials that have local administrator privileges.

3. Double-click the rabbitmq-server-3.13.X.exe and proceed with the installation.

   

4. Select the install location folder and click Next.

   

5. Once the installation is complete, confirm that the RabbitMQ service is installed properly and running.

6. At this point, RabbitMQ, with its prerequisite Erlang OTP, will be ready.

7. The next step is to configure the RabbitMQ service to enable it for other Accops modules such as VM Scale Booster, Scheduler, or Action Processor.

   1. Basic Configuration: To configure the basic RabbitMQ server, follow the RabbitMQ Server Configuration steps.

   2. Advanced Configuration: To perform the advanced configurations like enabling SSL, changing the default port, upgrading, and high-availability, refer to the RabbitMQ Advanced Configurations section.

RabbitMQ Configurations

RabbitMQ is used in HyWorks by multiple modules to send, receive, and manage messages to support multiple features, some of which are mentioned below:

• DVM Push: Desktop agents will push the session events and heartbeat and VM Scale Booster (Consumer service) pushes the updates to the database and thus reducing overhead on the HyWorks Controller.

• HA Notify: HyWorks Controllers push the updates about current HA status e.g., current primary server and thus modules reading this can connect to correct primary server.

• Schedule Action and Notification: Scheduler, Action Processor components use message queues for performing scheduled actions and then send notifications to agents in the sessions.

Understanding the importance of RabbitMQ in HyWorks deployments, this section will provide detailed information on RabbitMQ configurations(assuming installation is already completed):

• Post-Install RabbitMQ Configurations.

RabbitMQ Server Configuration

RabbitMQ settings require modification after installation. A configuration script is provided and needed to execute the following necessary tasks:

• Create a user in RabbitMQ: This user account will be configured in RabbitMQ to communicate with RabbitMQ from external hosts. A default user will not be allowed to connect other than localhost.

• Set the Erlang cookie so that the RabbitMQ command works correctly.

• Configuring some plugins and timestamp settings.

Steps to run RabbitMQ Configuration Script:

Follow the steps below to configure the RabbitMQ server for use with HyWorks components:

1. Log in to the server using user credentials that have administrator privileges.

2. Make sure the exact versions of Erlang OTP (Prerequisite for RabbitMQ) and RabbitMQ are already installed on the server.

3. Make sure that the RabbitMQ service is running after the installation is complete.

4. Run the ConfigureRabbitMQ.bat with admin privileges. Refer to this download link of the Configuration Script for RabbitMQ v3.13.

   1. It will ask you to enter the username and password to configure RabbitMQ.

   2. Enter the username and password, and remember these details. This information needs to be configured in the HyWorks components that use RabbitMQ.

5. RabbitMQ is ready to be configured into the Accops HyWorks Controller and other components.

   1. This is a non-SSL configuration on port 5672.

   2. Refer to the RabbitMQ Advance Configurations section to configure RabbitMQ for SSL communication.

Till this point, server is ready with prerequisites to install VM Scale Booster.