High Availability

To ensure high availability for the "Link" app deployed on SAP Business Technology Platform (BTP), you must configure your application to run with multiple instances. Additionally, ensure that SAP Cloud Connector is set up for high availability to maintain uninterrupted connectivity.

Steps to Ensure High Availability

1. Increase the Number of Instances: To ensure high availability, you should scale the "Link" app to run with multiple instances. You can configure the number of instances either via the Application Overview in the SAP BTP cockpit or by modifying the manifest.yml file.

   • Via Application Overview:

     • Navigate to the application overview page.
     • Increase the number of instances to 2 or more.

   • Via manifest.yml File: If you prefer using the command line, update the manifest.yml file to set the instance count to a value greater than 1. Here's an example:

     processes:
     ...
     instances: 2
     ...

     After updating the manifest, use the cf push command to redeploy the app:

     cf push [app-name] -f manifest.yml

     Replace [app-name] with the name of your app.

2. Ensure SAP Cloud Connector is Configured for High Availability: To maximize the availability of your system, ensure that SAP Cloud Connector is properly configured for high availability. Follow the official SAP documentation to configure your Cloud Connector for high availability:

   • SAP Cloud Connector High Availability Setup
   • SAP Learning Course on High Availability

Additional Recommendations:

• Ensure that your application is distributed across multiple availability zones if applicable to further improve resilience.
• Regularly monitor the health of your instances to identify and address any potential issues proactively.