Software AG Products 10.11 | Upgrade and Migration in API Gateway | Upgrading API Gateway in Zero Downtime | Upgrading Major Versions in Zero Downtime
 
Upgrading Major Versions in Zero Downtime
 
Start the new API Gateway instance
Clean the data in the new API Data Store
Put the old API Gateway instances in quiesce mode for design time
Migrate the design time data
Transform the design time data
Restart new API Gateway instances
Add traffic to the new API Gateway instance
Put the old API Gateway instances into quiesce mode for all
Migrate the analytics data
Shutdown the old API Gateway instance
This section explains the steps to upgrade API Gateway in zero downtime for major versions like 10.5 to 10.7, 10.7 to 10.11, and so on.
Prerequisites
*Ensure that the old API Gateway instance is running.
*Create a quiesce port in old API Gateway instance. If you are using a cluster setup, you must create a quiesce port for each API Gateway instance in the old instance. To learn more about quiesce port, see API Gateway Quiesce Mode.
The following image represents the steps to perform a major upgrade:
Each of the above step is explained in the following sections: