Upgrading Major Versions in Zero Downtime
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 instance of
API Gateway is running.
Create a quiesce port in old instance of
API Gateway. If you are using a cluster setup, you must create a quiesce port for each instance of
API Gateway in the old instance. To learn more about quiesce port, see
API Gateway
Quiesce Mode.
Important:
If your API Gateway version is older than 10.7, fix 4, when you migrate from 10.5 to 10.7 version, the fields such as gatewayEndpoints and provider are not migrated to 10.7 from 10.5. Before performing the migration, add these two fields in the location Installation_Location\IntegrationServer\instances\default\packages\WmAPIGateway\bin\migrate\MigrationESHandler.xml, under the property name typesFields and entry key apis.
The following image represents the steps to be performed for a major upgrade.
Each of the above step is explained in the following sections:
