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The port offset specified earlier in carbon.xml does not affect the ports of the Thrift client and server because Thrift is run as a separate server within the Carbon server. Therefore, you must change the Thrift ports separately using <ThfirtClientPort> <ThriftClientPort> and <ThriftServerPort> elements in the <APIM_HOME>/repository/conf/api-manager.xml file. For example, the following configuration sets an offset of 2 to the default Thrift port, which is 10397:
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When you run multiple instances of the API Manager in distributed mode, the Gateway and Key Manager (used for validation and authentication) can run on two different JVMs. When the API Gateway receives API invocation calls, it contacts the API Key Manager service for verification (given that caching is not enabled at the Gateway level). Communication between API Gateway and Key Manager happens in either of the following ways:
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The API Manager has a Service which listens for workflow callbacks. This service configuration can be found at <AM_HOME>/repository/deployment/server/synapse-configs/default/proxy-services/WorkflowCallbackService.xml. Open this file and change the port value of the <address uri uri> accordingly.
Ex: <address uri="https://localhost:9445/store/site/blocks/workflow/workflow-listener/ajax/workflow-listener.jag" format="rest"/>
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