I can think of following reasons why we may not receive elements: * The trigger strategy, as you noted * The stream that feeds the side input does not produce any data, such as when you have an "optional" path in the job graph.
When I run wordcount with this patch, I see the expected output. Any pointer as to which side input may be missing? [ Full content available at: https://github.com/apache/beam/pull/6325 ] This message was relayed via gitbox.apache.org for [email protected]
