akashorabek opened a new issue, #31108: URL: https://github.com/apache/beam/issues/31108
### What happened? It's a bug in the implemenation of SyntheticUnboundedSource class. By default, it splits the data to some number of bundles and lost records number in write streaming pipeline equals to that number of bundles. Various stress and load tests use this Source, for example, [KafkaIOLT](https://github.com/apache/beam/blob/master/it/kafka/src/test/java/org/apache/beam/it/kafka/KafkaIOLT.java#L174) and [PubSubIOLT](https://github.com/apache/beam/blob/master/it/google-cloud-platform/src/test/java/org/apache/beam/it/gcp/pubsub/PubsubIOLT.java). To reproduce the bug, you can run PubSubIOLT (for convenience, I recommend running it on DirectRunner) and check the value of numRecords. It is typically lower than what we initially set. ### Issue Priority Priority: 3 (minor) ### Issue Components - [ ] Component: Python SDK - [X] Component: Java SDK - [ ] Component: Go SDK - [ ] Component: Typescript SDK - [ ] Component: IO connector - [ ] Component: Beam YAML - [ ] Component: Beam examples - [ ] Component: Beam playground - [ ] Component: Beam katas - [ ] Component: Website - [ ] Component: Spark Runner - [ ] Component: Flink Runner - [ ] Component: Samza Runner - [ ] Component: Twister2 Runner - [ ] Component: Hazelcast Jet Runner - [ ] Component: Google Cloud Dataflow Runner -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
