Abacn opened a new issue, #25110:
URL: https://github.com/apache/beam/issues/25110
### What happened?
Test has always been very flaky due to
```
java.lang.RuntimeException: java.util.concurrent.TimeoutException: Timeout
waiting for Python service startup after 16602 milliseconds.
at
org.apache.beam.sdk.extensions.python.PythonExternalTransform.expand(PythonExternalTransform.java:476)
```
This is because each call of `PythonExternalTransform.from()` will try to
setup a transient expansion service. When lots of test running concurrently,
timeout in one test is observed.
We may want to setup a service owned by the test class to decrease the load.
### Issue Failure
Failure: Test is flaky
### Issue Priority
Priority: 2 (backlog / disabled test but we think the product is healthy)
### Issue Components
- [ ] Component: Python SDK
- [X] Component: Java SDK
- [ ] Component: Go SDK
- [ ] Component: Typescript SDK
- [ ] Component: IO connector
- [ ] 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
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