Abacn opened a new issue, #32047:
URL: https://github.com/apache/beam/issues/32047
### What happened?
These error handler tests have long been flaky. For example, in the last 2
weeks, PostCommit Java Dataflow V2 failed 10 times, 6 due to one test failed in
these five:
testE2EBigtableWriteWithInvalidColumnFamilyFailures
testE2EBigtableWriteWithEmptyMutationFailures
testE2EBigtableWriteWithEmptyRowFailures
testE2EBigtableWriteWithInvalidTimestampFailures
testE2EBigtableWriteWithOversizedQualifierFailures
Example error:
```
java.lang.RuntimeException: org.apache.beam.sdk.util.UserCodeException:
java.lang.AssertionError: Write to error Sink/Combine/Flatten.PCollections.out:
Expected: <2L>
but: was <1L>
at
org.apache.beam.sdk.util.UserCodeException.wrap(UserCodeException.java:39)
at
org.apache.beam.sdk.testing.PAssert$DefaultConcludeFn$DoFnInvoker.invokeProcessElement(Unknown
Source)
...
Caused by: java.lang.AssertionError: Write to error
Sink/Combine/Flatten.PCollections.out:
Expected: <2L>
but: was <1L>
at
org.apache.beam.sdk.testing.PAssert$PAssertionSite.capture(PAssert.java:176)
at org.apache.beam.sdk.testing.PAssert.thatSingleton(PAssert.java:499)
at org.apache.beam.sdk.testing.PAssert.thatSingleton(PAssert.java:491)
at
org.apache.beam.sdk.io.gcp.bigtable.BigtableWriteIT.failureTest(BigtableWriteIT.java:341)
at
org.apache.beam.sdk.io.gcp.bigtable.BigtableWriteIT.testE2EBigtableWriteWithInvalidColumnFamilyFailures(BigtableWriteIT.java:164)
```
it appears to be related to how elements are bundled, as Dataflow v1 / v2 /
direct runner has different flaky rate (Dataflow v2 test fails most frequently)
### 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
- [X] Component: IO connector
- [ ] Component: Beam YAML
- [ ] Component: Beam examples
- [ ] Component: Beam playground
- [ ] Component: Beam katas
- [ ] Component: Website
- [ ] Component: Infrastructure
- [ ] 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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