gaborgsomogyi opened a new pull request, #21189:
URL: https://github.com/apache/flink/pull/21189
## What is the purpose of the change
Kafka tests are having intermittent issues and because of that retry
happens. The main issue is that when a test fails most of the time throws
exception and topic almost never deleted. Such case test is 100% in a dead-end
exception similar to this:
```
Oct 27 15:07:54 java.lang.AssertionError: Create test topic :
partition_failure_recovery_EventTime failed,
org.apache.kafka.common.errors.TopicExistsException: Topic
'partition_failure_recovery_EventTime' already exists.
```
In this PR I've added random to the Kafka topic names in the tests allowing
to avoid such exception in the next round.
## Brief change log
Added random to the Kafka topic names in the tests
## Verifying this change
Existing unit tests.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
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