Improve error message when adding a PTransform with a name that already exists in the pipeline
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- Java
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Description
Currently, when trying to apply a PTransform with a name that already exists in the pipeline, it returns a confusing error:
Transform "XXX" does not have a stable unique label. This will prevent updating of pipelines. To apply a transform with a specified label write pvalue | "label" \>\> transform
We'd like to improve this error message.
Imported from Jira [BEAM-8415](https://issues.apache.org/jira/browse/BEAM-8415). Original Jira may contain additional context.
Reported by: davidyan.
Contributor guide
Research direction
No source file or test is named in the issue. Start by locating the code that emits the quoted “stable unique label” message, then read the original BEAM-8415 context and reproduce the duplicate-name case; done means the error clearly explains the naming conflict.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- data-engineering
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100