[coverage] Conformance findings: CLOUDFETCH-017
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Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 62/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Quiet
- Tech stack
- typescript
- Domain
- backend
Research direction
Start with the CLOUDFETCH-017 expected-failure test in the linked coverage PR, then compare the behavior with the reference driver PR. Trace the Thrift CloudFetch chunk-download retry path for a persistent HTTP 500. Done means the caller's error preserves the download context and failed GET status instead of only reporting that the retry count was exceeded.
Written by the indexing model from the issue text.
Description
Surfaced by the multi-language coverage fan-out while conformance-testing these SPEC-IDs against databricks/databricks-sql-nodejs.
Each is committed as an expected-failure (xfail) test in the coverage PR — the test asserts the CORRECT behavior and stays red until this driver is fixed.
- CLOUDFETCH-017: Thrift CloudFetch download failure loses its cause: after the chunk-download retry budget is exhausted on a persistent HTTP 500, the caller receives a bare "Max retry count exceeded" that identifies neither the chunk/result download nor the failed GET's HTTP status (SEA/kernel correctly surfaces "HTTP 500: Internal Server Error")
Reference driver PR: https://github.com/databricks/databricks-sql-go/pull/417
Coverage PR (reproducing xfail tests): https://github.com/databricks/databricks-driver-test/pull/1014
- Dominant language
- TypeScript
- Stars
- 36
- Forks
- 50
- Avg merge
- 13h 46m
- Merged PRs (30d)
- 9
Contributor guide
First steps
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- Comment on the issue to say you are picking it up — it saves two people doing the same work.
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- Open a pull request that references the issue number.
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