[BUG] CUDA 12 latest-deps wheel tests fail: pylibcudf/libcudf nightly ABI skew (undefined symbol read_parquet_column_chunk_bounds)
维护者通常 1 天内回复
@Kh4ster 已经在做这个了。
开始于 2026年8月21日。
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描述
Describe the bug
CUDA 12 wheel test jobs fail at import time with an undefined symbol error from pylibcudf, before any cuOpt code runs:
ImportError: /pyenv/versions/3.11.16/lib/python3.11/site-packages/pylibcudf/io/parquet_metadata.abi3.so:
undefined symbol: _ZN4cudf2io32read_parquet_column_chunk_boundsESt4spanIKNS0_7parquet12FileMetaDataE...
demangled: cudf::io::read_parquet_column_chunk_bounds(...)
The import chain that triggers it is from pylibcudf.io.experimental.hybrid_scan import ....
Root cause
The installed libcudf and pylibcudf nightlies are skewed:
libcudf-cu12-26.10.0a291.post260821111824 <- built 11:18
pylibcudf-cu12-26.10.0a292.post260821162058 <- built 16:20, ~5h later
pylibcudf a292 was built against a libcudf that exports read_parquet_column_chunk_bounds; the resolver pinned libcudf a291, which does not. Both satisfy ==26.10.*, so pip is free to pick mismatched nightlies.
Observed in
Run 32495102132:
| job | result |
|---|---|
wheel-tests-cuopt / 12.2.2, 3.11, arm64, ubuntu22.04, a100, latest-deps |
fail |
wheel-tests-cuopt-server / 12.9.2, 3.14, amd64, ubuntu24.04, h100, latest-deps |
fail |
wheel-tests-cuopt / 12.9.2, 3.11, amd64, l4, oldest-deps |
pass |
wheel-tests-cuopt / 12.9.2, 3.14, amd64, h100, latest-deps |
pass |
Only latest-deps jobs are affected, which is consistent with nightly drift: oldest-deps resolves to an older, self-consistent pair.
Failure mode is a collection error, so it takes out the whole module -- one of the runs reported 0 passed, 1 failed, 20 errors.
Not cuOpt code
The failure happens while importing pylibcudf, before cuOpt is exercised. It is unrelated to whatever a given PR changes; it surfaced on an unrelated routing fix.
Suggested next steps
- Confirm whether this is transient nightly skew or needs a constraint pinning
libcudf/pylibcudfto the same nightly build - If the former, consider whether
latest-depsjobs should pin matched RAPIDS nightly builds rather than==26.10.*independently
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