[SPARK-50909][PYTHON][4.0] Setup faulthandler in PythonPlannerRunners #49635
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### What changes were proposed in this pull request? Setups `faulthandler` in `PythonPlannerRunner`s. It can be enabled by the same config as UDFs. - SQL conf: `spark.sql.execution.pyspark.udf.faulthandler.enabled` - It fallback to Spark conf: `spark.python.worker.faulthandler.enabled` - `False` by default ### Why are the changes needed? The `faulthandler` is not set up in `PythonPlannerRunner`s. ### Does this PR introduce _any_ user-facing change? When enabled, if Python worker crashes, it may generate thread-dump in the error message on the best-effort basis of Python process. ### How was this patch tested? Added the related tests. ### Was this patch authored or co-authored using generative AI tooling? No. Closes apache#49592 from ueshin/issues/SPARK-50909/faulthandler. Authored-by: Takuya Ueshin <[email protected]> Signed-off-by: Takuya Ueshin <[email protected]>
HyukjinKwon
approved these changes
Jan 24, 2025
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Since one of the failures is Python part, could you re-trigger once more, @ueshin ?
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What changes were proposed in this pull request?
This is a backport of #49592.
Setups
faulthandlerinPythonPlannerRunners.It can be enabled by the same config as UDFs.
spark.sql.execution.pyspark.udf.faulthandler.enabledspark.python.worker.faulthandler.enabledFalseby defaultWhy are the changes needed?
The
faulthandleris not set up inPythonPlannerRunners.Does this PR introduce any user-facing change?
When enabled, if Python worker crashes, it may generate thread-dump in the error message on the best-effort basis of Python process.
How was this patch tested?
Added the related tests.
Was this patch authored or co-authored using generative AI tooling?
No.