[SPARK-54745][PYTHON] Fix PySpark import error caused by missing UnixStreamServer on Windows #53546
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Kontinuation
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import pyspark error caused by socketserver.UnixStreamServer not supported on Windows
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…er not present on Windows
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HyukjinKwon
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Dec 21, 2025
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I think the change is pretty straightforward. Please let me know when it's tested. I can merge |
Kontinuation
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I have tested this on Windows 11 and it worked well. I think it is good to merge. |
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Merged to master and branch-4.1. |
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…StreamServer on Windows
### What changes were proposed in this pull request?
This PR fixes an error caused by `socketserver.UnixStreamServer` not being available on Windows. We define a fallback `AccumulatorUnixServer` to raise an exception on construction and inform the user to disable `spark.python.unix.domain.socket.enabled`.
### Why are the changes needed?
`import pyspark` fails with the following message on Windows since PySpark 4.1.0:
```
sedona\spark\__init__.py:19: in <module>
import pyspark
.venv\Lib\site-packages\pyspark\__init__.py:71: in <module>
from pyspark.accumulators import Accumulator, AccumulatorParam
.venv\Lib\site-packages\pyspark\accumulators.py:324: in <module>
class AccumulatorUnixServer(socketserver.UnixStreamServer):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
E AttributeError: module 'socketserver' has no attribute 'UnixStreamServer'
```
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Manually test this on Windows 11
### Was this patch authored or co-authored using generative AI tooling?
No.
Closes #53546 from Kontinuation/fix-uds-windows-compat.
Authored-by: Kristin Cowalcijk <[email protected]>
Signed-off-by: Hyukjin Kwon <[email protected]>
(cherry picked from commit a8f817d)
Signed-off-by: Hyukjin Kwon <[email protected]>
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Thanks @Kontinuation !! |
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What changes were proposed in this pull request?
This PR fixes an error caused by
socketserver.UnixStreamServernot being available on Windows. We define a fallbackAccumulatorUnixServerto raise an exception on construction and inform the user to disablespark.python.unix.domain.socket.enabled.Why are the changes needed?
import pysparkfails with the following message on Windows since PySpark 4.1.0:Does this PR introduce any user-facing change?
No.
How was this patch tested?
Manually test this on Windows 11
Was this patch authored or co-authored using generative AI tooling?
No.