Alexey Strokach created ARROW-3346:
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Summary: Segfault when reading parquet files if torch is imported
before pyarrow
Key: ARROW-3346
URL: https://issues.apache.org/jira/browse/ARROW-3346
Project: Apache Arrow
Issue Type: Bug
Components: Python
Affects Versions: 0.10.0
Reporter: Alexey Strokach
pyarrow (version 0.10.0) appears to crash sporadically with a segmentation
fault when reading parquet files if it is used in a program where torch is
imported first.
A self-contained example is available here:
[https://gitlab.com/ostrokach/pyarrow_pytorch_segfault].
Basically, running
{{python -X faulthandler -c "import torch; import pyarrow.parquet as pq; _ =
pq.ParquetFile('example.parquet').read_row_group(0)"}}
sooner or later results in a segfault:
{{Fatal Python error: Segmentation fault}}
Current thread 0x00007f52959bb740 (most recent call first):
{{ File
"/home/kimlab1/strokach/anaconda/lib/python3.6/site-packages/pyarrow/parquet.py",
line 125 in read_row_group}}
{{ File "<string>", line 1 in <module>}}
{{ ./test_fail.sh: line 5: 42612 Segmentation fault (core dumped) python -X
faulthandler -c "import torch; import pyarrow.parquet as pq; _ =
pq.ParquetFile('example.parquet').read_row_group(0)"}}
{{ The number of iterations before a segfault varies, but it usually happens
within the first several calls.}}
Running
{{python -X faulthandler -c "import pyarrow.parquet as pq; import torch; _ =
pq.ParquetFile('example.parquet').read_row_group(0)"}}
works without a problem.
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