HyukjinKwon commented on a change in pull request #30985:
URL: https://github.com/apache/spark/pull/30985#discussion_r559176198
##########
File path: python/pyspark/worker.py
##########
@@ -500,7 +501,12 @@ def main(infile, outfile):
except (resource.error, OSError, ValueError) as e:
# not all systems support resource limits, so warn instead of
failing
- print("WARN: Failed to set memory limit: {0}\n".format(e),
file=sys.stderr)
+ print(warnings.formatwarning(
+ "Failed to set memory limit: {0}\n".format(e),
+ ResourceWarning,
+ __file__,
+ getframeinfo(currentframe()).lineno
Review comment:
Ah, gotya. To be extremely conservative for the Python implementation
concern, we could do something like:
```python
cur = currentframe()
getframeinfo(cur).lineno if cur is not None else -1 # or 0 ..?
```
looks like it's implemented in Python as:
```python
def currentframe():
"""Return the frame of the caller or None if this is not possible."""
return sys._getframe(1) if hasattr(sys, "_getframe") else None
```
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