zhengruifeng commented on code in PR #52689:
URL: https://github.com/apache/spark/pull/52689#discussion_r2450191055
##########
python/pyspark/sql/tests/test_udf.py:
##########
@@ -1551,6 +1554,98 @@ def check_struct_binary_type(s):
expected =
self.spark.createDataFrame([Row(type_name=expected_type)])
assertDataFrameEqual(result, expected)
+ @unittest.skipIf(is_remote_only(), "Requires JVM access")
+ def test_udf_with_logging(self):
+ @udf
+ def my_udf():
+ logger = logging.getLogger("test")
+ print("print to stdout ❤", file=sys.stdout)
+ print("print to stderr 😀", file=sys.stderr)
+ try:
+ 1 / 0
+ except Exception:
+ logger.exception("exception")
+ return "x"
+
+ # Logging is disabled by default
+ assertDataFrameEqual(
+ self.spark.range(1).select(my_udf().alias("result")),
[Row(result="x")]
+ )
+
self.assertEqual(self.spark.table("system.session.python_worker_logs").count(),
0)
+
+ with self.sql_conf({"spark.sql.pyspark.worker.logging.enabled":
"true"}):
+ assertDataFrameEqual(
+ self.spark.range(1).select(my_udf().alias("result")),
[Row(result="x")]
+ )
+
+ logs = self.spark.table("system.session.python_worker_logs")
+
+ assertDataFrameEqual(
+ logs.select("level", "msg", "context", "logger"),
+ [
+ Row(
+ level="INFO",
+ msg="print to stdout ❤",
+ context={"func_name": my_udf.__name__},
+ logger="stdout",
+ ),
+ Row(
+ level="ERROR",
+ msg="print to stderr 😀",
+ context={"func_name": my_udf.__name__},
+ logger="stderr",
+ ),
+ Row(
+ level="ERROR",
+ msg="exception",
+ context={"func_name": my_udf.__name__},
+ logger="test",
+ ),
+ ],
+ )
+
+ self.assertEqual(logs.where("exception is not
null").select("exception").count(), 1)
+
+ @unittest.skipIf(is_remote_only(), "Requires JVM access")
Review Comment:
> Requires JVM access
which line in the udf requires JVM access?
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