Github user viirya commented on the pull request:
https://github.com/apache/spark/pull/9283#issuecomment-151750455
When the exception is thrown from JVM, we see a simplified description:
>>> df.select(sha2(df.a, 1024)).collect()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/hduser/repos/spark/python/pyspark/sql/functions.py", line
943, in sha2
jc = sc._jvm.functions.sha2(_to_java_column(col), numBits)
File
"/home/hduser/repos/spark/python/lib/py4j-0.9-src.zip/py4j/java_gateway.py",
line 813, in __call__
File "/home/hduser/repos/spark/python/pyspark/sql/utils.py", line 52,
in deco
raise IllegalArgumentException(s.split(': ', 1)[1], stackTrace)
pyspark.sql.utils.IllegalArgumentException: u'requirement failed:
numBits 1024 is not in the permitted values (0, 224, 256, 384, 512)'
If we catch the exception, we can print its full stack trace:
>>> from pyspark.sql.utils import AnalysisException,
IllegalArgumentException
>>> try:
... df.select(sha2(df.a, 1024)).collect()
... except IllegalArgumentException as e:
... print e.stackTrace
...
scala.Predef$.require(Predef.scala:233)
org.apache.spark.sql.functions$.sha2(functions.scala:1596)
org.apache.spark.sql.functions.sha2(functions.scala)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:483)
py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:231)
py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:381)
py4j.Gateway.invoke(Gateway.java:259)
py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133)
py4j.commands.CallCommand.execute(CallCommand.java:79)
py4j.GatewayConnection.run(GatewayConnection.java:209)
java.lang.Thread.run(Thread.java:745)
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