Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/2351#issuecomment-56863846
I noticed that we don't have any automated tests for `show_profiles()`, so
I tested it manually and found a problem when running this file through
`spark-submit`:
```python
from pyspark import SparkContext, SparkConf
conf = SparkConf()
conf.set("spark.python.profile", "true")
sc = SparkContext(appName="test", conf=conf)
count = sc.parallelize(range(10000)).count()
sc.show_profiles()
```
This results in:
```
Traceback (most recent call last):
File "/Users/joshrosen/Documents/spark/test.py", line 6, in <module>
sc.show_profiles()
File "/Users/joshrosen/Documents/Spark/python/pyspark/context.py", line
811, in show_profiles
for i, (id, acc, showed) in self._profile_stats:
ValueError: too many values to unpack
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
File "/Users/joshrosen/anaconda/lib/python2.7/atexit.py", line 24, in
_run_exitfuncs
func(*targs, **kargs)
File "/Users/joshrosen/Documents/Spark/python/pyspark/context.py", line
811, in show_profiles
for i, (id, acc, showed) in self._profile_stats:
ValueError: too many values to unpack
Error in sys.exitfunc:
Traceback (most recent call last):
File "/Users/joshrosen/anaconda/lib/python2.7/atexit.py", line 24, in
_run_exitfuncs
func(*targs, **kargs)
File "/Users/joshrosen/Documents/Spark/python/pyspark/context.py", line
811, in show_profiles
for i, (id, acc, showed) in self._profile_stats:
ValueError: too many values to unpack
```
Can we add a test for this, too?
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