Github user rilut commented on the pull request:
https://github.com/apache/spark/pull/5173#issuecomment-113410652
I'm on Python 3.4.3 (Anaconda 2.2.0 64-bit, Windows 10 x64) and
experiencing a problem.
>>> sc.parallelize([1, 2]).count()
....
File "C:\Anaconda3\lib\socket.py", line 205, in makefile
raise ValueError("invalid mode %r (only r, w, b allowed)" % (mode,))
ValueError: invalid mode 'a+' (only r, w, b allowed)
15/06/19 14:10:54 WARN PythonRDD: Incomplete task interrupted:
Attempting to kill Python Worker
....
I think it's because of
https://github.com/apache/spark/blob/master/python/pyspark/worker.py#L149 .
I'm not sure if `a+` mode exists in Python 3.
>>> import socket
>>> sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>>> sock.connect(("127.0.0.1", 4040))
>>> sock_file = sock.makefile("a+", 65536) ## failed
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Anaconda3\lib\socket.py", line 205, in makefile
raise ValueError("invalid mode %r (only r, w, b allowed)" % (mode,))
ValueError: invalid mode 'a+' (only r, w, b allowed)
>>> sock_file = sock.makefile("r", 65536) ## r is okay
>>> sock_file = sock.makefile("x", 65536) ## x is obviously doesn't
exists, I'm making this up.
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Anaconda3\lib\socket.py", line 205, in makefile
raise ValueError("invalid mode %r (only r, w, b allowed)" % (mode,))
ValueError: invalid mode 'x' (only r, w, b allowed)
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