Vanilletextdatei mit:Funken 2.1 PySpark Bug:. Sc.textFile ("test.txt") repartition (2) .collect()
echo "a\nb\nc\nd" >> test.txt
Mit Vanillefunken 2.1.0-bin -hadoop2.7.tgz schlägt das folgende fehl. Der gleiche Test funktioniert mit älteren Versionen von Funken fein:
$ bin/pyspark
Welcome to
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/__/.__/\_,_/_/ /_/\_\ version 2.1.0
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Using Python version 2.7.13 (default, Dec 18 2016 07:03:39)
SparkSession available as 'spark'.
>>> sc.textFile("test.txt").collect()
[u'a', u'b', u'c', u'd']
>>> sc.textFile("test.txt").repartition(2).collect()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/admin/opt/spark/spark-2.1.0-bin-hadoop2.7/python/pyspark/rdd.py", line 810, in collect
return list(_load_from_socket(port, self._jrdd_deserializer))
File "/Users/admin/opt/spark/spark-2.1.0-bin-hadoop2.7/python/pyspark/rdd.py", line 140, in _load_from_socket
for item in serializer.load_stream(rf):
File "/Users/admin/opt/spark/spark-2.1.0-bin-hadoop2.7/python/pyspark/serializers.py", line 529, in load_stream
yield self.loads(stream)
File "/Users/admin/opt/spark/spark-2.1.0-bin-hadoop2.7/python/pyspark/serializers.py", line 524, in loads
return s.decode("utf-8") if self.use_unicode else s
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/encodings/utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0x80 in position 0: invalid start byte
Verwenden der Vanille-Spark-2.1 lokale Installation, gleiche Textdatei, aber die Scala-basierte Funken Schale, die exakt die gleichen Befehle funktionieren:
$ bin/spark-shell
Spark session available as 'spark'.
Welcome to
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/__/__ ___ _____/ /__
_\ \/ _ \/ _ `/ __/ '_/
/___/ .__/\_,_/_/ /_/\_\ version 2.1.0
/_/
Using Scala version 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_112)
Type in expressions to have them evaluated.
Type :help for more information.
scala> sc.textFile("test.txt").collect()
res0: Array[String] = Array(a, b, c, d)
scala> sc.textFile("test.txt").repartition(2).collect()
res1: Array[String] = Array(a, c, d, b)
Hier ist der Fehler: https://issues.apache.org/jira/browse/SPARK-19872 – RobinL