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From "Yakov Goldberg (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-4805) Stringify() crashes with Python3 (run with pyflink3)
Date Tue, 11 Oct 2016 23:07:20 GMT
Yakov Goldberg created FLINK-4805:
-------------------------------------

             Summary: Stringify() crashes with Python3 (run with pyflink3)
                 Key: FLINK-4805
                 URL: https://issues.apache.org/jira/browse/FLINK-4805
             Project: Flink
          Issue Type: Bug
            Reporter: Yakov Goldberg


{code}
Caused by: java.lang.RuntimeException: External process for task MapPartition (PythonMap)
terminated prematurely due to an error.
Traceback (most recent call last):
  File "/tmp/flink-dist-cache-299804c6-813a-44de-9f62-c5f4cf415990/1527bd1cc45d6f67695c180762c614ef/flink/plan.py",
line 548, in <module>
    env.execute(local=True)
  File "/tmp/flink-dist-cache-299804c6-813a-44de-9f62-c5f4cf415990/1527bd1cc45d6f67695c180762c614ef/flink/flink/plan/Environment.py",
line 181, in execute
    operator._go()
  File "/tmp/flink-dist-cache-299804c6-813a-44de-9f62-c5f4cf415990/1527bd1cc45d6f67695c180762c614ef/flink/flink/functions/Function.py",
line 64, in _go
    self._run()
  File "/tmp/flink-dist-cache-299804c6-813a-44de-9f62-c5f4cf415990/1527bd1cc45d6f67695c180762c614ef/flink/flink/functions/MapFunction.py",
line 29, in _run
    collector.collect(function(value))
  File "/tmp/flink-dist-cache-299804c6-813a-44de-9f62-c5f4cf415990/1527bd1cc45d6f67695c180762c614ef/flink/flink/plan/DataSet.py",
line 38, in map
    return "(" + b", ".join([self.map(x) for x in value]) + ")"
  File "/tmp/flink-dist-cache-299804c6-813a-44de-9f62-c5f4cf415990/1527bd1cc45d6f67695c180762c614ef/flink/flink/plan/DataSet.py",
line 38, in <listcomp>
    return "(" + b", ".join([self.map(x) for x in value]) + ")"
  File "/tmp/flink-dist-cache-299804c6-813a-44de-9f62-c5f4cf415990/1527bd1cc45d6f67695c180762c614ef/flink/flink/plan/DataSet.py",
line 38, in map
    return "(" + b", ".join([self.map(x) for x in value]) + ")"
TypeError: sequence item 0: expected bytes, bytearray, or an object with the buffer interface,
str found
	at org.apache.flink.python.api.streaming.data.PythonStreamer.streamBufferWithoutGroups(PythonStreamer.java:268)
	at org.apache.flink.python.api.functions.PythonMapPartition.mapPartition(PythonMapPartition.java:54)
	at org.apache.flink.runtime.operators.MapPartitionDriver.run(MapPartitionDriver.java:98)
	at org.apache.flink.runtime.operators.BatchTask.run(BatchTask.java:480)
	at org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:345)
	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:559)
	at java.lang.Thread.run(Thread.java:745)
{code}



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