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https://issues.apache.org/jira/browse/FLINK-4805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Chesnay Schepler reassigned FLINK-4805:
---------------------------------------
Assignee: Chesnay Schepler
> Stringify() crashes with Python3 (run with pyflink3)
> ----------------------------------------------------
>
> Key: FLINK-4805
> URL: https://issues.apache.org/jira/browse/FLINK-4805
> Project: Flink
> Issue Type: Bug
> Components: Python API
> Reporter: Yakov Goldberg
> Assignee: Chesnay Schepler
>
> {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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