我正在Google Cloud Platform上使用python运行数据流作业（Apache Beam 2.12.0）。管道没有终止，并且继续运行。
问题与 https://issues.apache.org/jira/browse/BEAM-7266 它没有解决，并说“再次见面时打开”。它还表示文件编写器没有关闭。
只有一个错误日志：
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/batchworker.py", line 649, in do_work
work_executor.execute()
File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/executor.py", line 178, in execute
op.finish()
File "dataflow_worker/native_operations.py", line 93, in dataflow_worker.native_operations.NativeWriteOperation.finish
def finish(self):
File "dataflow_worker/native_operations.py", line 94, in dataflow_worker.native_operations.NativeWriteOperation.finish
with self.scoped_finish_state:
File "dataflow_worker/native_operations.py", line 95, in dataflow_worker.native_operations.NativeWriteOperation.finish
self.writer.__exit__(None, None, None)
File "/usr/local/lib/python2.7/dist-packages/dataflow_worker/nativefileio.py", line 465, in __exit__
self.file.close()
File "/usr/local/lib/python2.7/dist-packages/apache_beam/io/filesystemio.py", line 202, in close
self._uploader.finish()
File "/usr/local/lib/python2.7/dist-packages/apache_beam/io/gcp/gcsio.py", line 606, in finish
raise self._upload_thread.last_error # pylint: disable=raising-bad-type
NotImplementedError: offset: 0, whence: 0, position: 51518, last: 0