[jira] [Created] (BEAM-8267) Python loopback throws spurious errors on shutdown

["Kyle Weaver (Jira)" <ji...@apache.org>]

Kyle Weaver created BEAM-8267:
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             Summary: Python loopback throws spurious errors on shutdown
                 Key: BEAM-8267
                 URL: https://issues.apache.org/jira/browse/BEAM-8267
             Project: Beam
          Issue Type: Bug
          Components: sdk-py-harness
            Reporter: Kyle Weaver
            Assignee: Kyle Weaver


These errors don't appear to actually cause any problems, but they are misleading. Looks like we're trying to stop subprocesses even when there _are_ no subprocesses.
 
ERROR:grpc._server:Exception calling application: u'1-1'
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/grpc/_server.py", line 434, in _call_behavior
    response_or_iterator = behavior(argument, context)
  File "/usr/local/lib/python2.7/dist-packages/apache_beam-2.17.0.dev0-py2.7.egg/apache_beam/runners/worker/worker_pool_main.py", line 126, in StopWorker
    worker_process = self._worker_processes.pop(stop_worker_request.worker_id)
KeyError: u'1-1'



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