Ning Kang created BEAM-10637:
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Summary: Fix start/stop hanging issue on test stream service
controller
Key: BEAM-10637
URL: https://issues.apache.org/jira/browse/BEAM-10637
Project: Beam
Issue Type: Improvement
Components: runner-py-interactive
Reporter: Ning Kang
Assignee: Ning Kang
The test stream controller sometimes hangs forever when the underlying grpc
server start or stop in the wrong timing:
E.g., try to stop a server never started, stop a server already stopped, start
a server already started and etc.
The change is to add start/stop states to handle all 6 combinations:
# start server not started
# start server started
# start server stopped
# stop server not started
# stop server started
# stop server stopped
So that it never hangs.
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