David Roberts d611ab4855 Avoid race when shutting down controller processes (#24579) ...

This commit terminates any controller processes plugins might have after
the node has been closed.  This gives the plugins a chance to shut down their
controllers gracefully.

Previously there was a race condition where controller processes could be shut
down gracefully and terminated by two threads running in parallel, leading to
non-deterministic outcomes.

Additionally, controller processes that failed to shut down gracefully were
not forcibly terminated when running as a Windows service; there was a reliance
on the plugin to shut down its controller gracefully in this situation.
This commit also fixes this problem.

2017-05-10 14:59:14 +01:00

..

main

Avoid race when shutting down controller processes (#24579)

2017-05-10 14:59:14 +01:00

test

[Test] Fix wrong import

2017-05-10 12:31:28 +02:00