post analysis: time to first binding (cosmos-hmm)

[jc-brandeis]

"time to first binding" post analysis using cosmos-hmm model hangs and give the following errors in the Ubuntu window:

[Voila] AsyncIOLoopKernelRestarter: restarting kernel (1/5), keep random ports
[Voila] WARNING | kernel 35798a79-6ed1-4468-81c6-93426b5303cf restarted
Exception in callback <TaskWakeupMethWrapper object at 0x7f2424351940>(<Future finis...t=b'\x88\x80'>)
handle: <Handle <TaskWakeupMethWrapper object at 0x7f2424351940>(<Future finis...t=b'\x88\x80'>)>
Traceback (most recent call last):
  File "/home/jchung/anaconda3/envs/tapqir-env/lib/python3.8/asyncio/events.py", line 81, in _run
    self._context.run(self._callback, *self._args)
RuntimeError: Cannot enter into task <Task pending name='Task-75' coro=<RequestHandler._execute() running at /home/jchung/anaconda3/envs/tapqir-env/lib/python3.8/site-packages/tornado/web.py:1713> wait_for=<Future finished result=b'\x88\x80'> cb=[_HandlerDelegate.execute.<locals>.<lambda>() at /home/jchung/anaconda3/envs/tapqir-env/lib/python3.8/site-packages/tornado/web.py:2361]> while another task <Task pending name='Task-919' coro=<PeriodicCallback._run() running at /home/jchung/anaconda3/envs/tapqir-env/lib/python3.8/site-packages/tornado/ioloop.py:921> cb=[IOLoop.add_future.<locals>.<lambda>() at /home/jchung/anaconda3/envs/tapqir-env/lib/python3.8/site-packages/tornado/ioloop.py:694]> is being executed.
Task was destroyed but it is pending!
task: <Task pending name='Task-75' coro=<RequestHandler._execute() done, defined at /home/jchung/anaconda3/envs/tapqir-env/lib/python3.8/site-packages/tornado/web.py:1665> wait_for=<Future finished result=b'\x88\x80'> cb=[_HandlerDelegate.execute.<locals>.<lambda>() at /home/jchung/anaconda3/envs/tapqir-env/lib/python3.8/site-packages/tornado/web.py:2361]>
[Voila] WARNING | Replacing stale connection: 35798a79-6ed1-4468-81c6-93426b5303cf:943468bc-e6a1-4101-98ae-4e5c44aeeac1
[Voila] WARNING | zmq message arrived on closed channel