Create new session if client reused on different event loop #351
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When debugging some CI hands in
dask-kubernetes
I found that #189 is the point where hangs first start happening.In that project we use the async client, and I wonder if it gets shared across event loops in some way I'm not understanding. Possibly even just in a CI environment where the controller and client code are being run in the same process.
This PR reverts that change just so I can test it out, but longer term a different fix would be needed. Probably where we enforce clients can't be reused somehow.