issue_comments: 371334589

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https://github.com/pydata/xarray/issues/1971#issuecomment-371334589 https://api.github.com/repos/pydata/xarray/issues/1971 371334589 MDEyOklzc3VlQ29tbWVudDM3MTMzNDU4OQ== 2443309 2018-03-08T00:27:52Z 2018-03-08T00:27:52Z MEMBER

I managed to dig up some more information here. I was having a test failure in test_serializable_locks resulting in a traceback that looks like. ``` ... timeout_handle = self.add_timeout(self.time() + timeout, self.stop) self.start() if timeout is not None: self.remove_timeout(timeout_handle) if not future_cell[0].done():

      raise TimeoutError('Operation timed out after %s seconds' % timeout)

E tornado.ioloop.TimeoutError: Operation timed out after 10 seconds

../../../anaconda/envs/xarray36/lib/python3.6/site-packages/tornado/ioloop.py:457: TimeoutError ```

From then on we were using the distributed scheduler and any tests that used dask resulted in a additional timeout (or similar error).

Unfortunately, my attempts to provide a mcve have come up short. If I can come up with one, I'll report upstream but as it is, I can't really transfer this behavior outside of my example.

cc @mrocklin 

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