It seems the revision replayer is easily prone to faile with a timeout:
```
Jun 18 00:47:00 parasilo-25 swh[10598]: Traceback (most recent call last):
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/bin/swh", line 11, in <module>
Jun 18 00:47:00 parasilo-25 swh[10598]: load_entry_point('swh.core==0.14.3', 'console_scripts', 'swh')()
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/core/cli/__init__.py", line 185, in main
Jun 18 00:47:00 parasilo-25 swh[10598]: return swh(auto_envvar_prefix="SWH")
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/click/core.py", line 764, in __call__
Jun 18 00:47:00 parasilo-25 swh[10598]: return self.main(*args, **kwargs)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/click/core.py", line 717, in main
Jun 18 00:47:00 parasilo-25 swh[10598]: rv = self.invoke(ctx)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/click/core.py", line 1137, in invoke
Jun 18 00:47:00 parasilo-25 swh[10598]: return _process_result(sub_ctx.command.invoke(sub_ctx))
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/click/core.py", line 1137, in invoke
Jun 18 00:47:00 parasilo-25 swh[10598]: return _process_result(sub_ctx.command.invoke(sub_ctx))
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/click/core.py", line 956, in invoke
Jun 18 00:47:00 parasilo-25 swh[10598]: return ctx.invoke(self.callback, **ctx.params)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/click/core.py", line 555, in invoke
Jun 18 00:47:00 parasilo-25 swh[10598]: return callback(*args, **kwargs)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/click/decorators.py", line 17, in new_func
Jun 18 00:47:00 parasilo-25 swh[10598]: return f(get_current_context(), *args, **kwargs)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/storage/cli.py", line 194, in replay
Jun 18 00:47:00 parasilo-25 swh[10598]: client.process(worker_fn)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/journal/client.py", line 265, in process
Jun 18 00:47:00 parasilo-25 swh[10598]: batch_processed, at_eof = self.handle_messages(messages, worker_fn)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/journal/client.py", line 292, in handle_messages
Jun 18 00:47:00 parasilo-25 swh[10598]: worker_fn(dict(objects))
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/storage/replay.py", line 62, in process_replay_objects
Jun 18 00:47:00 parasilo-25 swh[10598]: _insert_objects(object_type, objects, storage)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/storage/replay.py", line 163, in _insert_objects
Jun 18 00:47:00 parasilo-25 swh[10598]: for o in objects
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/storage/cassandra/storage.py", line 563, in revision_add
Jun 18 00:47:00 parasilo-25 swh[10598]: missing = self.revision_missing([rev.id for rev in to_add])
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/storage/cassandra/storage.py", line 587, in revision_missing
Jun 18 00:47:00 parasilo-25 swh[10598]: return self._cql_runner.revision_missing(revisions)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/storage/cassandra/cql.py", line 133, in newf
Jun 18 00:47:00 parasilo-25 swh[10598]: self, *args, **kwargs, statement=self._prepared_statements[f.__name__]
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/storage/cassandra/cql.py", line 526, in revision_missing
Jun 18 00:47:00 parasilo-25 swh[10598]: return self._missing(statement, ids)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/storage/cassandra/cql.py", line 289, in _missing
Jun 18 00:47:00 parasilo-25 swh[10598]: rows = self._execute_with_retries(statement, [ids])
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/tenacity/__init__.py", line 329, in wrapped_f
Jun 18 00:47:00 parasilo-25 swh[10598]: return self.call(f, *args, **kw)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/tenacity/__init__.py", line 409, in call
Jun 18 00:47:00 parasilo-25 swh[10598]: do = self.iter(retry_state=retry_state)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/tenacity/__init__.py", line 356, in iter
Jun 18 00:47:00 parasilo-25 swh[10598]: return fut.result()
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3.7/concurrent/futures/_base.py", line 425, in result
Jun 18 00:47:00 parasilo-25 swh[10598]: return self.__get_result()
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3.7/concurrent/futures/_base.py", line 384, in __get_result
Jun 18 00:47:00 parasilo-25 swh[10598]: raise self._exception
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/tenacity/__init__.py", line 412, in call
Jun 18 00:47:00 parasilo-25 swh[10598]: result = fn(*args, **kwargs)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "/usr/lib/python3/dist-packages/swh/storage/cassandra/cql.py", line 256, in _execute_with_retries
Jun 18 00:47:00 parasilo-25 swh[10598]: return self._session.execute(statement, args, timeout=1000.0)
Jun 18 00:47:00 parasilo-25 swh[10598]: File "cassandra/cluster.py", line 2345, in cassandra.cluster.Session.execute
Jun 18 00:47:00 parasilo-25 swh[10598]: File "cassandra/cluster.py", line 4304, in cassandra.cluster.ResponseFuture.result
Jun 18 00:47:00 parasilo-25 swh[10598]: cassandra.ReadTimeout: Error from server: code=1200 [Coordinator node timed out waiting for replica nodes' responses] message="Operation timed out - received only 0 responses." info={'consistency': 'LOCAL_ONE', 'required_responses': 1, 'received_responses': 0}
```