Method shutdown

cassandra/cluster.py:1752–1778

Closes all sessions and connection associated with this Cluster. To ensure all connections are properly closed, **you should always call shutdown() on a Cluster instance when you are done with it**. Once shutdown, a Cluster should not be used for any purpose.

(self)

        return holders

    def shutdown(self):
        """
        Closes all sessions and connection associated with this Cluster.
        To ensure all connections are properly closed, **you should always
        call shutdown() on a Cluster instance when you are done with it**.

        Once shutdown, a Cluster should not be used for any purpose.
        """
        with self._lock:
            if self.is_shutdown:
                return
            else:
                self.is_shutdown = True

        if self._idle_heartbeat:
            self._idle_heartbeat.stop()

        self.scheduler.shutdown()

        self.control_connection.shutdown()

        for session in tuple(self.sessions):
            session.shutdown()

        self.executor.shutdown()

        _discard_cluster_shutdown(self)

    def __enter__(self):
        return self