cassandra.io.asyncioreactor¶

asyncio Event Loop

class cassandra.io.asyncioreactor.AsyncioConnection(*args, **kwargs)¶

An implementation of Connection that uses the asyncio module in the Python standard library for its event loop.

Supports SSL connections via asyncio’s native TLS transport, which avoids the incompatibility between ssl.SSLSocket and asyncio’s low-level socket methods (sock_sendall, sock_recv).

TLS session resumption (Cluster.ssl_session_cache) is not available on this reactor: the handshake happens inside loop.create_connection(..., ssl=...), which offers no point at which a cached session could be restored.

classmethod initialize_reactor()¶

Called once by Cluster.connect(). This should be used by implementations to set up any resources that will be shared across connections.