pool – Pool module for use with a MongoDB client.

class pymongo.pool.SocketInfo(sock, pool, address, id)

Store a socket with some metadata.

• authenticate(credentials)

  Log in to the server and store these credentials in authset.

  Can raise ConnectionFailure or OperationFailure.

  Parameters:	credentials: A MongoCredential.

• check_auth(all_credentials)

  Update this socket’s authentication.

  Log in or out to bring this socket’s credentials up to date with those provided. Can raise ConnectionFailure or OperationFailure.

  Parameters:	all_credentials: dict, maps auth source to MongoCredential.

• close_socket(reason)

  Close this connection with a reason.

• command(dbname, spec, slave_ok=False, read_preference=Primary(), codec_options=CodecOptions(document_class=dict, tz_aware=False, uuid_representation=UuidRepresentation.PYTHON_LEGACY, unicode_decode_error_handler=’strict’, tzinfo=None, type_registry=TypeRegistry(type_codecs=[], fallback_encoder=None)), check=True, allowable_errors=None, check_keys=False, read_concern=None, write_concern=None, parse_write_concern_error=False, collation=None, session=None, client=None, retryable_write=False, publish_events=True, user_fields=None, exhaust_allowed=False)

  Execute a command or raise an error.

  Parameters:

  dbname: name of the database on which to run the command spec: a command document as a dict, SON, or mapping object slave_ok: whether to set the SlaveOkay wire protocol bit read_preference: a read preference codec_options: a CodecOptions instance check: raise OperationFailure if there are errors allowable_errors: errors to ignore if check is True check_keys: if True, check spec for invalid keys read_concern: The read concern for this command. write_concern: The write concern for this command. parse_write_concern_error: Whether to parse the writeConcernError field in the command response. collation: The collation for this command. session: optional ClientSession instance. client: optional MongoClient for gossipping $clusterTime. retryable_write: True if this command is a retryable write. publish_events: Should we publish events for this command? user_fields (optional): Response fields that should be decoded using the TypeDecoders from codec_options, passed to bson._decode_all_selective.

• idle_time_seconds()

  Seconds since this socket was last checked into its pool.

• legacy_write(request_id, msg, max_doc_size, with_last_error)

  Send OP_INSERT, etc., optionally returning response as a dict.

  Can raise ConnectionFailure or OperationFailure.

  Parameters:	request_id: an int. msg: bytes, an OP_INSERT, OP_UPDATE, or OP_DELETE message, perhaps with a getlasterror command appended. max_doc_size: size in bytes of the largest document in msg. with_last_error: True if a getlasterror command is appended.

• receive_message(request_id)

  Receive a raw BSON message or raise ConnectionFailure.

  If any exception is raised, the socket is closed.

• send_cluster_time(command, session, client)

  Add cluster time for MongoDB >= 3.6.

• send_message(message, max_doc_size)

  Send a raw BSON message or raise ConnectionFailure.

  If a network exception is raised, the socket is closed.

• socket_closed()

  Return True if we know socket has been closed, False otherwise.

• validate_session(client, session)

  Validate this session before use with client.

  Raises error if this session is logged in as a different user or the client is not the one that created the session.

• write_command(request_id, msg)

  Send “insert” etc. command, returning response as a dict.

  Can raise ConnectionFailure or OperationFailure.

  Parameters:	request_id: an int. msg: bytes, the command message.