The Yar_Client_Protocol_Exception class
Thrown when the response from the RPC service violates the Yar protocol, for example an unsupported protocol address or a malformed response header (exception code YAR_ERR_PROTOCOL).
Intro
Thrown when the response from the RPC service violates the Yar protocol, for example an unsupported protocol address or a malformed response header (exception code YAR_ERR_PROTOCOL).
As of Yar 2.4.0 this also includes a response whose transaction id does not match the id of the request it answers. The client validates the i field of each response; a response carrying a different, non-zero transaction id (for example one misrouted by a proxy) is rejected. Responses with a zero or missing transaction id are still accepted for backward compatibility with older servers.