william.lewis@uk.bnpparibas.com writes:
I am using pb to communicate in a client-server configuration. My client inherits from PBClientFactory. My server has a remote_take_root() method by which the client can connect to the server and pass in its root, thus allowing two-way communication. Is there anyway for the server to re-establish the connection (should it go down) in this setup, or is this the sole responsibility of the client?
The other posters in this thread have it exactly right. The RemoteReference that is received by your remote_take_root() method does not carry enough information to allow anyone else (including your server) to initiate a new connection to the Broker which hosts it. In this configuration, the "client" side (specifically the side which initiates the PB connection with a PBClientFactory) must be responsible for any sort of reconnection. Incidentally, in newpb this won't necessarily be the case. Both ends can listen on a TCP socket, and the RemoteReference that you receive may contain enough information to connect to its source. It is still a good idea to make exactly one side be responsible for things like reconnection, though, because otherwise you get a bunch of ugly race conditions as both sides attempt to connect at the same time. (newpb handles this for you, so you'll only get a single connection between the two Tubs, but it's still ugly). Also, the application level should be aware of the reconnection events, otherwise it becomes more difficult to be sure about which methods have been successfully invoked and which have not. cheers, -Brian