Re: [libvirt] Raising limits for our RPC messages

So I think it is reasonable to simply increase the buffer size as we have done before. That said, we should bear this problem in mind before adding more "bulk query" APIs, as it isn't sensible to carry on increasing RPC message size forever. As somepoint we have to consider that serializing 100's of MB of data into an RPC message is an inherantly inefficient design, and consider alternative API designs without this. For bulk stats query we could do something totally radical and have the facility for the client to send us a shared memory region which we asynchronously populate with stats, avoiding the RPC layer entirely. Obviously only works for local connections, but I get the impression that most mgmt apps have a node-local agent talking to libvirtd anyway.