As we know, Hedwig system is a topic-based pub/sub system. One
subscriber in Hedwig system is simply one client, however, under the
environment of cloud-computing and distributed system, one subscriber may
not be just one client but a cluster with multiple clients in it. Besides,
original Hedwig system just has pub/sub model but actually many enterprises
ask a demand for message queue model.
To satisfy this, we want to modify original Hedwig system by
adding *message
queue model*. In the modified Hedwig system, not only pub/sub model but
also message queue model is available. The attachment of this email is
our design document. We want to discuss with you all, and waiting for
your valuable advice,thank you!
