Hi,
   Yannick also ask me about the JIRA for queue model support and I've created 
a JIRA https://issues.apache.org/jira/browse/BOOKKEEPER-616

> The attachment of this email  is  our design document. We want to discuss 
> with you all, and waiting for  your valuable advice,thank you!
----
I don't see any attachment in your email, could you attach your design document 
in the JIRA shown above? Thanks.

- Jiannan


From: Yidong Cui <[email protected]<mailto:[email protected]>>
Reply-To: 
"[email protected]<mailto:[email protected]>"
 
<[email protected]<mailto:[email protected]>>
Date: Friday, May 31, 2013 8:27 PM
To: Hedwig Project 
<[email protected]<mailto:[email protected]>>
Cc: hedwig 联系人 <[email protected]<mailto:[email protected]>>
Subject: Design new futures for Hedwig system——add "message queue model"

      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!


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