Re: Extracting Zab from Zookeeper

[Flavio Junqueira]

Not only it won't be trivial, but I don't have it completely clear that if we separate Zab and ZooKeeper you will have exactly what you need. In our previous discussions about this issue, we ended up concluding that we would need a richer interface than simply abcast and abdeliver. For example, one important aspect currently is stable storage for logging and checkpointing. To separate the ZooKeeper application and Zab we would have to decide which side would manage it, but both sides would need access to to it some way. It sounds like a good idea to think carefully if a separate Zab would really satisfy your requirements before spending time on the implementation.  -Flavio On Jan 22, 2011, at 8:43 AM, André Oriani wrote: If I do not reply soon, do not think I gave up. My employer is keeping me busy lately :) I will try take a look at the patch of jira Regards, André On Thu, Jan 20, 2011 at 09:45, Patrick Hunt <ph...@apache.org> wrote: It's non-trivial - but iirc the patches/links on ZOOKEEPER-30 show the finished work product from the original effort. I suspect that this would be a great starting point, most of the work being to "port" those changes onto the latest trunk. Ben what do you think? Was the original approach solid? Seems like a great starting point. Patrick On Thu, Jan 20, 2011 at 8:35 AM, André Oriani <aori...@gmail.com> wrote: Sure, I am interested in. What should I do besides reading the papers, downloading the code compiling and doing some code walkthrough ? Tks, André On Wed, Jan 19, 2011 at 11:32, Benjamin Reed <br...@yahoo-inc.com> wrote: it's funny, i was just thinking about this yesterday. no one is working on it, so it is still open. it is a non-trivial piece of work, but i'd be willing to give guidance if you are interested in it. ben ps - btw, this is definitely a d...@zookeeper.apache.org discussion :) On 01/18/2011 11:24 PM, André Oriani wrote: Hi, I need to implement a replication protocol and therefore I need total order broadcast primitive. I was thinking of using Zab. But I saw that the broadcast protocol is very intermixed with Zookeeper's tree. I heard of ZOOKEEPER-30 . What happen of it ? It still open. If code contribution is still needed I would be glad to do it  if someone could mentor me on the task. Thanks, André Oriani -- André Oriani MSc candidate at Computing Institute State University of Campinas - Brazil (temporarily at Sunnyvale, CA) flavio junqueira   research scientist   f...@yahoo-inc.com direct +34 93-183-8828   avinguda diagonal 177, 8th floor, barcelona, 08018, es phone (408) 349 3300    fax (408) 349 3301