Re: Key factors for production readiness of Hedwig

2010-11-10 Thread Erwin Tam
Thanks for the offer to help Milind! We've covered most of the things that are still missing with Hedwig to make it more production ready. I mentioned having an engineering team mainly in the context of finding an internal team here at work to support and develop it. But we now have it open

Re: Verifying Changes

2010-11-10 Thread Patrick Hunt
Perhaps something similar to what Ben detailed here? (rendezvous) http://developer.yahoo.com/blogs/hadoop/posts/2009/05/using_zookeeper_to_tame_system/ Change the key, add child znode(s) that's deleted by the notified client(s) once it's read the changed value. Some details need to be worked out

Re: Key factors for production readiness of Hedwig

2010-11-10 Thread Patrick Hunt
On Wed, Nov 10, 2010 at 10:58 AM, Erwin Tam e...@yahoo-inc.com wrote: 1. Ops tools including monitoring and administration. Command port (4 letter words) for monitoring has worked extremely well for zk. Whatever you do put the command port on a separate port, and make it a full fledged feature