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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Update of "HedWig" by mahadevkonar
Date Wed, 17 Nov 2010 22:31:11 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.

The "HedWig" page has been changed by mahadevkonar.
http://wiki.apache.org/hadoop/HedWig?action=diff&rev1=2&rev2=3

--------------------------------------------------

  == Hedwig ==
  
- Hedwig is a '''publish-subscribe''' system designed to carry large amounts of data across
the internet in a '''guaranteed-delivery'' fashion from those who produce it ('''publishers''')
to those who are interested in it ('''subscribers'''). The goals of Hedwig are:
+ Hedwig is a '''publish-subscribe''' system designed to carry large amounts of data across
the internet in a '''guaranteed-delivery''' fashion from those who produce it ('''publishers''')
to those who are interested in it ('''subscribers'''). The goals of Hedwig are:
  
     1 *Guaranteed Delivery*: The messages may not be lost even when a particular subscriber
goes offline for extended periods of time.
     1 *Topic-based*: Publishes and subscribes happen to a topic. The system should scale
to ~10^6 topics with ~10 subscribers on each topic.

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