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The "HedWig" page has been changed by mahadevkonar. http://wiki.apache.org/hadoop/HedWig?action=diff&rev1=5&rev2=6 -------------------------------------------------- While there are a lot of commercial and open-source products in the general pub-sub category, none of them satisfy all the above 4 requirements (they mostly fail on 3 and 4). - {{attachment:hedwig.jpg}} - - - ---+++ Architecture + == Architecture == At the highest level, Hedwig is a collection of *regions* spread across the internet. Any region may publish on a topic, and those messages must be delivered to any subscriber in any region that has subscribed to that topic. + {{attachment:hedwig.png}} - <center> - <img src="%ATTACHURLPATH%/global.png" width="500"/> - </center> <hline>
