Owen O'Malley wrote:
On Jan 25, 2009, at 2:02 PM, nitesh bhatia wrote:
Apple provides opensource discovery service called Bonjour (zeroconf).
I don't know enough about Zeroconf to be able to answer definitively,
but I suspect the hardest bit would be figuring out the approach. Of
course Hadoop has to continue to work on other platforms, so
cross-platform strategies are better.
Take a look at ZooKeeper (a sub-project of Hadoop):
http://hadoop.apache.org/zookeeper/
Among other features ZooKeeper provides group membership and dynamic
configuration support -- you could modify the various Hadoop processes
to query & register with ZooKeeper when they come up. This could be used
for node/service discovery as well as auto configuration of the processes.
Patrick
