Hello, Jonathan, From: "Jonathan Ellis" <jbel...@gmail.com> > There is no reason Cassandra cannot scale to 1000s or more nodes with > the current architecture.
Oh, really, I got an impression that the gossip exchanges limit the number of nodes in a cluster when I read the Dynamos's paper and "Cassandra - A Decentralized Structured Storage System" written by Avinash Lakshman. As i quoted in my first mail, Amazon says that Dynamo is designed to scale to a couple hundreds of nodes, not thousands. In addition, previously mentioned paper on Cassandra writes as follows (though this does not directly say that Cassandra does not scale to more than a thousand nodes): "Cassandra aims to run on top of an infrastructure of hundreds of nodes (possibly spread across different data centers)." Thank you so much for taking your precious time for me. I would appreciate if you cloud give me your thoughts if you remember some technical challenges that could cause difficulties in a cluster which has petabytes of data and thousands of nodes. Regards, Takayuki Tsunakawa
