I have same question. I read the source code of NetworkTopologyStrategy, seems it always put replica on the first nodes on the ring of the DC. If I am misunderstand, It seems those nodes will became hot spot. Why NetworkTopologyStrategy works that way? is there some alternative can avoid this shortcoming?
Thanks in advance. Peter 发件人: Aaron Morton [mailto:aa...@thelastpickle.com] 发送时间: 2011年2月16日 3:56 收件人: user@cassandra.apache.org 主题: Re: Partitioning You can using the Network Topology Strategy see http://wiki.apache.org/cassandra/Operations?highlight=(topology)|(network)#Network_topology and NetworkTopologyStrategy in the conf/cassandra.yaml file. You can control the number of replicas to each DC. Also look at conf/cassandra-topology.properties for information on how to tell cassandra about your network topology. Aaron On 16 Feb, 2011,at 05:10 AM, "RW>N" <s5a...@gmail.com> wrote: Hi, I am new to Cassandra and am evaluating it. Following diagram is how my setup will be: http://bit.ly/gJZlhw Here each oval represents one data center. I want to keep N=4. i.e. four copies of every Column Family. I want one copy in each data-center. In other words, COMPLETE database must be contained in each of the data centers. Question: 1. Is this possible ? If so, how do I configure (partitioner, replica etc) ? Thanks AJ P.S excuse my multiple posting of the same. I am unable to subscribe for some reason. -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Partitioning-tp6028132p6028132.html Sent from the cassandra-u...@incubator.apache.org<mailto:cassandra-u...@incubator.apache.org> mailing list archive at Nabble.com<http://Nabble.com>.
