On Fri, Sep 16, 2011 at 9:42 AM, Yan Chunlu <springri...@gmail.com> wrote: > I am running local tests about upgrade cassandra. upgrade from 0.7.4 to > 0.8.5 > after upgrade one node1, two problem happened: > 1, node2 keep saying: > "Received connection from newer protocol version. Ignorning message." > is that normal behaviour?
Yes. It will take a few exchanges before the new node knows to use the older protocol with the 0.7 nodes. > 2, while running "describe cluster" on node1, it shows node2 unreachable: > Cluster Information: > Snitch: org.apache.cassandra.locator.SimpleSnitch > Partitioner: org.apache.cassandra.dht.RandomPartitioner > Schema versions: > UNREACHABLE: [node2] > 05f1ee3b-e063-11e0-97d5-63c2fb3f0ca8: [node1, node3] > node3 seems act normal. > > I saw the JMXPORT has changed since 0.8, is that the reason node was > unreachable? No. -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
