Hi guys, I have a cluster with 5 nodes, cassandra 3.0.5, RF=2, PropertyFileSnitch. Three of the nodes were added initially, DC=PRD. The other two were added more recently.
The default for unknown nodes default=DC1:r1 (which is bad in my case, as it would have been nice to have PRD as default) As the three initial do not have the information about the later two in the properties file, they see node4 and node5 as in DC1:r1. I assume that: - 1-2-3 have mode data than 4 and 5 because all writes that come to 1-2-3 are replicated only on 1-2-3 (as there is no schema for DC1) and this is why 1,2,3 have more data and the cluster is unbalanced. - all writes that come to 4 and 5 are replicated on 1,2,3,4 and 5 as the property file snitch config has info about the entire cluster on 4 and 5. Is it save if I just update the network topology file on 1, 2, 3 and add lines about node 4 and 5, and then roll restart 4 and 5? Will the cluster balance itself? Currently 1, 2, 3 have about 16GB each and 4,5 about 6 GB each. Thanks, Robert
