Hi Robert, Thanks for helping me (again). As you know, I'm a real newbie.
So I fetched the whole apache-cassandra (not the /var/lib/cassandra) folder from my first server to my second server. So I'm sure to use the exact same version. I have changed the token of the second node to 85070591730234615865843651857942052864 as http://blog.milford.io/cassandra-token-calculator/ gave me. Here's my current topology : create keyspace mykeyspace with placement_strategy = 'NetworkTopologyStrategy' and strategy_options = {DC1 : 1} and durable_writes = true; so I should update with update keyspace KEYSPACE_NAME with storage_options = {DC1 : 2}; and then : $ nodetool repair (on both nodes) Knowing that Server 1 and Server 2 are from the same Provider, but not on the Same Data Center (Ping is really fast, not sure if that comes in count : ± 0.350 ms) Should I change the cassandra-topology.properties file ? (it is currently the out-of-the-box version) Thank you. Morgan. Le 13 août 2013 à 01:22, Robert Coli <rc...@eventbrite.com> a écrit : > On Mon, Aug 12, 2013 at 4:19 PM, Morgan Segalis <msega...@gmail.com> wrote: > It is still a little fuzzy when it comes to calculate a token for 50% > distribution… How do I do that, it is not like I wanted to have 10,23% on one > node, and 89,77% and the other ;-) > > The "feature" which picks a random token and results in distributions like > this has been removed from upstream. > > for 2 nodes it tells me to put 85070591730234615865843651857942052864 on the > second node. (For 2 node calculation) and the first one at 0. > > How come I can get 50% on both nodes if all data are replicated ? > > Briefly, you will get effective ownership = 100% if you up the RF so that it > = N. > > Two nodes, each of which own 50% of the "token range", but with a RF=2 means > "ownership" is 50%, but "effective ownership" is 100%. > > =Rob >
