We just migrated from a 30 node cluster to a 45 node cluster. (so 15 new nodes)
By default we have auto_boostrap = false so we just push our config to the cluster, the cassandra daemons restart, and they're not cluster members and are the only nodes in the cluster. Anyway. While I was about 1/2 way done adding the 15 nodes, I had about 7 members of the cluster and 8 not yet joined. We are only doing 1 at a time because apparently bootstrapping more than 1 is unsafe. I did a rolling restart whereby I went through and restarted all the cassandra boxes. Somehow the new nodes auto boostrapped themselves EVEN though auto_bootstrap=false. We don't have any errors. Everything seems functional. I'm just worried about data loss. Thoughts? Kevin -- We’re hiring if you know of any awesome Java Devops or Linux Operations Engineers! Founder/CEO Spinn3r.com Location: *San Francisco, CA* blog: http://burtonator.wordpress.com … or check out my Google+ profile <https://plus.google.com/102718274791889610666/posts>