RE: NTS, vnodes and 0% chance of data loss

2014-05-16 Thread Mark Farnan
fred WITH replication = {'class': 'NetworkTopologyStrategy', 'DC2': '1', 'DC3': '1', 'DC1': '1'}; Regards Mark Farnan From: William Oberman [mailto:ober...@civicscience.com] Sent: Tuesday, May 13, 2

NTS, vnodes and 0% chance of data loss

2014-05-15 Thread William Oberman
I found this: http://mail-archives.apache.org/mod_mbox/cassandra-user/201404.mbox/%3ccaeduwd1erq-1m-kfj6ubzsbeser8dwh+g-kgdpstnbgqsqc...@mail.gmail.com%3E I read the three referenced cases. In addition, case 4123 references: http://www.mail-archive.com/dev@cassandra.apache.org/msg03844.html And

Re: NTS, vnodes and 0% chance of data loss

2014-05-14 Thread William Oberman
After sleeping on this, I'm sure my original conclusions are wrong. In all of the referenced cases/threads, I internalized "rack awareness" and "hotspots" to mean something different and wrong. A hotspot didn't mean multiple replicas in the same rack (as I had been thinking), it meant the process