Re: Post portem of a large Cassandra datacenter migration.

For 1 and 3 have you looked CASSANDRA-8611 For 4, you don't need to attach a profiler to check if GC is a problem. Just grep the system log for GCInspector. All the best, [image: datastax_logo.png] Sebastián

Post portem of a large Cassandra datacenter migration.

We just finished up a pretty large migration of about 30 Cassandra boxes to a new datacenter. We'll be migrating to about 60 boxes here in the next month so scalability (and being able to do so cleanly) is important. We also completed an Elasticsearch migration at the same time. The ES