So reverse DNS wasn't working when I deployed my new cluster, thus all my Tablet Servers were showing up in the Monitor as IP addresses (even though all configuration files had hostnames only). Lesson learned: trust, but verify (and ensure your hardened base servers still have nslookup and/or dig on them).
Now that DNS is fixed, I want to wipe everything clean and re-init Accumulo to ensure everything is legit using hostnames to ensure the cluster is not tied to IP addresses. I know I need to do a new 'accumulo init' -- I'll pass in the same instance name, and my understanding is that will overwrite everything currently in Zookeeper. My question is: is there anything else I could/should do first to "clean up" from this botched instance? E.g. should I delete all files in HDFS, the write-ahead logs on the Tablet Servers, etc.? I'm running Accumulo 1.4.2. Thanks, Terry
