Re: [druid-user] Re: Error: Unknown exception / No known server

What did you do to install and start it? Did you use the quickstart then try to scale up or out? It would be helpful to know what you did and what your environment is.

Thank You. I have fixed this after a lot of troubleshooting. I had to rename the metadata.DB file and restart Derby to fix this. For some reason, the Derby got corrupted when I started Druid for the first time using quickstart.