Hello, I got an error

zookeeper.request.timeout value is 0. feature enabled=

Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)

Socket error occurred: localhost/127.0.0.1:2181: Connection refused

while running the command

./pinot-admin.sh StartController

Any idea what could go wrong?

You need to first start a ZK instance before starting the controller