The config is not persisted after the balance-hot-region-scheduler is started #5701
Description
Bug Report
What did you do?
- Start a cluster
ETCDCTL_API=3 tiup ctl:{} etcd get --endpoints={} --prefix "/pd/{}/scheduler_config/balance-hot-region-scheduler"
What did you expect to see?
- Json config string
What did you see instead?
- null
What version of PD are you using (pd-server -V)?
v6.3.0