How to deploy executors in UI

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when I execute “rm -rf /var/lib/dremio/*”
There is no “No Cluster Ident” error, but the log still shows:

DEBUG c.d.s.coordinator.zk.ZKClusterClient - Connect: host1:5181, zkRoot: dremio2,host2:5181/dremio2,host3:5181, clusterId: dremio