Cloudera Manager server HA.
Following error showed up when trying to start Cloudera manager Server
ERROR WebServerImpl:com.cloudera.server.web.cmf.search.components.SearchRepositoryManager: No read permission to the server storage directory [/var/lib/cloudera-scm-server]
Inspite of this error cloudera manager started without any problem.
But, when Cloudera management agents were not able to connect to the server.
Error getting predicates org.apache.avro.AvroRemoteException: java.net.ConnectException: Connection refused
note: Heartbeat to the server was successful.