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Solr : The Cloudera Manager Agent is not able to communicate with this role's web server.

Solr : The Cloudera Manager Agent is not able to communicate with this role's web server.




It is a 3 node cluster. TLS and Kerberos is enabled. TLS is enabled with self signed certificates. Everything thing except Solr is working in cluster.


in solr logs error , I notice following error


2016-06-09 16:37:06,944 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server Will not attempt to authenticate using SASL (unknown error)
2016-06-09 16:37:06,944 INFO org.apache.zookeeper.ClientCnxn: Socket connection established, initiating session, client: /, server:
2016-06-09 16:37:06,946 INFO org.apache.zookeeper.ClientCnxn: Session establishment complete on server, sessionid = 0x15536eb03610078, negotiated timeout = 30000
2016-06-09 16:37:06,946 INFO Watcher name:ZooKeeperConnection got event WatchedEvent state:SyncConnected type:None path:null path:null type:None
2016-06-09 16:37:06,946 INFO Client is connected to ZooKeeper
2016-06-09 16:37:06,975 INFO Register node as live in ZooKeeper:/live_nodes/
2016-06-09 16:37:06,977 INFO makePath: /live_nodes/
2016-06-09 16:37:06,979 ERROR
org.apache.zookeeper.KeeperException$NoAuthException: KeeperErrorCode = NoAuth for /live_nodes/
        at org.apache.zookeeper.KeeperException.create(
        at org.apache.zookeeper.KeeperException.create(
        at org.apache.zookeeper.ZooKeeper.create(



I am not sure about reason of error. It seems to be somehow it is not able to authenticate.

a) I have regenerated Kerberos principals for all the servers.

b) I have also uninstalled Solr and then installed it again.


But this error remains still. Request help if someone can guide me , how to resolve it.


Thanks and Regards