There can be several reasons that can cause this. Run host inspector to get a better understanding of the issue: CM -> Hosts -> All Hosts -> Inspect Hosts ... View more

Can you please provide more information? I.E.: - Did this happen during the Cluster installation wizard? if so, please provide a screenshot - Did other agents install without issue? - What version of CM and CDH are you using? - re you using TLS? - Can you provide the entire stack trace/error? ... View more

Hi @Neera456  If the HDFS role (or any role, for that matter) is stuck in a STOPPING or STARTING state, this means that there could have been an interruption when the supervisor sent it's one time ACK. To solve this, you can use the following KB article: https://community.cloudera.com/t5/Customer/Role-Managed-by-Cloudera-Manager-Stuck-in-Stopping-or/ta-p/75181   If this does not work, we can edit the ROLES table. please let me know if this works ... View more

Do you mean BDR? If so: - do you have a license applied to the CM UI? - Are you logged in as an administrator? ... View more

Do you have SSH running on the host? Also check forward and reverse hostname lookup. ... View more

As of CMP7.5.1 we do support CM HA: https://docs.cloudera.com/cloudera-manager/7.5.1/managing-clusters/topics/cm-high-availability.html ... View more

Are all the hosts healthy? To check go to: CM -> hosts -> All hosts ... View more

The speed unknown is simply stating that the agent could not collect the data that would allow the speed to be tested. The agent status being Bad, most likely means that the agent may not be heart - beating in. When this happens, check the heartbeat from the Host page. ... View more