|When installing the AutoSSH rpm on a cluster node, fetching the autossh package failed. Multiple mirrors were tried but a lot of them resulted in 404/ timed out errors.
autossh independently and then try installing the script.
|Change in port number.
||Delete your registration attempt from pending registrations tab and add the cluster again with right port number. Note that you must run the command systemctl stop ccm-tunnel@CM.service before you run
|Connection refused even though the
systemctl status ccm-tunnel@CM.service shows that the autossh client is running.
|Make sure you copied the right ssh setup files for the cluster or check if the port number CCM_TUNNEL_SERVICE_PORT in
cm_reverse_tunnel.conf is your Cloudera Manager's port number.
|When running install script on cluster node, the ssh tunnel could not be established (as indicated in the logs generated using journalctl -xe).
||Check if outbound connection to CDP control plane (host/port = CCM_HOST/CCM_SSH_PORT) is allowed. Make sure to check the firewall rules.