@GangWar I did what you asked and i get this on the agent:   [11/May/2020 05:22:34 +0000] 6495 MainThread agent INFO To override these variables, use /etc/cloudera-scm-agent/config.ini. Environment variables for CDH locations are not used when CDH is installed from parcels. [11/May/2020 05:22:36 +0000] 6495 MainThread supervisor INFO Trying to connect to supervisor (Attempt 1) [11/May/2020 05:22:36 +0000] 6495 MainThread supervisor INFO Supervisor version: 3.0, pid: 1614 [11/May/2020 05:22:36 +0000] 6495 MainThread supervisor INFO Successfully connected to supervisor [11/May/2020 05:22:36 +0000] 6495 MainThread agent INFO Supervisor version: 3.0, pid: 1614 [11/May/2020 05:22:36 +0000] 6495 MainThread agent INFO Connecting to previous supervisor: agent-1614-1589173066. [11/May/2020 05:22:38 +0000] 6495 MainThread supervisor INFO Triggering supervisord update. [11/May/2020 05:22:38 +0000] 6495 MainThread _cplogging INFO [11/May/2020:05:22:38] ENGINE Bus STARTING [11/May/2020 05:22:38 +0000] 6495 MainThread _cplogging INFO [11/May/2020:05:22:38] ENGINE Started monitor thread '_TimeoutMonitor'. [11/May/2020 05:22:38 +0000] 6495 MainThread _cplogging INFO [11/May/2020:05:22:38] ENGINE Serving on http://127.0.0.1:9001 [11/May/2020 05:22:38 +0000] 6495 MainThread _cplogging INFO [11/May/2020:05:22:38] ENGINE Bus STARTED [11/May/2020 05:22:40 +0000] 6495 MainThread daemon INFO New monitor: (<cmf.monitor.host.HostMonitor object at 0x7f46e2d12ed0>,) [11/May/2020 05:22:40 +0000] 6495 MonitorDaemon-Scheduler daemon INFO Monitor ready to report: ('HostMonitor',) [11/May/2020 05:22:40 +0000] 6495 MainThread agent INFO Setting default socket timeout to 45 [11/May/2020 05:22:40 +0000] 6495 MainThread agent INFO Failed to read available parcel file: [Errno 2] No such file or directory: '/var/lib/cloudera-scm-agent/active_parcels.json' [11/May/2020 05:22:40 +0000] 6495 MainThread agent INFO Loading last saved hb response to complete initialization: /var/lib/cloudera-scm-agent/response.avro [11/May/2020 05:22:40 +0000] 6495 Monitor-HostMonitor network_interfaces INFO NIC iface ens5 doesn't support ETHTOOL (95) [11/May/2020 05:22:40 +0000] 6495 MainThread heartbeat_tracker INFO HB stats (seconds): num:1 LIFE_MIN:0.02 min:0.02 mean:0.02 max:0.02 LIFE_MAX:0.02 [11/May/2020 05:22:40 +0000] 6495 MainThread agent INFO CM server guid: 513d3669-b5a8-49c0-863a-c0396dff5c7b [11/May/2020 05:22:40 +0000] 6495 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels [11/May/2020 05:22:40 +0000] 6495 MainThread parcel INFO Agent does create users/groups and apply file permissions [11/May/2020 05:22:40 +0000] 6495 MainThread downloader INFO Downloader path: /opt/cloudera/parcel-cache [11/May/2020 05:22:40 +0000] 6495 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache [11/May/2020 05:22:40 +0000] 6495 MainThread throttling_logger WARNING Failed parsing alternatives line: rename string index out of range link best version is /usr/bin/file-rename [11/May/2020 05:22:40 +0000] 6495 MainThread agent INFO Flood daemon (re)start attempt [11/May/2020 05:22:42 +0000] 6495 MainThread firehoses INFO Reporting interval updated: 5.0 -> 60 [11/May/2020 05:22:42 +0000] 6495 MainThread agent ERROR Failed to handle Heartbeat Response: {u'firehoses': [{u'rol [big response....] ----------------------- Traceback (most recent call last): File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/agent.py", line 1528, in handle_heartbeat_response self._handle_heartbeat_response(response) File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/agent.py", line 1661, in _handle_heartbeat_response self._update_parcel_activation_state(response) File "/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/agent.py", line 1572, in _update_parcel_activation_state manage_old_parcels = old_response.get("create_parcel_symlinks") AttributeError: 'NoneType' object has no attribute 'get'   ... View more