Error Message :
[19/Jun/2018 02:05:43 +0000] 4343 MainThread agent INFO CM server guid: 2994b67a-d726-4b5f-a389-6e17214dcf00
[19/Jun/2018 02:05:43 +0000] 4343 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels
[19/Jun/2018 02:05:43 +0000] 4343 MainThread parcel INFO Agent does create users/groups and apply file permissions
[19/Jun/2018 02:05:43 +0000] 4343 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache
[19/Jun/2018 02:05:43 +0000] 4343 MainThread agent ERROR Error, CM server guid updated, expected 2994b67a-d726-4b5f-a389-6e17214dcf00, received 88ac9a7c-0b7a-48af-a8d0-93e67b496056
[19/Jun/2018 02:05:43 +0000] 4343 MainThread agent INFO CM server guid: 2994b67a-d726-4b5f-a389-6e17214dcf00
[19/Jun/2018 02:05:43 +0000] 4343 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels
[19/Jun/2018 02:05:43 +0000] 4343 MainThread parcel INFO Agent does create users/groups and apply file permissions
[19/Jun/2018 02:05:43 +0000] 4343 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache
[19/Jun/2018 02:05:43 +0000] 4343 MainThread agent ERROR Error, CM server guid updated, expected 2994b67a-d726-4b5f-a389-6e17214dcf00, received 88ac9a7c-0b7a-48af-a8d0-93e67b496056
Solution :
Fixed it by deleting /var/lib/cloudera-scm-agent/cm_guid on each node.
Restart cloudera agent .