[Backup Service] [Investigate] Authentication failed

{'end': '2021-04-14T07:05:52.528568352-07:00',

 'error': 'exit status 1: failed to execute cluster operations: failed to execute bucket operation for bucket \'bucket1\': failed to transfer bucket data for bucket \'bucket1\': failed to transfer key value data: failed to transfer key value data: failed to initialise worker 3: failed to get gocbcore DCP agent: agent failed to connect to the cluster: authentication failure | \{"status_code":32,"document_key":"SCRAM-SHA512","bucket":"bucket1","error_name":"AUTH_ERROR","error_description":"Authentication failed","opaque":5,"ref":"61bb7970-4fe1-4d59-8088-7ae920b2daae","last_dispatched_to":"172.23.121.78:11210","last_dispatched_from":"172.23.106.238:45216","last_connection_id":"d088b49ef7a4894c/079a126663e504b4"}',

 'error_code': 2,

 'node_runs': [{'end': '2021-04-14T07:05:52.498457871-07:00',

                'error': 'exit status 1: failed to execute cluster operations: failed to execute bucket operation for bucket \'bucket1\': failed to transfer bucket data for bucket \'bucket1\': failed to transfer key value data: failed to transfer key value data: failed to initialise worker 3: failed to get gocbcore DCP agent: agent failed to connect to the cluster: authentication failure | \{"status_code":32,"document_key":"SCRAM-SHA512","bucket":"bucket1","error_name":"AUTH_ERROR","error_description":"Authentication failed","opaque":5,"ref":"61bb7970-4fe1-4d59-8088-7ae920b2daae","last_dispatched_to":"172.23.121.78:11210","last_dispatched_from":"172.23.106.238:45216","last_connection_id":"d088b49ef7a4894c/079a126663e504b4"}',

                'error_code': 2,

                'node_id': '30ff20027c87bcb7260bc9f7046b6daa',

                'out': None,

                'progress': 0.0,

                'start': '2021-04-14T07:01:29.180923304-07:00',

                'status': 'failed'}],

 'start': '2021-04-14T06:52:03.779083436-07:00',

 'status': 'failed',

 'target_cluster': None,

 'task_name': 'task0',

 'type': 'BACKUP'}