Backup scheduler in Tanzu Mission Control (TMC) displays time values as "NaN:NaN".

Products

• Tanzu Mission Control
• VMware Tanzu Mission Control

Issue/Introduction

You can see that the display time in TMC UI shows "NAN:NAN AM" in the schedule column.

Environment

Tanzu Mission Control (TMC)  

Cause

 The sync-agent is not able to authenticate with TMC and the error are visible in sync-agent pod logs.    

{"error":"rpc error: code = Unauthenticated desc = No valid authentication credentials","grpc.code":"Unauthenticated","grpc.method":"List","grpc.service":"vmware.tanzu.manage.agent.v1alpha1.feature.FeatureResourceService","grpc.time_ms":144.624,"level":"info","msg":"finished client unary call","span.kind":"client","sub-component":"tmc-context","system":"grpc","time":"2025-01-31T02:38:05Z","tmc-interceptor":"unary"}

Resolution

In order to resolve this issue, Restart the sync-agent pod running in vmware-system-tmc.

After the sync-agent pod is up you can refresh the Tanzu Mission Control UI. Display time will reflect correctly.