When things are missing
Most of what follows is not an error. A developer's day is full of these, and each one has a wrong behaviour that looks like a right one.
A cluster shows a state instead of apps
unreachable · dial tcp 10.0.0.1:443: i/o timeout
VPN, DNS, or the cluster is down. kubeside shows no apps for it rather than an empty list, because an empty list is a claim about the cluster's contents.
One cluster failing never affects another. Every context has its own connection and its own state.
A cluster says unauthorized
unauthorized · the server has asked for the client to provide credentials
Your session expired. Re-run whatever authenticates you (aws sso login,
gcloud auth login) and reconnect. This is deliberately a different state from
unreachable, because the next action is different.
The scope says one namespace
scope: namespace team-a · listing namespaces was refused
Your role is namespace-scoped, which is normal. No Kubernetes API enumerates the namespaces a user may access, so a refused cluster-scoped list is an answer, not a failure. To see more, name them in the config:
defaults:
namespaces: [team-a, team-b]
A kind is named as partial
partial: CronJob
That kind could not be listed. A row might be missing. This is named precisely so you do not conclude the cluster has no CronJobs.
Metrics columns are gone
metrics: unavailable · metrics-server is not installed
Install metrics-server, point at Prometheus in the config, or read the rest without them. A zero is never shown for a reading nobody took.
The timeline starts recently
The cluster is the archive, and it prunes. revisionHistoryLimit removes old
ReplicaSets, and the apiserver expires events after roughly an hour. The horizon
marks exactly where the reconstruction ends. Anything earlier is genuinely gone
from the cluster, and no tool without a database can show it.
A control is disabled
It names the verb it needs. That sentence is the request to send to whoever manages your RBAC. See permissions.
Logs stop
Look for the edge. ended means the container exited, gone means the pod was
deleted, error carries the reason. A log view that simply went quiet would be
the failure worth worrying about.