[Verse 1]
ActiveControllerCount tells the tale
One means healthy, zero means you'll fail
In your cluster there should be just one
Check this metric till the day is done
[Chorus]
Watch the numbers, read the signs
JMX metrics draw the lines
Raft-metrics hold the key
To your KRaft cluster's destiny
Commit-latency, current-leader too
Log-end-offset guides you through
[Verse 2]
Current-leader shows who's in command
Log-end-offset helps you understand
How far your metadata has grown
MetadataLoader seeds you've sown
[Chorus]
Watch the numbers, read the signs
JMX metrics draw the lines
Raft-metrics hold the key
To your KRaft cluster's destiny
Commit-latency, current-leader too
Log-end-offset guides you through
[Bridge]
Last-applied-offset tracks the state
Snapshot-loading shows you wait
Fenced brokers in your logs appear
Leader elections crystal clear
Snapshot failures raise alarms
Dashboard charts protect from harms
[Verse 3]
Grafana panels paint the view
Controller health in red and blue
Log patterns whisper warnings soft
When brokers fence or leaders scoff
[Chorus]
Watch the numbers, read the signs
JMX metrics draw the lines
Raft-metrics hold the key
To your KRaft cluster's destiny
Commit-latency, current-leader too
Log-end-offset guides you through
[Outro]
Monitor close, observe with care
KRaft cluster secrets hanging there
Dashboard wisdom, metrics true
Observability sees you through