[Verse 1]
When it's time to leave ZooKeeper behind
Don't panic, there's a path that's well-designed
No big bang cutover, no midnight crash
Just a bridge that helps you make the dash
From the old coordination way
To KRaft's controller led array
[Chorus]
Bridge mode, bridge mode, that's the way to go
ZK to KRaft, take it nice and slow
Three point three for early access start
Three point six for production heart
Four point oh waves ZooKeeper goodbye
Bridge mode gets you there, here's why
[Verse 2]
First phase running in ZooKeeper mode
Same old metadata, same old code
Controllers talking to ZK trees
Managing your cluster with familiar ease
But underneath the preparation's done
For the migration that's about to come
[Chorus]
Bridge mode, bridge mode, that's the way to go
ZK to KRaft, take it nice and slow
Three point three for early access start
Three point six for production heart
Four point oh waves ZooKeeper goodbye
Bridge mode gets you there, here's why
[Bridge]
ZK mode to ZK plus KRaft bridge
Walking safely cross that metadata ridge
Then KRaft only, standing on its own
Controllers got a metadata home
Version by version, step by step
Migration promises that we can keep
[Verse 3]
Final phase is KRaft only mode
No more ZooKeeper in your cluster code
Controllers managing their own state
Quorum consensus seals your data fate
Bridge has carried you across the stream
To the KRaft controller team
[Chorus]
Bridge mode, bridge mode, that's the way to go
ZK to KRaft, take it nice and slow
Three point three for early access start
Three point six for production heart
Four point oh waves ZooKeeper goodbye
Bridge mode gets you there, here's why
[Outro]
No big bang, just a bridge today
Migration's smooth the KRaft way