[Verse 1]
ZooKeeper's gone, we've moved ahead
KRaft controller leads instead
Dynamic quorum's here to stay
Add and remove without delay
No restart needed anymore
Eight five three opens the door
[Chorus]
The road ahead is crystal clear
Dynamic quorum, leader here
Scale to millions, watch it grow
KRaft four point oh steals the show
Metadata flowing fast and free
Post-ZooKeeper destiny
[Verse 2]
Nine six six brings something new
Eligible leaders, just a few
Not every replica can lead
Only the chosen ones we need
Controller picks the worthy ones
Until the leadership race runs
[Chorus]
The road ahead is crystal clear
Dynamic quorum, leader here
Scale to millions, watch it grow
KRaft four point oh steals the show
Metadata flowing fast and free
Post-ZooKeeper destiny
[Bridge]
Tiered storage coming soon
Metadata spread around the moon
Geographic replication
Cross the world's coordination
Future holds such grand designs
Kafka's crossing all the lines
[Verse 3]
Lab six puts us to the test
Five hundred thousand at our best
Partitions flowing like a stream
Measure failover, live the dream
Controller switching, brokers sync
Convergence faster than you think
[Chorus]
The road ahead is crystal clear
Dynamic quorum, leader here
Scale to millions, watch it grow
KRaft four point oh steals the show
Metadata flowing fast and free
Post-ZooKeeper destiny
[Outro]
Benchmark shows the future's bright
KRaft cluster shining in the light
No more restarts, no more pain
Dynamic membership's our gain