Apache Druid

Community members have been testing it out and improving it but I believe it is still considered <https://druid.apache.org/docs/latest/development/extensions-core/kubernetes.html|experimental>.

<https://www.linen.dev/s/apache-druid/t/8534407/Hi-all-I-have-been-experiencing-the-error-below-lately-after|This is an archived thread that goes into some detail about both>:
• <https://druid.apache.org/docs/latest/development/extensions-core/kubernetes.html|druid-kubernetes-extension> - replaces zookeeper for its node discovery and leader election functions
• <https://druid.apache.org/docs/latest/development/extensions-contrib/k8s-jobs.html|kubernetes-overlord-extensions >- removed the need for Middle Managers, spawns Peon containers on demand instead.