OBSDATA-8616 Apply Confluent Patches on top of Druid 30.0.1

[Suraj Goel (suraj-goel)]

Description

• Added the confluent specific patches on top of Druid - 30.0.1
• Fixed the code and unit test cases of the patches as per druid-30

Release note

Druid 30 Release Note - Ref

Testing

• Built the project locally (including Unit test cases locally)
• Created a Docker Image and deployed it on Druid stag and Druid stag-358af
  • OpenSearch logs doesn't have any errors

Manual Changes Required for an upgrade an existing cluster

• Suspend all supervisors.
• Fix DateTimeParse Exception in coordinators and overlords
  • As soon as image is updated, we need to manually delete leaderelection configMaps for overlord and coordinator.
  • Refer to Coordinator crashes after upgrading to 29.0.0 apache/druid#15942

This PR has:

• been self-reviewed.
  • using the concurrency checklist (Remove this item if the PR doesn't have any relation to concurrency.)
• added documentation for new or modified features or behaviors.
• a release note entry in the PR description.
• added Javadocs for most classes and all non-trivial methods. Linked related entities via Javadoc links.
• added or updated version, license, or notice information in licenses.yaml
• added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader.
• added unit tests or modified existing tests to cover new code paths, ensuring the threshold for code coverage is met.
• added integration tests.
• been tested in a test Druid cluster.

[ravisharm]

"Manual Changes Required for an upgrade an existing cluster"
I dont think above section applies to us as we are building a new Druid cluster with 30.0.1 image. We are not upgrading Druid 25.0 running on Prodeks.

[Suraj Goel (suraj-goel)]

"Manual Changes Required for an upgrade an existing cluster" I dont think above section applies to us as we are building a new Druid cluster with 30.0.1 image. We are not upgrading Druid 25.0 running on Prodeks.

Yes, ravisharm.
Added as these changes were required in stag environments.

[ravisharm]

signed off for the rowsScanned and cpu metrics part.

[ravisharm]

While testing pls ensure below metrics show on Datadog:
query/planningTime
rowsScanned

[Suraj Goel (suraj-goel)]

While testing pls ensure below metrics show on Datadog: query/planningTime rowsScanned

Yes, Tested these metrics are coming in DD.

[ravisharm]

signed off on latest commit
2146672