Add a new API GET /tenants/{tenantName}/rebalanceJobs

[J-HowHuang]

Purpose

This API allows inquiries of all ongoing and historical tenant rebalance jobs for a given tenant.

Usage

Request:

GET /tenants/<tenant_name>/rebalanceJobs

Response:
A map of all tenant rebalance job ID to their job metadata, as of the metadata in /CONTROLLER_JOBS/TENANT_REBALANCE in ZK, whose tenantName is <tenant_name>

Example

curl -X 'GET' \
  'http://localhost:9000/tenants/DefaultTenant/rebalanceJobs' \
  -H 'accept: application/json'

{
  "40160692-2bac-4d1c-a175-d485438e831a": {
    "jobId": "40160692-2bac-4d1c-a175-d485438e831a",
    "tenantName": "DefaultTenant",
    "submissionTimeMs": "1752779583413",
    "jobType": "TENANT_REBALANCE",
    "REBALANCE_PROGRESS_STATS": "{\"startTimeMs\":1752779576600,\"completionStatusMsg\":\"Successfully rebalanced tenant DefaultTenant.\",\"tableStatusMap\":{\"meetupRsvpJson_REALTIME\":\"PROCESSED\",\"meetupRsvp_REALTIME\":\"PROCESSED\",\"upsertMeetupRsvp_REALTIME\":\"Table is already balanced\",\"githubEvents_REALTIME\":\"PROCESSED\",\"upsertPartialMeetupRsvp_REALTIME\":\"Table is already balanced\",\"upsertJsonMeetupRsvp_REALTIME\":\"Table is already balanced\",\"fineFoodReviews_REALTIME\":\"Table is already balanced\",\"dailySales_REALTIME\":\"PROCESSED\",\"meetupRsvpComplexType_REALTIME\":\"PROCESSED\",\"airlineStats_REALTIME\":\"PROCESSED\"},\"totalTables\":10,\"remainingTables\":0,\"tableRebalanceJobIdMap\":{\"meetupRsvpJson_REALTIME\":\"5f382d3c-b8a1-4581-8007-d4ba93358069\",\"meetupRsvp_REALTIME\":\"6a80fa42-2a6f-40a8-bae4-6aa6c503beaa\",\"upsertMeetupRsvp_REALTIME\":\"915427a6-29ed-4657-aa62-71aad5fd9703\",\"githubEvents_REALTIME\":\"e98012e1-2d1e-4af3-a47f-feb95f8d8b13\",\"upsertPartialMeetupRsvp_REALTIME\":\"8377867e-9601-456a-b521-e2c55fff73ac\",\"upsertJsonMeetupRsvp_REALTIME\":\"6a5b46fb-0973-49ef-8615-8f6874e09037\",\"fineFoodReviews_REALTIME\":\"b74f1e73-33c6-428a-92a7-52c3d6ed7c5c\",\"dailySales_REALTIME\":\"9f5483f5-ffb8-4952-ab39-46b717c6aaff\",\"meetupRsvpComplexType_REALTIME\":\"e4ad9865-c175-47b4-aacb-851e89d9603b\",\"airlineStats_REALTIME\":\"6669ed57-6b7c-45c4-b7d4-0b4c837bc045\"},\"timeToFinishInSeconds\":6}"
  }
}

[somandal]

lgtm! thanks for adding this!