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OpenAPI Specification
openapi: 3.2.0
info:
title: Apache Helix REST Clusters Instances API
version: 1.0.0
description: REST API for managing Apache Helix clusters, instances, resources, and partition state assignments in distributed systems.
contact:
email: dev@helix.apache.org
license:
name: Apache 2.0
url: https://www.apache.org/licenses/LICENSE-2.0
servers:
- url: http://localhost:9100
description: Helix REST Service
tags:
- name: Instances
description: Instance management operations
paths:
/clusters/{clusterId}/instances:
get:
operationId: listInstances
summary: Apache Helix List Instances
description: List all instances (participants) registered in a Helix cluster.
tags:
- Instances
parameters:
- name: clusterId
in: path
required: true
schema:
type: string
responses:
'200':
description: Instances listed
content:
application/json:
schema:
type: object
properties:
instances:
type: array
items:
$ref: '#/components/schemas/Instance'
/clusters/{clusterId}/instances/{instanceName}:
get:
operationId: getInstance
summary: Apache Helix Get Instance
description: Get configuration and state of a specific Helix instance.
tags:
- Instances
parameters:
- name: clusterId
in: path
required: true
schema:
type: string
- name: instanceName
in: path
required: true
schema:
type: string
description: Instance name (e.g. localhost_12913)
responses:
'200':
description: Instance retrieved
content:
application/json:
schema:
$ref: '#/components/schemas/Instance'
'404':
description: Instance not found
components:
schemas:
Instance:
type: object
description: Helix cluster instance (participant) configuration
properties:
id:
type: string
description: Instance name
example: localhost_12913
hostName:
type: string
description: Hostname of the instance
example: localhost
port:
type: integer
description: Port number
example: 12913
enabled:
type: boolean
description: Whether the instance is enabled
example: true
tags:
type: array
items:
type: string
description: Instance tags