CockroachDB Nodes API
Retrieve information about all nodes in the cluster, including their status, address, locality, and operational metrics.
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OpenAPI Specification
openapi: 3.2.0
info:
title: CockroachDB Cluster Nodes API
description: The CockroachDB Cluster API is a REST API hosted by all nodes of a CockroachDB cluster that provides programmatic access to cluster status, node information, session data, range details, and alerting rules.
version: 2.0.0
contact:
name: Cockroach Labs Support
url: https://support.cockroachlabs.com
termsOfService: https://www.cockroachlabs.com/cloud-terms-and-conditions/
servers:
- url: https://localhost:8080
description: CockroachDB node HTTP port. Replace localhost with the host and 8080 with the configured --http-port of the target node.
security:
- sessionAuth: []
tags:
- name: Nodes
description: Retrieve information about all nodes in the cluster, including their status, address, locality, and operational metrics.
paths:
/api/v2/nodes/:
get:
operationId: ListNodes
summary: List nodes
description: Returns information about all nodes in the cluster, including each node's address, build information, locality, store metrics, and operational status. Requires admin-level authentication.
tags:
- Nodes
parameters:
- $ref: '#/components/parameters/limit'
- $ref: '#/components/parameters/offset'
responses:
'200':
description: List of cluster nodes returned successfully.
content:
application/json:
schema:
$ref: '#/components/schemas/ListNodesResponse'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
components:
schemas:
NodeDescriptor:
type: object
description: Identifies and locates a specific node within the CockroachDB cluster.
properties:
node_id:
type: integer
format: int32
description: Numeric identifier of the node.
address:
$ref: '#/components/schemas/Address'
attrs:
type: object
description: Node attribute key-value pairs used for zone configuration.
locality:
$ref: '#/components/schemas/Locality'
server_version:
type: object
description: CockroachDB server version running on this node.
build_tag:
type: string
description: Build tag string for the CockroachDB binary.
started_at:
type: integer
format: int64
description: Unix nanosecond timestamp when the node started.
cluster_name:
type: string
description: Name of the cluster this node belongs to.
sql_address:
$ref: '#/components/schemas/Address'
ListNodesResponse:
type: object
description: List of nodes in the CockroachDB cluster with pagination metadata.
properties:
nodes:
type: array
description: Array of node status objects.
items:
$ref: '#/components/schemas/NodeStatus'
next:
type: integer
description: Offset value to use to retrieve the next page of results. Absent when there are no more results.
BuildInfo:
type: object
description: Build and version metadata for the CockroachDB binary on a node.
properties:
go_version:
type: string
description: Go runtime version used to build CockroachDB.
tag:
type: string
description: Git tag of the CockroachDB release.
time:
type: string
description: Build timestamp.
revision:
type: string
description: Git revision hash of the build.
cgo_compiler:
type: string
description: CGO compiler version used in the build.
platform:
type: string
description: Target platform for the build (e.g. linux amd64).
distribution:
type: string
description: CockroachDB distribution type (e.g. CCL or OSS).
type:
type: string
description: Build type (e.g. release or development).
channel:
type: string
description: Release channel the binary belongs to.
Address:
type: object
description: Network address of a CockroachDB node.
properties:
network_field:
type: string
description: Network protocol (e.g. tcp).
address_field:
type: string
description: Host and port of the node (e.g. 10.0.0.1:26257).
Error:
type: object
description: Standard error response returned by the Cluster API.
properties:
error:
type: string
description: Human-readable description of the error.
NodeStatus:
type: object
description: Status and metadata for a single node in the CockroachDB cluster, including address, build details, locality, store information, and activity metrics.
properties:
desc:
$ref: '#/components/schemas/NodeDescriptor'
build_info:
$ref: '#/components/schemas/BuildInfo'
started_at:
type: integer
format: int64
description: Unix nanosecond timestamp when the node process started.
updated_at:
type: integer
format: int64
description: Unix nanosecond timestamp of the most recent status update.
metrics:
type: object
description: Map of metric name to value for this node, covering CPU, memory, disk, network, and SQL throughput metrics.
additionalProperties:
type: number
store_statuses:
type: array
description: Status objects for each store (disk) on this node.
items:
type: object
args:
type: array
description: Command-line arguments the node process was started with.
items:
type: string
env:
type: array
description: Environment variables set in the node process.
items:
type: string
activity:
type: object
description: Per-node activity metrics including bytes sent and received.
Locality:
type: object
description: Geographic or topological locality tiers assigned to the node, used for zone configuration and replica placement.
properties:
tiers:
type: array
description: Ordered list of locality tiers from most general to most specific.
items:
type: object
properties:
key:
type: string
description: Locality tier key (e.g. region, zone, rack).
value:
type: string
description: Locality tier value (e.g. us-east-1, us-east-1a).
parameters:
limit:
name: limit
in: query
description: Maximum number of results to return in a single response.
schema:
type: integer
format: int32
minimum: 1
maximum: 1000
offset:
name: offset
in: query
description: Number of results to skip before returning data. Used for offset-based pagination.
schema:
type: integer
format: int32
minimum: 0
responses:
Unauthorized:
description: Authentication is required. The X-Cockroach-API-Session header is missing or the session has expired.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
Forbidden:
description: The authenticated user does not have admin privileges required to access this endpoint.
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
securitySchemes:
sessionAuth:
type: apiKey
in: header
name: X-Cockroach-API-Session
description: Session token obtained from the /api/v2/login/ endpoint. Include this header with all authenticated requests.
externalDocs:
description: CockroachDB Cluster API Documentation
url: https://www.cockroachlabs.com/docs/stable/cluster-api