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OceanBase

A unified distributed database ready for your transactional, analytical, and AI workloads.

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DEPLOY YOUR WAY

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The best way to deploy and scale OceanBase

OceanBase Enterprise

Run and manage OceanBase on your infra

TRY OPEN SOURCE

OceanBase Community Edition

The free, open-source distributed database

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Open source AI native search database

Customer Stories

Real-world success stories from enterprises across diverse industries.

View All
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Mission-Critical Transactions

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Real-time Analytics

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    Modify a replica of a tenant

    Last Updated:2026-04-20 07:26:00  Updated
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    What is on this page
    Description
    Call description
    Prerequisite
    Request path
    Request parameters
    Response parameters
    Examples
    Sample request
    Sample response

    folded

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    Description

    You can call this operation to modify a replica of a tenant.

    Call description

    Prerequisite

    You have passed the authentication for the OCP application service.

    Request path

    POST /api/v2/ob/clusters/{id}/tenants/{tenantId}/modifyReplica

    Path parameters

    Parameter
    Type
    Required
    Example value
    Description
    id Long Yes 1 The ID of the cluster to which the tenant belongs.
    tenantId Long Yes 1 The ID of the tenant.

    Request parameters

    Parameter
    Type
    Required
    Example value
    Description
    zoneName String Yes foo The name of the tenant, which is unique in the cluster.
    replicaType String No FULL The type of the replica. Valid values:
  • FULL
  • LOGONLY
  • READONLY
  • resourcePool Object No -- --
    ├─unitSpecName Object No S1 The unit specifications. You can view the unit specifications on the Unit Specification Management page.
    ├─unitCount Integer No 1 The number of units.

    Response parameters

    Basic data structure

    Parameter
    Type
    Description
    data Object The information about the created tenant and asynchronous DAG tasks. For more information, see Task information.
    successful Boolean Indicates whether the request was successful.
    timestamp Datetime The timestamp when the server completed the request.
    duration Integer The time taken by the server to process the request, in milliseconds.
    status Integer An HTTP status code.
    traceId String The trace ID of the request. This trace ID is used for troubleshooting.
    server String The address of the application server that responded to the request.

    Examples

    Sample request

    POST /api/v2/ob/clusters/1/tenants/2/modifyReplica

    body:

    [
      {
        "zoneName": "zone1",
        "replicaType": "FULL",
        "resourcePool": {
          "unitSpecName": "S1",
          "unitCount": 1
        }
      }
    ]
    

    Sample response

    {
      "data": {
        "cluster": {
          "id": 20,
          "name": "ob_upgrade",
          "obClusterId": 20
        },
        "context": "Context(parallelIdx=-1, stringMap={tenant_id=3, cluster_id=20, zone_name=zone2}, listMap={})",
        "creator": {
          "id": 100,
          "name": "admin"
        },
        "id": 94494,
        "name": "Modify tenant replica",
        "startTime": "2021-03-01T15:12:07.419+08:00",
        "status": "RUNNING",
        "tasks": [
          {
            "description": "Wait alter locality",
            "downstreams": [
              112165
            ],
            "id": 112163,
            "name": "Wait alter locality",
            "operation": "EXECUTE",
            "status": "PENDING",
            "upstreams": [
              112164
            ]
          },
          {
            "description": "Prepare alter tenant",
            "downstreams": [
              112163
            ],
            "id": 112164,
            "name": "Prepare alter tenant",
            "operation": "EXECUTE",
            "status": "RUNNING",
            "upstreams": [
              
            ]
          },
          {
            "description": "Sync tenant information",
            "downstreams": [
              112166
            ],
            "id": 112165,
            "name": "Sync tenant information",
            "operation": "EXECUTE",
            "status": "PENDING",
            "upstreams": [
              112163
            ]
          },
          {
            "description": "Update tenant status",
            "downstreams": [
              
            ],
            "id": 112166,
            "name": "Update tenant status",
            "operation": "EXECUTE",
            "status": "PENDING",
            "upstreams": [
              112165
            ]
          }
        ],
        "tenant": {
          "id": 3,
          "name": "tenant1"
        }
      },
      "duration": 406,
      "server": "a83ad33525",
      "status": 200,
      "successful": true,
      "timestamp": "2021-03-01T15:12:07.449+08:00",
      "traceId": "71f24180979c487b"
    }
    

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    Description
    Call description
    Prerequisite
    Request path
    Request parameters
    Response parameters
    Examples
    Sample request
    Sample response