---
title: "Update Scaler"
method: PUT
path: "/aws/emr/mrScaler/{mrScalerId}"
tags: ["Elastigroup AWS EMR Scaler"]
---

# Update Scaler

`PUT /aws/emr/mrScaler/{mrScalerId}`

Update an MR Scaler. Partial updating is supported.

## Parameters

- `#/paths/~1azure~1costs/get/parameters/0` — unresolved $ref
- `#/paths/~1aws~1emr~1mrScaler~1%7BmrScalerId%7D/get/parameters/1` — unresolved $ref

## Request body

- union
  - object — An EMR Scaler Object
    - `mrScaler` object — MR Scaler Object - Update Task Capacity
      - `compute` object
        - `instanceGroups` object
          - `taskGroup` object
            - `capacity` object
              - …
  - object — An EMR Scaler Object
    - `mrScaler` object — MR Scaler Object - Update Dynamic Volume Size in EBS Configuration
      - `compute` object
        - `instanceGroups` object
          - `taskGroup` object
            - `ebsConfiguration` object
              - …

## Other responses

- `200` — unresolved $ref
- `400` — Bad Request

---

[API](https://skmtc.net/spot/apis/spot-by-flexera-api.md) · [All operations](https://skmtc.net/spot/apis/spot-by-flexera-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/spot/spot-by-flexera-api/revisions/72813baf8d47/schema)