This API is used to modify parameter configurations.

You can debug this API in . Automatic authentication is supported.

POST /v1.0/{project_id}/clusters/{cluster_id}/ymls/update

**Table 1** Path parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details, see Obtaining a Project ID and Name.
cluster_id	Yes	String	ID of the cluster that you want to modify the parameter configurations

**Table 2** Request body parameter
Parameter	Mandatory	Type	Description
edit	Yes	UpdateYmlsReqEdit object	Configuration file information

**Table 3** UpdateYmlsReqEdit
Parameter	Mandatory	Type	Description
modify	Yes	UpdateYmlsReqEditModify object	Operations performed on parameter configurations. The value can be: modify delete reset

**Table 4** UpdateYmlsReqEditModify
Parameter	Mandatory	Type	Description
elasticsearch.yml	Yes	Object	Parameter configuration list. The value is the JSON data you want to modify.

Status code: 200

**Table 5** Response body parameter
Parameter	Type	Description
acknowledged	Boolean	Indicates whether the modification is successful. true: The modification is successful. false: The modification failed.
externalMessage	String	Error message. If acknowledged is set to true, null is returned for this field.
httpErrorResponse	String	HTTP error information. The default value is null.

{
  "edit" : {
    "modify" : {
      "elasticsearch.yml" : {
        "thread_pool.force_merge.size" : 1
      }
    }
  }
}

Status code: 200

The request is processed successfully.

{
  "acknowledged" : true,
  "externalMessage" : null,
  "httpErrorResponse" : null
}

Status Code	Description
200	The request is processed successfully.
400	Invalid request. Modify the request instead of retrying.
409	The request cannot be processed due to a conflict. This status code indicates that the resource that the client attempts to create already exists, or the request fails to be processed because of the update of the conflict request.
412	The server does not meet one of the requirements that the requester puts on the request.

Modifying Parameter Configurations