POST
/#X-Amz-Target=ElasticMapReduce.ModifyInstanceGroups
http://elasticmapreduce.{region}.amazonaws.com/#X-Amz-Target=ElasticMapReduce.ModifyInstanceGroupsModifyInstanceGroups modifies the number of nodes and configuration settings of an instance group. The input parameters include the new target instance count for the group and the instance group ID. The call will either succeed or fail atomically.
Access Token Required: API Key
Responses
{
"success": true,
"data": {
"id": "abc123",
"created_at": "2025-01-01T00:00:00Z"
}
}{
"success": false,
"error": {
"code": "VALIDATION_ERROR",
"message": "Invalid request parameters"
}
}Language
CredentialsAPI KEY
API Key
Enter token below to save for later
cURL Request
1curl --request POST \2 --url 'http://elasticmapreduce.{region}.amazonaws.com/#X-Amz-Target=ElasticMapReduce.ModifyInstanceGroups' \3 --header 'accept: application/json' \4 --header 'content-type: application/json'Response
1{2 "success": true,3 "data": {4 "id": "abc123",5 "created_at": "2025-01-01T00:00:00Z"6 }7}