List Clusters
emr.list_clusters
ActionAmazon Web Servicesconnection required
Calls the AWS emr API (SigV4).
List EMR clusters and their state.
Connection
- Required
- Yes — the node will not save without one
- Auth type
- API key
- Providers
- Amazon EMR
- Secret shape
- {"access_key_id", "secret_access_key"}
- Config it needs
- region
- Resolved by
- config.connection_id, else node.connection_id
Configuration
3 fields, none required. A dotted path is a nested object and name[] an array of objects — the editor renders the same tree.
| Field | Type | Required | Default | Constraints | Example |
|---|---|---|---|---|---|
region AWS region (overrides the connection). | string | No | — | — | — |
states e.g. ["RUNNING","WAITING"]. | array | No | — | array of string | — |
next_token Continues a previous run of this node, using that run's next_token output. | string | No | — | — | — |
Output
One shape.
result
| Field | Type | Example |
|---|---|---|
clusters | array | — |
clusters[].cluster_id Cluster id (j-…). | string | — |
clusters[].name Cluster name. | string | — |
clusters[].state STARTING, RUNNING, WAITING, TERMINATED, … | string | — |
clusters[].cluster_arn The cluster's ARN, for tagging and IAM. | string | — |
clusters[].outpost_arn ARN of the Outpost the cluster runs on, when it runs on one. | string | — |
clusters[].normalized_instance_hours Approximate instance hours the cluster has used, rounded up to the hour. | number | — |
count | number | — |
next_token Cursor for the next page; empty when there are no further pages. | string | — |
{
"clusters": [
{
"cluster_arn": "",
"cluster_id": "",
"name": "",
"normalized_instance_hours": 0,
"outpost_arn": "",
"state": ""
}
],
"count": 0,
"next_token": ""
}Related Amazon EMR nodes
See List Clusters run in a workflow.
In a technical demo we add the Amazon EMR connection, drop the node on the canvas and let Workflow Health pre-flight it before the first real run.