You can call this operation to query detailed information about node instances, including workflow and job running node instances.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Required DescribeFlowNodeInstance

The operation that you want to perform. For API requests using the HTTP or HTTPS URL, this parameter is required. Set the value to DescribeFlowNodeInstance.

Id String Required FNI-FE4BD156E939****

The ID of the job instance.

ProjectId String Required FP-7A1018ADE917****

The ID of the project.

RegionId String Required cn-hangzhou

The ID of the region where the streaming domain resides.

Response parameters

Parameter Type Sample response Description
Adhoc Boolean true

Indicates whether the job is a temporary query job.

ClusterId String C-F32FB31D8295****

The ID of the HPC cluster.

ClusterName String myCluster

The name of the cluster.

Duration Long 200

The running duration, in milliseconds.

EndTime Long 1540796248000

The time when the execution of the job instance ended.

EnvConf String {"key":"value"}

The environment variables configured for the job.

ExternalChildIds String application_1541559535023_34028

The task's application list.

ExternalId String application_1541559535023_34027

The initiator's application ID.

ExternalInfo String empty

External information. For example, the diagnostic information of a running job.

ExternalStatus String SUCCESS

The status of the Container corresponding to the instance:

  • FAIL
ExternalSubId String container_1541559535023_34027_01_000001

Launcher container ID.

FailAct String STOP

The action to take upon an operation failure of the node instance. Valid values:

  • STOP (terminates the workflow)
FlowId String F-35683D0E4573****

The ID of the workflow.

FlowInstanceId String FI-7CAF9709CD32****

The ID of the workflow instance.

GmtCreate Long 1540796236000

The creation time of the project.

GmtModified Long 1540796247000

The time when the workflow node instance was modified.

HostName String emr-header-1.cluster-12345

The name of the host on which the node instance runs. You can log in to the host to use hostname command to view hostname.

Id String FNI-9D14A7CCF268****

The ID of the workflow node instance.

JobId String FJ-A23BD131A862****

The ID of the job.

JobName String myJob

The name of the job.

JobParams String ls -l

The content of the job.

JobType String HIVE_SQL

The type of the job.

MaxRetry String 0

The maximum number of retries of running the node instance if a failure occurs.

Mode String Yarn

The model mode. Valid values: YARN and LOCAL YARN. YARN: submits the job from a worker node Run the job as a process on the host.

MonitorConf String {"inputs":[{"type":"KAFKA","clusterId":"C-1234567","topics":"kafka_topic","":"kafka_consumer_group"}],"outputs":[{"type":"KAFKA","clusterId":"C-1234567","topics":"kafka_topic"}]}

The monitoring configurations of the job. This parameter only applies to SPARK_STREAMING jobs.

NodeName String The name of the node

The name of the node.

ParamConf String {"date":"${yyyy-MM-dd}"}

The configuration parameters of the job.

Pending Boolean true

Indicates whether the execution of the node instance ended.

ProjectId String FP-7A1018ADE917****

The ID of the project.

RequestId String 1549175a-6d14-4c8a-89f9-5e28300f6d7e

The ID of the request.

Retries Integer 0

The number of retries of running the node instance.

RetryInterval String 15

Retry interval, in units S.

RetryPolicy String None.

The retry policy. A reserved parameter. You do not need to specify this parameter.

RunConf String {"priority":1,"userName":"hadoop","memory":2048,"cores":1}

The scheduling parameters configured for the job.

  • priority: the priority of the job.
  • userName: the name of the linux user who submitted the job.
  • memory: the memory allocated to the job. Unit: MB.
  • cores: the number of vCPUs allocated to the job.
StartTime Long 1540796237000

The time when the execution of the job instance started.

Status String OK

The execution status of the instance. Valid values:

  • PREP (pending start)
  • DONE
  • OK (executed successfully)
Type String JOB

The type of the node. Valid values:

  • JOB
  • END


Sample request

http(s)://[Endpoint]/? Action=DescribeFlowNodeInstance
&<Common request parameters>

Sample success response

XML format

        <cyctime>2018-11-22 19:00:00</cyctime>
    <JobParams>sleep 10;
exit 0;</JobParams>

JSON format

    "data": {
        "FailAct": "STOP",
        "EndTime": 1542884476000,
        "NodeName": "812589f5",
        "GmtModified": 1542884475000,
        "JobName": "success",
        "ExternalStatus": "SUCCESS",
        "FlowId": "F-60C9B1257A80****",
        "ParamConf": {
            "cyctime": "2018-11-22 19:00:00"
        "ExternalInfo": "",
        "Retries": 0,
        "ClusterName": "mingbo-v199v1-do not delete",
        "JobId": "FJ-EE3AF471B2E6****",
        "HostName": "emr-header-1.cluster-500159692",
        "JobParams": "sleep 10;\nexit 0;",
        "Status": "OK",
        "RequestId": "F5540D8F-06E8-4E3C-B47A-D75CED72A795",
        "ClusterId": "C-F32FB31D8295****",
        "ExternalId": "application_1541559535023_34027",
        "StartTime": 1542884402000,
        "ProjectId": "FP-3535FE0BE522****",
        "FlowInstanceId": "FI-C112BB938D2C****",
        "Duration": 74000,
        "ExternalSubId": "container_1541559535023_34027_01_000001",
        "MaxRetry": "0",
        "Type": "JOB",
        "GmtCreate": 1542884401000,
        "JobType": "SHELL",
        "RetryInterval": "15",
        "Id": "FNI-E548777B9DCD****",
        "Pending": false
    "requestId": "F5540D8F-06E8-4E3C-B47A-D75CED72A795"

Error codes.

For a list of error codes, visit the API Error Center.