Get task information Technical preview

GET /_tasks/{task_id}
Api key auth

Get information about a task currently running in the cluster.

WARNING: The task management API is new and should still be considered a beta feature. The API may change in ways that are not backwards compatible.

If the task identifier is not found, a 404 response code indicates that there are no resources that match the request.

Path parameters

  • task_id string Required

    The task identifier.

Query parameters

  • timeout string

    The period to wait for a response. If no response is received before the timeout expires, the request fails and returns an error.

  • wait_for_completion boolean

    If true, the request blocks until the task has completed.

Responses

  • 200 application/json
    Hide response attributes Show response attributes object
    • completed boolean Required
    • task object Required
      Hide task attributes Show task attributes object
      • action string Required
      • cancelled boolean
      • cancellable boolean Required
      • description string

        Human readable text that identifies the particular request that the task is performing. For example, it might identify the search request being performed by a search task. Other kinds of tasks have different descriptions, like _reindex which has the source and the destination, or _bulk which just has the number of requests and the destination indices. Many requests will have only an empty description because more detailed information about the request is not easily available or particularly helpful in identifying the request.

      • headers object Required
        Hide headers attribute Show headers attribute object
        • * string Additional properties
      • id number Required
      • node string Required
      • running_time string

        A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.

      • running_time_in_nanos number

        Time unit for nanoseconds

      • start_time_in_millis number

        Time unit for milliseconds

      • status object

        The internal status of the task, which varies from task to task. The format also varies. While the goal is to keep the status for a particular task consistent from version to version, this is not always possible because sometimes the implementation changes. Fields might be removed from the status for a particular request so any parsing you do of the status might break in minor releases.

      • type string Required

      • parent_task_id string | number

        One of:
        _types:TaskId string _types:TaskId number
    • response object
    • error object
      Hide error attributes Show error attributes object
GET /_tasks/{task_id} 
curl \
 --request GET http://api.example.com/_tasks/{task_id} \
 --header "Authorization: $API_KEY"
Response examples (200)
A successful response from `GET _tasks?actions=cluster:*`, which retrieves all cluster-related tasks. 
{
  "nodes" : {
    "oTUltX4IQMOUUVeiohTt8A" : {
      "name" : "H5dfFeA",
      "transport_address" : "127.0.0.1:9300",
      "host" : "127.0.0.1",
      "ip" : "127.0.0.1:9300",
      "tasks" : {
        "oTUltX4IQMOUUVeiohTt8A:124" : {
          "node" : "oTUltX4IQMOUUVeiohTt8A",
          "id" : 124,
          "type" : "direct",
          "action" : "cluster:monitor/tasks/lists[n]",
          "start_time_in_millis" : 1458585884904,
          "running_time_in_nanos" : 47402,
          "cancellable" : false,
          "parent_task_id" : "oTUltX4IQMOUUVeiohTt8A:123"
        },
        "oTUltX4IQMOUUVeiohTt8A:123" : {
          "node" : "oTUltX4IQMOUUVeiohTt8A",
          "id" : 123,
          "type" : "transport",
          "action" : "cluster:monitor/tasks/lists",
          "start_time_in_millis" : 1458585884904,
          "running_time_in_nanos" : 236042,
          "cancellable" : false
        }
      }
    }
  }
}
A successful response from `GET _tasks?detailed=true&actions=*/delete/byquery`, which gets the status of a delete by query operation. The `status` object contains the actual status. `total` is the total number of operations that the reindex expects to perform. You can estimate the progress by adding the `updated`, `created`, and `deleted` fields. The request will finish when their sum is equal to the `total` field. 
{
  "nodes" : {
    "r1A2WoRbTwKZ516z6NEs5A" : {
      "name" : "r1A2WoR",
      "transport_address" : "127.0.0.1:9300",
      "host" : "127.0.0.1",
      "ip" : "127.0.0.1:9300",
      "attributes" : {
        "testattr" : "test",
        "portsfile" : "true"
      },
      "tasks" : {
        "r1A2WoRbTwKZ516z6NEs5A:36619" : {
          "node" : "r1A2WoRbTwKZ516z6NEs5A",
          "id" : 36619,
          "type" : "transport",
          "action" : "indices:data/write/delete/byquery",
          "status" : {    
            "total" : 6154,
            "updated" : 0,
            "created" : 0,
            "deleted" : 3500,
            "batches" : 36,
            "version_conflicts" : 0,
            "noops" : 0,
            "retries": 0,
            "throttled_millis": 0
          },
          "description" : ""
        }
      }
    }
  }
}