OpenSearch/docs/en/rest-api/ml/get-snapshot.asciidoc

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//lcawley Verified example output 2017-04-11
[[ml-get-snapshot]]
==== Get Model Snapshots
The get model snapshots API enables you to retrieve information about model snapshots.
===== Request
`GET _xpack/ml/anomaly_detectors/<job_id>/model_snapshots` +
`GET _xpack/ml/anomaly_detectors/<job_id>/model_snapshots/<snapshot_id>`
//===== Description
===== Path Parameters
`job_id`::
(string) Identifier for the job.
`snapshot_id`::
(string) Identifier for the model snapshot. If you do not specify this
optional parameter, the API returns information about all model snapshots.
===== Request Body
`desc`::
(boolean) If true, the results are sorted in descending order.
`end`::
(date) Returns snapshots with timestamps earlier than this time.
`from`::
(integer) Skips the specified number of snapshots.
`size`::
(integer) Specifies the maximum number of snapshots to obtain.
`sort`::
(string) Specifies the sort field for the requested snapshots.
By default, the snapshots are sorted by their timestamp.
`start`::
(string) Returns snapshots with timestamps after this time.
===== Results
The API returns the following information:
`model_snapshots`::
(array) An array of model snapshot objects. For more information, see
<<ml-snapshot-resource,Model Snapshots>>.
===== Authorization
You must have `monitor_ml`, `monitor`, `manage_ml`, or `manage` cluster
privileges to use this API. For more information, see <<privileges-list-cluster>>.
===== Examples
The following example gets model snapshot information for the
`it_ops_new_logs` job:
[source,js]
--------------------------------------------------
GET _xpack/ml/anomaly_detectors/farequote/model_snapshots
{
"start": "1491852977000"
}
--------------------------------------------------
// CONSOLE
// TEST[skip:todo]
In this example, the API provides a single result:
[source,js]
----
{
"count": 1,
"model_snapshots": [
{
"job_id": "farequote",
"timestamp": 1491948163000,
"description": "State persisted due to job close at 2017-04-11T15:02:43-0700",
"snapshot_id": "1491948163",
"snapshot_doc_count": 1,
"model_size_stats": {
"job_id": "farequote",
"result_type": "model_size_stats",
"model_bytes": 387594,
"total_by_field_count": 21,
"total_over_field_count": 0,
"total_partition_field_count": 20,
"bucket_allocation_failures_count": 0,
"memory_status": "ok",
"log_time": 1491948163000,
"timestamp": 1455234600000
},
"latest_record_time_stamp": 1455235196000,
"latest_result_time_stamp": 1455234900000,
"retain": false
}
]
}
----