OpenSearch/docs/reference/transform/apis/get-transform-stats.asciidoc

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[role="xpack"]
[testenv="basic"]
[[get-data-frame-transform-stats]]
=== Get {transform} statistics API
[subs="attributes"]
++++
<titleabbrev>Get {transform} statistics</titleabbrev>
++++
Retrieves usage information for {transforms}.
beta[]
[[get-data-frame-transform-stats-request]]
==== {api-request-title}
`GET _data_frame/transforms/<transform_id>/_stats`
`GET _data_frame/transforms/<transform_id>,<transform_id>/_stats` +
`GET _data_frame/transforms/_stats` +
`GET _data_frame/transforms/_all/_stats` +
`GET _data_frame/transforms/*/_stats` +
[[get-data-frame-transform-stats-prereqs]]
==== {api-prereq-title}
* If the {es} {security-features} are enabled, you must have
`monitor_data_frame_transforms` cluster privileges to use this API. The built-in
`data_frame_transforms_user` role has these privileges. For more information,
see {stack-ov}/security-privileges.html[Security privileges] and
{stack-ov}/built-in-roles.html[Built-in roles].
[[get-data-frame-transform-stats-desc]]
==== {api-description-title}
You can get statistics for multiple {transforms} in a single API
request by using a comma-separated list of identifiers or a wildcard expression.
You can get statistics for all {transforms} by using `_all`, by
specifying `*` as the `<transform_id>`, or by omitting the
`<transform_id>`.
[[get-data-frame-transform-stats-path-parms]]
==== {api-path-parms-title}
`<transform_id>`::
(Optional, string) Identifier for the {transform}. It can be a
{transform} identifier or a wildcard expression. If you do not
specify one of these options, the API returns information for all
{transforms}.
[[get-data-frame-transform-stats-query-parms]]
==== {api-query-parms-title}
`allow_no_match`::
(Optional, boolean) Specifies what to do when the request:
+
--
* Contains wildcard expressions and there are no {transforms} that match.
* Contains the `_all` string or no identifiers and there are no matches.
* Contains wildcard expressions and there are only partial matches.
The default value is `true`, which returns an empty `transforms` array when
there are no matches and the subset of results when there are partial matches.
If this parameter is `false`, the request returns a `404` status code when there
are no matches or only partial matches.
--
`from`::
(Optional, integer) Skips the specified number of {transforms}. The
default value is `0`.
`size`::
(Optional, integer) Specifies the maximum number of {transforms} to obtain. The default value is `100`.
[[get-data-frame-transform-stats-response]]
==== {api-response-body-title}
`transforms`::
(array) An array of statistics objects for {transforms}, which are
sorted by the `id` value in ascending order.
[[get-data-frame-transform-stats-response-codes]]
==== {api-response-codes-title}
`404` (Missing resources)::
If `allow_no_match` is `false`, this code indicates that there are no
resources that match the request or only partial matches for the request.
[[get-data-frame-transform-stats-example]]
==== Examples
The following example skips for the first five {transforms} and
gets usage information for a maximum of ten results:
[source,console]
--------------------------------------------------
GET _data_frame/transforms/_stats?from=5&size=10
--------------------------------------------------
// TEST[skip:todo]
The following example gets usage information for the `ecommerce_transform`
{transform}:
[source,console]
--------------------------------------------------
GET _data_frame/transforms/ecommerce_transform/_stats
--------------------------------------------------
// TEST[skip:todo]
The API returns the following results:
[source,console-result]
----
{
"count" : 1,
"transforms" : [
{
"id" : "ecommerce_transform",
"state" : "indexing",
"stats" : {
"pages_processed" : 2,
"documents_processed" : 1220,
"documents_indexed" : 13,
"trigger_count" : 1,
"index_time_in_ms" : 19,
"index_total" : 1,
"index_failures" : 0,
"search_time_in_ms" : 52,
"search_total" : 2,
"search_failures" : 0,
"exponential_avg_checkpoint_duration_ms" : 77,
"exponential_avg_documents_indexed" : 2,
"exponential_avg_documents_processed" : 12
},
"checkpointing" : {
"last" : {
"checkpoint" : 100,
"timestamp_millis" : 1561740252497,
"time_upper_bound_millis" : 1561740192497
},
"next" : {
"checkpoint" : 101,
"position" : {
"indexer_position" : {
"hashtag" : "abcd1234"
},
"buckets_position" : {
"hashtag" : "abcd5678"
}
},
"checkpoint_progress" : {
"documents_processed": 100,
"documents_indexed": 1
},
"changes_last_detected_at": 1561740629170,
"timestamp_millis" : 1561740629172,
"time_upper_bound_millis" : 1561740569172
},
"operations_behind": 27000
}
}
]
}
----