Elasticsearch API

Base URL 
http://api.example.com

Elasticsearch provides REST APIs that are used by the UI components and can be called directly to configure and access Elasticsearch features.

Documentation source and versions

This documentation is derived from the main branch of the elasticsearch-specification repository. It is provided under license Attribution-NonCommercial-NoDerivatives 4.0 International. This documentation contains work-in-progress information for future Elastic Stack releases.

Last update on Jun 13, 2025.

This API is provided under license Apache 2.0.

Get an autoscaling policy Generally available; Added in 7.11.0

GET /_autoscaling/policy/{name}
Api key auth Basic auth Bearer auth

NOTE: This feature is designed for indirect use by Elasticsearch Service, Elastic Cloud Enterprise, and Elastic Cloud on Kubernetes. Direct use is not supported.

External documentation

Path parameters

  • name string Required

    the name of the autoscaling policy

Query parameters

  • master_timeout string

    Period to wait for a connection to the master node. If no response is received before the timeout expires, the request fails and returns an error.

    Values are -1 or 0.

Responses

  • 200 application/json
    Hide response attributes Show response attributes object
GET /_autoscaling/policy/{name} 
GET /_autoscaling/policy/my_autoscaling_policy

resp = client.autoscaling.get_autoscaling_policy(
    name="my_autoscaling_policy",
)
const response = await client.autoscaling.getAutoscalingPolicy({
  name: "my_autoscaling_policy",
});
response = client.autoscaling.get_autoscaling_policy(
  name: "my_autoscaling_policy"
)
$resp = $client->autoscaling()->getAutoscalingPolicy([
    "name" => "my_autoscaling_policy",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_autoscaling/policy/my_autoscaling_policy"
Response examples (200)
This may be a response to `GET /_autoscaling/policy/my_autoscaling_policy`. 
{
   "roles": <roles>,
   "deciders": <deciders>
}

Create a behavioral analytics collection event Deprecated Technical preview

POST /_application/analytics/{collection_name}/event/{event_type}
Api key auth Basic auth Bearer auth
External documentation

Path parameters

  • collection_name string Required

    The name of the behavioral analytics collection.

  • event_type string Required

    The analytics event type.

    Values are page_view, search, or search_click.

Query parameters

  • debug boolean

    Whether the response type has to include more details

application/json

Body Required

object object

Responses

  • 200 application/json
    Hide response attributes Show response attributes object
POST /_application/analytics/{collection_name}/event/{event_type} 
POST _application/analytics/my_analytics_collection/event/search_click
{
  "session": {
    "id": "1797ca95-91c9-4e2e-b1bd-9c38e6f386a9"
  },
  "user": {
    "id": "5f26f01a-bbee-4202-9298-81261067abbd"
  },
  "search":{
    "query": "search term",
    "results": {
      "items": [
        {
          "document": {
            "id": "123",
            "index": "products"
          }
        }
      ],
      "total_results": 10
    },
    "sort": {
      "name": "relevance"
    },
    "search_application": "website"
  },
  "document":{
    "id": "123",
    "index": "products"
  }
}
resp = client.search_application.post_behavioral_analytics_event(
    collection_name="my_analytics_collection",
    event_type="search_click",
    payload={
        "session": {
            "id": "1797ca95-91c9-4e2e-b1bd-9c38e6f386a9"
        },
        "user": {
            "id": "5f26f01a-bbee-4202-9298-81261067abbd"
        },
        "search": {
            "query": "search term",
            "results": {
                "items": [
                    {
                        "document": {
                            "id": "123",
                            "index": "products"
                        }
                    }
                ],
                "total_results": 10
            },
            "sort": {
                "name": "relevance"
            },
            "search_application": "website"
        },
        "document": {
            "id": "123",
            "index": "products"
        }
    },
)
const response = await client.searchApplication.postBehavioralAnalyticsEvent({
  collection_name: "my_analytics_collection",
  event_type: "search_click",
  payload: {
    session: {
      id: "1797ca95-91c9-4e2e-b1bd-9c38e6f386a9",
    },
    user: {
      id: "5f26f01a-bbee-4202-9298-81261067abbd",
    },
    search: {
      query: "search term",
      results: {
        items: [
          {
            document: {
              id: "123",
              index: "products",
            },
          },
        ],
        total_results: 10,
      },
      sort: {
        name: "relevance",
      },
      search_application: "website",
    },
    document: {
      id: "123",
      index: "products",
    },
  },
});
response = client.search_application.post_behavioral_analytics_event(
  collection_name: "my_analytics_collection",
  event_type: "search_click",
  body: {
    "session": {
      "id": "1797ca95-91c9-4e2e-b1bd-9c38e6f386a9"
    },
    "user": {
      "id": "5f26f01a-bbee-4202-9298-81261067abbd"
    },
    "search": {
      "query": "search term",
      "results": {
        "items": [
          {
            "document": {
              "id": "123",
              "index": "products"
            }
          }
        ],
        "total_results": 10
      },
      "sort": {
        "name": "relevance"
      },
      "search_application": "website"
    },
    "document": {
      "id": "123",
      "index": "products"
    }
  }
)
$resp = $client->searchApplication()->postBehavioralAnalyticsEvent([
    "collection_name" => "my_analytics_collection",
    "event_type" => "search_click",
    "body" => [
        "session" => [
            "id" => "1797ca95-91c9-4e2e-b1bd-9c38e6f386a9",
        ],
        "user" => [
            "id" => "5f26f01a-bbee-4202-9298-81261067abbd",
        ],
        "search" => [
            "query" => "search term",
            "results" => [
                "items" => array(
                    [
                        "document" => [
                            "id" => "123",
                            "index" => "products",
                        ],
                    ],
                ),
                "total_results" => 10,
            ],
            "sort" => [
                "name" => "relevance",
            ],
            "search_application" => "website",
        ],
        "document" => [
            "id" => "123",
            "index" => "products",
        ],
    ],
]);
curl -X POST -H "Authorization: ApiKey $ELASTIC_API_KEY" -H "Content-Type: application/json" -d '{"session":{"id":"1797ca95-91c9-4e2e-b1bd-9c38e6f386a9"},"user":{"id":"5f26f01a-bbee-4202-9298-81261067abbd"},"search":{"query":"search term","results":{"items":[{"document":{"id":"123","index":"products"}}],"total_results":10},"sort":{"name":"relevance"},"search_application":"website"},"document":{"id":"123","index":"products"}}' "$ELASTICSEARCH_URL/_application/analytics/my_analytics_collection/event/search_click"
Request example
Run `POST _application/analytics/my_analytics_collection/event/search_click` to send a `search_click` event to an analytics collection called `my_analytics_collection`. 
{
  "session": {
    "id": "1797ca95-91c9-4e2e-b1bd-9c38e6f386a9"
  },
  "user": {
    "id": "5f26f01a-bbee-4202-9298-81261067abbd"
  },
  "search":{
    "query": "search term",
    "results": {
      "items": [
        {
          "document": {
            "id": "123",
            "index": "products"
          }
        }
      ],
      "total_results": 10
    },
    "sort": {
      "name": "relevance"
    },
    "search_application": "website"
  },
  "document":{
    "id": "123",
    "index": "products"
  }
}

Get aliases Generally available

GET /_cat/aliases/{name}
Api key auth Basic auth Bearer auth

Get the cluster's index aliases, including filter and routing information. This API does not return data stream aliases.

IMPORTANT: CAT APIs are only intended for human consumption using the command line or the Kibana console. They are not intended for use by applications. For application consumption, use the aliases API.

Required authorization

  • Index privileges: view_index_metadata

Path parameters

  • name string | array[string] Required

    A comma-separated list of aliases to retrieve. Supports wildcards (*). To retrieve all aliases, omit this parameter or use * or _all.

Query parameters

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

  • expand_wildcards string | array[string]

    The type of index that wildcard patterns can match. If the request can target data streams, this argument determines whether wildcard expressions match hidden data streams. It supports comma-separated values, such as open,hidden.

    Values are all, open, closed, hidden, or none.

  • master_timeout string

    The period to wait for a connection to the master node. If the master node is not available before the timeout expires, the request fails and returns an error. To indicated that the request should never timeout, you can set it to -1.

    Values are -1 or 0.

Responses

GET /_cat/aliases/{name} 
GET _cat/aliases?format=json&v=true

resp = client.cat.aliases(
    format="json",
    v=True,
)
const response = await client.cat.aliases({
  format: "json",
  v: "true",
});
response = client.cat.aliases(
  format: "json",
  v: "true"
)
$resp = $client->cat()->aliases([
    "format" => "json",
    "v" => "true",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/aliases?format=json&v=true"
Response examples (200)
A successful response from `GET _cat/aliases?format=json&v=true`. This response shows that `alias2` has configured a filter and `alias3` and `alias4` have routing configurations. 
[
  {
    "alias": "alias1",
    "index": "test1",
    "filter": "-",
    "routing.index": "-",
    "routing.search": "-",
    "is_write_index": "true"
  },
  {
    "alias": "alias1",
    "index": "test1",
    "filter": "*",
    "routing.index": "-",
    "routing.search": "-",
    "is_write_index": "true"
  },
  {
    "alias": "alias3",
    "index": "test1",
    "filter": "-",
    "routing.index": "1",
    "routing.search": "1",
    "is_write_index": "true"
  },
  {
    "alias": "alias4",
    "index": "test1",
    "filter": "-",
    "routing.index": "2",
    "routing.search": "1,2",
    "is_write_index": "true"
  }
]

Get shard allocation information Generally available

GET /_cat/allocation/{node_id}
Api key auth Basic auth Bearer auth

Get a snapshot of the number of shards allocated to each data node and their disk space.

IMPORTANT: CAT APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications.

Required authorization

  • Cluster privileges: monitor

Path parameters

  • node_id string | array[string] Required

    A comma-separated list of node identifiers or names used to limit the returned information.

Query parameters

  • bytes string

    The unit used to display byte values.

    Values are b, kb, mb, gb, tb, or pb.

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

  • local boolean

    If true, the request computes the list of selected nodes from the local cluster state. If false the list of selected nodes are computed from the cluster state of the master node. In both cases the coordinating node will send requests for further information to each selected node.

  • master_timeout string

    Period to wait for a connection to the master node.

    Values are -1 or 0.

Responses

GET /_cat/allocation/{node_id} 
GET /_cat/allocation?v=true&format=json

resp = client.cat.allocation(
    v=True,
    format="json",
)
const response = await client.cat.allocation({
  v: "true",
  format: "json",
});
response = client.cat.allocation(
  v: "true",
  format: "json"
)
$resp = $client->cat()->allocation([
    "v" => "true",
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/allocation?v=true&format=json"
Response examples (200)
A successful response from `GET /_cat/allocation?v=true&format=json`. It shows a single shard is allocated to the one node available. 
[
  {
    "shards": "1",
    "shards.undesired": "0",
    "write_load.forecast": "0.0",
    "disk.indices.forecast": "260b",
    "disk.indices": "260b",
    "disk.used": "47.3gb",
    "disk.avail": "43.4gb",
    "disk.total": "100.7gb",
    "disk.percent": "46",
    "host": "127.0.0.1",
    "ip": "127.0.0.1",
    "node": "CSUXak2",
    "node.role": "himrst"
  }
]

Get a document count Generally available

GET /_cat/count/{index}
Api key auth Basic auth Bearer auth

Get quick access to a document count for a data stream, an index, or an entire cluster. The document count only includes live documents, not deleted documents which have not yet been removed by the merge process.

IMPORTANT: CAT APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications. For application consumption, use the count API.

Required authorization

  • Index privileges: read

Path parameters

  • index string | array[string] Required

    A comma-separated list of data streams, indices, and aliases used to limit the request. It supports wildcards (*). To target all data streams and indices, omit this parameter or use * or _all.

Query parameters

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

Responses

  • 200 application/json
    Hide response attributes Show response attributes object

    • epoch number | string

      Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.

      Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.

      One of:
      UnitSeconds number StringifiedEpochTimeUnitSeconds string

      Time unit for seconds

    • timestamp string

      Time of day, expressed as HH:MM:SS

    • count string

      the document count
GET /_cat/count/{index} 
GET /_cat/count/my-index-000001?v=true&format=json

resp = client.cat.count(
    index="my-index-000001",
    v=True,
    format="json",
)
const response = await client.cat.count({
  index: "my-index-000001",
  v: "true",
  format: "json",
});
response = client.cat.count(
  index: "my-index-000001",
  v: "true",
  format: "json"
)
$resp = $client->cat()->count([
    "index" => "my-index-000001",
    "v" => "true",
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/count/my-index-000001?v=true&format=json"
Response examples (200)
A successful response from `GET /_cat/count/my-index-000001?v=true&format=json`. It retrieves the document count for the `my-index-000001` data stream or index. 
[
  {
    "epoch": "1475868259",
    "timestamp": "15:24:20",
    "count": "120"
  }
]
A successful response from `GET /_cat/count?v=true&format=json`. It retrieves the document count for all data streams and indices in the cluster. 
[
  {
    "epoch": "1475868259",
    "timestamp": "15:24:20",
    "count": "121"
  }
]

Get index information Generally available

GET /_cat/indices/{index}
Api key auth Basic auth Bearer auth

Get high-level information about indices in a cluster, including backing indices for data streams.

Use this request to get the following information for each index in a cluster:

  • shard count
  • document count
  • deleted document count
  • primary store size
  • total store size of all shards, including shard replicas

These metrics are retrieved directly from Lucene, which Elasticsearch uses internally to power indexing and search. As a result, all document counts include hidden nested documents. To get an accurate count of Elasticsearch documents, use the cat count or count APIs.

CAT APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications. For application consumption, use an index endpoint.

Required authorization

  • Index privileges: monitor
  • Cluster privileges: monitor

Path parameters

  • index string | array[string] Required

    Comma-separated list of data streams, indices, and aliases used to limit the request. Supports wildcards (*). To target all data streams and indices, omit this parameter or use * or _all.

Query parameters

  • bytes string

    The unit used to display byte values.

    Values are b, kb, mb, gb, tb, or pb.

  • expand_wildcards string | array[string]

    The type of index that wildcard patterns can match.

    Values are all, open, closed, hidden, or none.

  • health string

    The health status used to limit returned indices. By default, the response includes indices of any health status.

    Values are green, GREEN, yellow, YELLOW, red, or RED.

  • include_unloaded_segments boolean

    If true, the response includes information from segments that are not loaded into memory.

  • pri boolean

    If true, the response only includes information from primary shards.

  • time string

    The unit used to display time values.

    Values are nanos, micros, ms, s, m, h, or d.

  • master_timeout string

    Period to wait for a connection to the master node.

    Values are -1 or 0.

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

Responses

GET /_cat/indices/{index} 
GET /_cat/indices/my-index-*?v=true&s=index&format=json

resp = client.cat.indices(
    index="my-index-*",
    v=True,
    s="index",
    format="json",
)
const response = await client.cat.indices({
  index: "my-index-*",
  v: "true",
  s: "index",
  format: "json",
});
response = client.cat.indices(
  index: "my-index-*",
  v: "true",
  s: "index",
  format: "json"
)
$resp = $client->cat()->indices([
    "index" => "my-index-*",
    "v" => "true",
    "s" => "index",
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/indices/my-index-*?v=true&s=index&format=json"
Response examples (200)
A successful response from `GET /_cat/indices/my-index-*?v=true&s=index&format=json`. 
[
  {
    "health": "yellow",
    "status": "open",
    "index": "my-index-000001",
    "uuid": "u8FNjxh8Rfy_awN11oDKYQ",
    "pri": "1",
    "rep": "1",
    "docs.count": "1200",
    "docs.deleted": "0",
    "store.size": "88.1kb",
    "pri.store.size": "88.1kb",
    "dataset.size": "88.1kb"
  },
  {
    "health": "green",
    "status": "open",
    "index": "my-index-000002",
    "uuid": "nYFWZEO7TUiOjLQXBaYJpA ",
    "pri": "1",
    "rep": "0",
    "docs.count": "0",
    "docs.deleted": "0",
    "store.size": "260b",
    "pri.store.size": "260b",
    "dataset.size": "260b"
  }
]

Get anomaly detection jobs Generally available; Added in 7.7.0

GET /_cat/ml/anomaly_detectors
Api key auth Basic auth Bearer auth

Get configuration and usage information for anomaly detection jobs. This API returns a maximum of 10,000 jobs. If the Elasticsearch security features are enabled, you must have monitor_ml, monitor, manage_ml, or manage cluster privileges to use this API.

IMPORTANT: CAT APIs are only intended for human consumption using the Kibana console or command line. They are not intended for use by applications. For application consumption, use the get anomaly detection job statistics API.

Required authorization

  • Cluster privileges: monitor_ml

Query parameters

  • allow_no_match boolean

    Specifies what to do when the request:

    • Contains wildcard expressions and there are no jobs that match.
    • Contains the _all string or no identifiers and there are no matches.
    • Contains wildcard expressions and there are only partial matches.

    If true, the API returns an empty jobs array when there are no matches and the subset of results when there are partial matches. If false, the API returns a 404 status code when there are no matches or only partial matches.

  • bytes string

    The unit used to display byte values.

    Values are b, kb, mb, gb, tb, or pb.

  • h string | array[string]

    Comma-separated list of column names to display.

  • s string | array[string]

    Comma-separated list of column names or column aliases used to sort the response.

  • time string

    The unit used to display time values.

    Values are nanos, micros, ms, s, m, h, or d.

Responses

  • 200 application/json
    Hide response attributes Show response attributes object
    • id string
    • state string

      Values are closing, closed, opened, failed, or opening.

    • opened_time string

      For open jobs only, the amount of time the job has been opened.

    • assignment_explanation string

      For open anomaly detection jobs only, contains messages relating to the selection of a node to run the job.

    • data.processed_records string

      The number of input documents that have been processed by the anomaly detection job. This value includes documents with missing fields, since they are nonetheless analyzed. If you use datafeeds and have aggregations in your search query, the processed_record_count is the number of aggregation results processed, not the number of Elasticsearch documents.

    • data.processed_fields string

      The total number of fields in all the documents that have been processed by the anomaly detection job. Only fields that are specified in the detector configuration object contribute to this count. The timestamp is not included in this count.

    • data.input_bytes number | string

      One of:
      ByteSize number ByteSize string
    • data.input_records string

      The number of input documents posted to the anomaly detection job.

    • data.input_fields string

      The total number of fields in input documents posted to the anomaly detection job. This count includes fields that are not used in the analysis. However, be aware that if you are using a datafeed, it extracts only the required fields from the documents it retrieves before posting them to the job.

    • data.invalid_dates string

      The number of input documents with either a missing date field or a date that could not be parsed.

    • data.missing_fields string

      The number of input documents that are missing a field that the anomaly detection job is configured to analyze. Input documents with missing fields are still processed because it is possible that not all fields are missing. If you are using datafeeds or posting data to the job in JSON format, a high missing_field_count is often not an indication of data issues. It is not necessarily a cause for concern.

    • data.out_of_order_timestamps string

      The number of input documents that have a timestamp chronologically preceding the start of the current anomaly detection bucket offset by the latency window. This information is applicable only when you provide data to the anomaly detection job by using the post data API. These out of order documents are discarded, since jobs require time series data to be in ascending chronological order.

    • data.empty_buckets string

      The number of buckets which did not contain any data. If your data contains many empty buckets, consider increasing your bucket_span or using functions that are tolerant to gaps in data such as mean, non_null_sum or non_zero_count.

    • data.sparse_buckets string

      The number of buckets that contained few data points compared to the expected number of data points. If your data contains many sparse buckets, consider using a longer bucket_span.

    • data.buckets string

      The total number of buckets processed.

    • data.earliest_record string

      The timestamp of the earliest chronologically input document.

    • data.latest_record string

      The timestamp of the latest chronologically input document.

    • data.last string

      The timestamp at which data was last analyzed, according to server time.

    • data.last_empty_bucket string

      The timestamp of the last bucket that did not contain any data.

    • data.last_sparse_bucket string

      The timestamp of the last bucket that was considered sparse.

    • model.bytes number | string

      One of:
      ByteSize number ByteSize string
    • model.memory_status string

      Values are ok, soft_limit, or hard_limit.

    • model.bytes_exceeded number | string

      One of:
      ByteSize number ByteSize string
    • model.memory_limit string

      The upper limit for model memory usage, checked on increasing values.

    • model.by_fields string

      The number of by field values that were analyzed by the models. This value is cumulative for all detectors in the job.

    • model.over_fields string

      The number of over field values that were analyzed by the models. This value is cumulative for all detectors in the job.

    • model.partition_fields string

      The number of partition field values that were analyzed by the models. This value is cumulative for all detectors in the job.

    • model.bucket_allocation_failures string

      The number of buckets for which new entities in incoming data were not processed due to insufficient model memory. This situation is also signified by a hard_limit: memory_status property value.

    • model.categorization_status string

      Values are ok or warn.

    • model.categorized_doc_count string

      The number of documents that have had a field categorized.

    • model.total_category_count string

      The number of categories created by categorization.

    • model.frequent_category_count string

      The number of categories that match more than 1% of categorized documents.

    • model.rare_category_count string

      The number of categories that match just one categorized document.

    • model.dead_category_count string

      The number of categories created by categorization that will never be assigned again because another category’s definition makes it a superset of the dead category. Dead categories are a side effect of the way categorization has no prior training.

    • model.failed_category_count string

      The number of times that categorization wanted to create a new category but couldn’t because the job had hit its model_memory_limit. This count does not track which specific categories failed to be created. Therefore you cannot use this value to determine the number of unique categories that were missed.

    • model.log_time string

      The timestamp when the model stats were gathered, according to server time.

    • model.timestamp string

      The timestamp of the last record when the model stats were gathered.

    • forecasts.total string

      The number of individual forecasts currently available for the job. A value of one or more indicates that forecasts exist.

    • forecasts.memory.min string

      The minimum memory usage in bytes for forecasts related to the anomaly detection job.

    • forecasts.memory.max string

      The maximum memory usage in bytes for forecasts related to the anomaly detection job.

    • forecasts.memory.avg string

      The average memory usage in bytes for forecasts related to the anomaly detection job.

    • forecasts.memory.total string

      The total memory usage in bytes for forecasts related to the anomaly detection job.

    • forecasts.records.min string

      The minimum number of model_forecast documents written for forecasts related to the anomaly detection job.

    • forecasts.records.max string

      The maximum number of model_forecast documents written for forecasts related to the anomaly detection job.

    • forecasts.records.avg string

      The average number of model_forecast documents written for forecasts related to the anomaly detection job.

    • forecasts.records.total string

      The total number of model_forecast documents written for forecasts related to the anomaly detection job.

    • forecasts.time.min string

      The minimum runtime in milliseconds for forecasts related to the anomaly detection job.

    • forecasts.time.max string

      The maximum runtime in milliseconds for forecasts related to the anomaly detection job.

    • forecasts.time.avg string

      The average runtime in milliseconds for forecasts related to the anomaly detection job.

    • forecasts.time.total string

      The total runtime in milliseconds for forecasts related to the anomaly detection job.

    • node.id string
    • node.name string

      The name of the assigned node.

    • node.ephemeral_id string
    • node.address string

      The network address of the assigned node.

    • buckets.count string

      The number of bucket results produced by the job.

    • buckets.time.total string

      The sum of all bucket processing times, in milliseconds.

    • buckets.time.min string

      The minimum of all bucket processing times, in milliseconds.

    • buckets.time.max string

      The maximum of all bucket processing times, in milliseconds.

    • buckets.time.exp_avg string

      The exponential moving average of all bucket processing times, in milliseconds.

    • buckets.time.exp_avg_hour string

      The exponential moving average of bucket processing times calculated in a one hour time window, in milliseconds.
GET /_cat/ml/anomaly_detectors 
GET _cat/ml/anomaly_detectors?h=id,s,dpr,mb&v=true&format=json

resp = client.cat.ml_jobs(
    h="id,s,dpr,mb",
    v=True,
    format="json",
)
const response = await client.cat.mlJobs({
  h: "id,s,dpr,mb",
  v: "true",
  format: "json",
});
response = client.cat.ml_jobs(
  h: "id,s,dpr,mb",
  v: "true",
  format: "json"
)
$resp = $client->cat()->mlJobs([
    "h" => "id,s,dpr,mb",
    "v" => "true",
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/ml/anomaly_detectors?h=id,s,dpr,mb&v=true&format=json"
Response examples (200)
A successful response from `GET _cat/ml/anomaly_detectors?h=id,s,dpr,mb&v=true&format=json`. 
[
  {
    "id": "high_sum_total_sales",
    "s": "closed",
    "dpr": "14022",
    "mb": "1.5mb"
  },
  {
    "id": "low_request_rate",
    "s": "closed",
    "dpr": "1216",
    "mb": "40.5kb"
  },
  {
    "id": "response_code_rates",
    "s": "closed",
    "dpr": "28146",
    "mb": "132.7kb"
  },
  {
    "id": "url_scanning",
    "s": "closed",
    "dpr": "28146",
    "mb": "501.6kb"
  }
]

Get shard recovery information Generally available

GET /_cat/recovery
Api key auth Basic auth Bearer auth

Get information about ongoing and completed shard recoveries. Shard recovery is the process of initializing a shard copy, such as restoring a primary shard from a snapshot or syncing a replica shard from a primary shard. When a shard recovery completes, the recovered shard is available for search and indexing. For data streams, the API returns information about the stream’s backing indices. IMPORTANT: cat APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications. For application consumption, use the index recovery API.

Required authorization

  • Index privileges: monitor
  • Cluster privileges: monitor

Query parameters

  • active_only boolean

    If true, the response only includes ongoing shard recoveries.

  • bytes string

    The unit used to display byte values.

    Values are b, kb, mb, gb, tb, or pb.

  • detailed boolean

    If true, the response includes detailed information about shard recoveries.

  • index string | array[string]

    Comma-separated list or wildcard expression of index names to limit the returned information

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

  • time string

    Unit used to display time values.

    Values are nanos, micros, ms, s, m, h, or d.

Responses

GET /_cat/recovery 
GET _cat/recovery?v=true&format=json

resp = client.cat.recovery(
    v=True,
    format="json",
)
const response = await client.cat.recovery({
  v: "true",
  format: "json",
});
response = client.cat.recovery(
  v: "true",
  format: "json"
)
$resp = $client->cat()->recovery([
    "v" => "true",
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/recovery?v=true&format=json"
Response examples (200)
A successful response from `GET _cat/recovery?v=true&format=json`. In this example, the source and target nodes are the same because the recovery type is `store`, meaning they were read from local storage on node start. 
[
  {
    "index": "my-index-000001 ",
    "shard": "0",
    "time": "13ms",
    "type": "store",
    "stage": "done",
    "source_host": "n/a",
    "source_node": "n/a",
    "target_host": "127.0.0.1",
    "target_node": "node-0",
    "repository": "n/a",
    "snapshot": "n/a",
    "files": "0",
    "files_recovered": "0",
    "files_percent": "100.0%",
    "files_total": "13",
    "bytes": "0b",
    "bytes_recovered": "0b",
    "bytes_percent": "100.0%",
    "bytes_total": "9928b",
    "translog_ops": "0",
    "translog_ops_recovered": "0",
    "translog_ops_percent": "100.0%"
  }
]
A successful response from `GET _cat/recovery?v=true&h=i,s,t,ty,st,shost,thost,f,fp,b,bp&format=json`. You can retrieve information about an ongoing recovery for example when you increase the replica count of an index and bring another node online to host the replicas. In this example, the recovery type is `peer`, meaning the shard recovered from another node. The `files` and `bytes` are real-time measurements. 
[
  {
    "i": "my-index-000001",
    "s": "0",
    "t": "1252ms",
    "ty": "peer",
    "st": "done",
    "shost": "192.168.1.1",
    "thost": "192.168.1.1",
    "f": "0",
    "fp": "100.0%",
    "b": "0b",
    "bp": "100.0%",
  }
]
A successful response from `GET _cat/recovery?v=true&h=i,s,t,ty,st,rep,snap,f,fp,b,bp&format=json`. You can restore backups of an index using the snapshot and restore API. You can use the cat recovery API to get information about a snapshot recovery. 
[
  {
    "i": "my-index-000001",
    "s": "0",
    "t": "1978ms",
    "ty": "snapshot",
    "st": "done",
    "rep": "my-repo",
    "snap": "snap-1",
    "f": "79",
    "fp": "8.0%",
    "b": "12086",
    "bp": "9.0%"
  }
]

Get segment information Generally available

GET /_cat/segments/{index}
Api key auth Basic auth Bearer auth

Get low-level information about the Lucene segments in index shards. For data streams, the API returns information about the backing indices. IMPORTANT: cat APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications. For application consumption, use the index segments API.

Required authorization

  • Index privileges: monitor
  • Cluster privileges: monitor

Path parameters

  • index string | array[string] Required

    A comma-separated list of data streams, indices, and aliases used to limit the request. Supports wildcards (*). To target all data streams and indices, omit this parameter or use * or _all.

Query parameters

  • bytes string

    The unit used to display byte values.

    Values are b, kb, mb, gb, tb, or pb.

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

  • local boolean

    If true, the request computes the list of selected nodes from the local cluster state. If false the list of selected nodes are computed from the cluster state of the master node. In both cases the coordinating node will send requests for further information to each selected node.

  • master_timeout string

    Period to wait for a connection to the master node.

    Values are -1 or 0.

Responses

  • 200 application/json
    Hide response attributes Show response attributes object
    • index string
    • shard string

      The shard name.

    • prirep string

      The shard type: primary or replica.

    • ip string

      The IP address of the node where it lives.

    • id string
    • segment string

      The segment name, which is derived from the segment generation and used internally to create file names in the directory of the shard.

    • generation string

      The segment generation number. Elasticsearch increments this generation number for each segment written then uses this number to derive the segment name.

    • docs.count string

      The number of documents in the segment. This excludes deleted documents and counts any nested documents separately from their parents. It also excludes documents which were indexed recently and do not yet belong to a segment.

    • docs.deleted string

      The number of deleted documents in the segment, which might be higher or lower than the number of delete operations you have performed. This number excludes deletes that were performed recently and do not yet belong to a segment. Deleted documents are cleaned up by the automatic merge process if it makes sense to do so. Also, Elasticsearch creates extra deleted documents to internally track the recent history of operations on a shard.

    • size number | string

      One of:
      ByteSize number ByteSize string

    • size.memory number | string

      One of:
      ByteSize number ByteSize string
    • committed string

      If true, the segment is synced to disk. Segments that are synced can survive a hard reboot. If false, the data from uncommitted segments is also stored in the transaction log so that Elasticsearch is able to replay changes on the next start.

    • searchable string

      If true, the segment is searchable. If false, the segment has most likely been written to disk but needs a refresh to be searchable.

    • version string
    • compound string

      If true, the segment is stored in a compound file. This means Lucene merged all files from the segment in a single file to save file descriptors.
GET /_cat/segments/{index} 
GET /_cat/segments?v=true&format=json

resp = client.cat.segments(
    v=True,
    format="json",
)
const response = await client.cat.segments({
  v: "true",
  format: "json",
});
response = client.cat.segments(
  v: "true",
  format: "json"
)
$resp = $client->cat()->segments([
    "v" => "true",
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/segments?v=true&format=json"
Response examples (200)
A successful response from `GET /_cat/segments?v=true&format=json`. 
[
  {
    "index": "test",
    "shard": "0",
    "prirep": "p",
    "ip": "127.0.0.1",
    "segment": "_0",
    "generation": "0",
    "docs.count": "1",
    "docs.deleted": "0",
    "size": "3kb",
    "size.memory": "0",
    "committed": "false",
    "searchable": "true",
    "version": "9.12.0",
    "compound": "true"
  },
  {
    "index": "test1",
    "shard": "0",
    "prirep": "p",
    "ip": "127.0.0.1",
    "segment": "_0",
    "generation": "0",
    "docs.count": "1",
    "docs.deleted": "0",
    "size": "3kb",
    "size.memory": "0",
    "committed": "false",
    "searchable": "true",
    "version": "9.12.0",
    "compound": "true"
  }
]

Get shard information Generally available

GET /_cat/shards
Api key auth Basic auth Bearer auth

Get information about the shards in a cluster. For data streams, the API returns information about the backing indices. IMPORTANT: cat APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications.

Required authorization

  • Index privileges: monitor
  • Cluster privileges: monitor

Query parameters

  • bytes string

    The unit used to display byte values.

    Values are b, kb, mb, gb, tb, or pb.

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

  • master_timeout string

    Period to wait for a connection to the master node.

    Values are -1 or 0.

  • time string

    Unit used to display time values.

    Values are nanos, micros, ms, s, m, h, or d.

Responses

GET /_cat/shards 
GET _cat/shards?format=json

resp = client.cat.shards(
    format="json",
)
const response = await client.cat.shards({
  format: "json",
});
response = client.cat.shards(
  format: "json"
)
$resp = $client->cat()->shards([
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/shards?format=json"
Response examples (200)
A successful response from `GET _cat/shards?format=json`. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "STARTED",
    "docs": "3014",
    "store": "31.1mb",
    "dataset": "249b",
    "ip": "192.168.56.10",
    "node": "H5dfFeA"
  }
]
A successful response from `GET _cat/shards/my-index-*?format=json`. It returns information for any data streams or indices beginning with `my-index-`. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "STARTED",
    "docs": "3014",
    "store": "31.1mb",
    "dataset": "249b",
    "ip": "192.168.56.10",
    "node": "H5dfFeA"
  }
]
A successful response from `GET _cat/shards?format=json`. The `RELOCATING` value in the `state` column indicates the index shard is relocating. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "RELOCATING",
    "docs": "3014",
    "store": "31.1mb",
    "dataset": "249b",
    "ip": "192.168.56.10",
    "node": "H5dfFeA -> -> 192.168.56.30 bGG90GE"
  }
]
A successful response from `GET _cat/shards?format=json`. Before a shard is available for use, it goes through an `INITIALIZING` state. You can use the cat shards API to see which shards are initializing. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "STARTED",
    "docs": "3014",
    "store": "31.1mb",
    "dataset": "249b",
    "ip": "192.168.56.10",
    "node": "H5dfFeA"
  },
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "r",
    "state": "INITIALIZING",
    "docs": "0",
    "store": "14.3mb",
    "dataset": "249b",
    "ip": "192.168.56.30",
    "node": "bGG90GE"
  }
]
A successful response from `GET _cat/shards?h=index,shard,prirep,state,unassigned.reason&format=json`. It includes the `unassigned.reason` column, which indicates why a shard is unassigned. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "STARTED",
    "unassigned.reason": "3014 31.1mb 192.168.56.10 H5dfFeA"
  },
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "r",
    "state": "STARTED",
    "unassigned.reason": "3014 31.1mb 192.168.56.30 bGG90GE"
  },
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "r",
    "state": "STARTED",
    "unassigned.reason": "3014 31.1mb 192.168.56.20 I8hydUG"
  },
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "r",
    "state": "UNASSIGNED",
    "unassigned.reason": "ALLOCATION_FAILED"
  }
]

Get shard information Generally available

GET /_cat/shards/{index}
Api key auth Basic auth Bearer auth

Get information about the shards in a cluster. For data streams, the API returns information about the backing indices. IMPORTANT: cat APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications.

Required authorization

  • Index privileges: monitor
  • Cluster privileges: monitor

Path parameters

  • index string | array[string] Required

    A comma-separated list of data streams, indices, and aliases used to limit the request. Supports wildcards (*). To target all data streams and indices, omit this parameter or use * or _all.

Query parameters

  • bytes string

    The unit used to display byte values.

    Values are b, kb, mb, gb, tb, or pb.

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

  • master_timeout string

    Period to wait for a connection to the master node.

    Values are -1 or 0.

  • time string

    Unit used to display time values.

    Values are nanos, micros, ms, s, m, h, or d.

Responses

GET /_cat/shards/{index} 
GET _cat/shards?format=json

resp = client.cat.shards(
    format="json",
)
const response = await client.cat.shards({
  format: "json",
});
response = client.cat.shards(
  format: "json"
)
$resp = $client->cat()->shards([
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/shards?format=json"
Response examples (200)
A successful response from `GET _cat/shards?format=json`. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "STARTED",
    "docs": "3014",
    "store": "31.1mb",
    "dataset": "249b",
    "ip": "192.168.56.10",
    "node": "H5dfFeA"
  }
]
A successful response from `GET _cat/shards/my-index-*?format=json`. It returns information for any data streams or indices beginning with `my-index-`. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "STARTED",
    "docs": "3014",
    "store": "31.1mb",
    "dataset": "249b",
    "ip": "192.168.56.10",
    "node": "H5dfFeA"
  }
]
A successful response from `GET _cat/shards?format=json`. The `RELOCATING` value in the `state` column indicates the index shard is relocating. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "RELOCATING",
    "docs": "3014",
    "store": "31.1mb",
    "dataset": "249b",
    "ip": "192.168.56.10",
    "node": "H5dfFeA -> -> 192.168.56.30 bGG90GE"
  }
]
A successful response from `GET _cat/shards?format=json`. Before a shard is available for use, it goes through an `INITIALIZING` state. You can use the cat shards API to see which shards are initializing. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "STARTED",
    "docs": "3014",
    "store": "31.1mb",
    "dataset": "249b",
    "ip": "192.168.56.10",
    "node": "H5dfFeA"
  },
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "r",
    "state": "INITIALIZING",
    "docs": "0",
    "store": "14.3mb",
    "dataset": "249b",
    "ip": "192.168.56.30",
    "node": "bGG90GE"
  }
]
A successful response from `GET _cat/shards?h=index,shard,prirep,state,unassigned.reason&format=json`. It includes the `unassigned.reason` column, which indicates why a shard is unassigned. 
[
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "p",
    "state": "STARTED",
    "unassigned.reason": "3014 31.1mb 192.168.56.10 H5dfFeA"
  },
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "r",
    "state": "STARTED",
    "unassigned.reason": "3014 31.1mb 192.168.56.30 bGG90GE"
  },
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "r",
    "state": "STARTED",
    "unassigned.reason": "3014 31.1mb 192.168.56.20 I8hydUG"
  },
  {
    "index": "my-index-000001",
    "shard": "0",
    "prirep": "r",
    "state": "UNASSIGNED",
    "unassigned.reason": "ALLOCATION_FAILED"
  }
]

Get index template information Generally available; Added in 5.2.0

GET /_cat/templates
Api key auth Basic auth Bearer auth

Get information about the index templates in a cluster. You can use index templates to apply index settings and field mappings to new indices at creation. IMPORTANT: cat APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications. For application consumption, use the get index template API.

Required authorization

  • Cluster privileges: monitor

Query parameters

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

  • local boolean

    If true, the request computes the list of selected nodes from the local cluster state. If false the list of selected nodes are computed from the cluster state of the master node. In both cases the coordinating node will send requests for further information to each selected node.

  • master_timeout string

    Period to wait for a connection to the master node.

    Values are -1 or 0.

Responses

GET /_cat/templates 
GET _cat/templates/my-template-*?v=true&s=name&format=json

resp = client.cat.templates(
    name="my-template-*",
    v=True,
    s="name",
    format="json",
)
const response = await client.cat.templates({
  name: "my-template-*",
  v: "true",
  s: "name",
  format: "json",
});
response = client.cat.templates(
  name: "my-template-*",
  v: "true",
  s: "name",
  format: "json"
)
$resp = $client->cat()->templates([
    "name" => "my-template-*",
    "v" => "true",
    "s" => "name",
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/templates/my-template-*?v=true&s=name&format=json"
Response examples (200)
A successful response from `GET _cat/templates/my-template-*?v=true&s=name&format=json`. 
[
  {
    "name": "my-template-0",
    "index_patterns": "[te*]",
    "order": "500",
    "version": null,
    "composed_of": "[]"
  },
  {
    "name": "my-template-1",
    "index_patterns": "[tea*]",
    "order": "501",
    "version": null,
    "composed_of": "[]"
  },
  {
    "name": "my-template-2",
    "index_patterns": "[teak*]",
    "order": "502",
    "version": "7",
    "composed_of": "[]"
  }
]

Get index template information Generally available; Added in 5.2.0

GET /_cat/templates/{name}
Api key auth Basic auth Bearer auth

Get information about the index templates in a cluster. You can use index templates to apply index settings and field mappings to new indices at creation. IMPORTANT: cat APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications. For application consumption, use the get index template API.

Required authorization

  • Cluster privileges: monitor

Path parameters

  • name string Required

    The name of the template to return. Accepts wildcard expressions. If omitted, all templates are returned.

Query parameters

  • h string | array[string]

    List of columns to appear in the response. Supports simple wildcards.

  • s string | array[string]

    List of columns that determine how the table should be sorted. Sorting defaults to ascending and can be changed by setting :asc or :desc as a suffix to the column name.

  • local boolean

    If true, the request computes the list of selected nodes from the local cluster state. If false the list of selected nodes are computed from the cluster state of the master node. In both cases the coordinating node will send requests for further information to each selected node.

  • master_timeout string

    Period to wait for a connection to the master node.

    Values are -1 or 0.

Responses

GET /_cat/templates/{name} 
GET _cat/templates/my-template-*?v=true&s=name&format=json

resp = client.cat.templates(
    name="my-template-*",
    v=True,
    s="name",
    format="json",
)
const response = await client.cat.templates({
  name: "my-template-*",
  v: "true",
  s: "name",
  format: "json",
});
response = client.cat.templates(
  name: "my-template-*",
  v: "true",
  s: "name",
  format: "json"
)
$resp = $client->cat()->templates([
    "name" => "my-template-*",
    "v" => "true",
    "s" => "name",
    "format" => "json",
]);
curl -X GET -H "Authorization: ApiKey $ELASTIC_API_KEY" "$ELASTICSEARCH_URL/_cat/templates/my-template-*?v=true&s=name&format=json"
Response examples (200)
A successful response from `GET _cat/templates/my-template-*?v=true&s=name&format=json`. 
[
  {
    "name": "my-template-0",
    "index_patterns": "[te*]",
    "order": "500",
    "version": null,
    "composed_of": "[]"
  },
  {
    "name": "my-template-1",
    "index_patterns": "[tea*]",
    "order": "501",
    "version": null,
    "composed_of": "[]"
  },
  {
    "name": "my-template-2",
    "index_patterns": "[teak*]",
    "order": "502",
    "version": "7",
    "composed_of": "[]"
  }
]

Cluster