opensearch-docs-cn/_im-plugin/index-rollups/rollup-api.md

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Index rollups API

Use the index rollup operations to programmatically work with index rollup jobs.

---

Table of contents

• TOC {:toc}

---

Create or update an index rollup job

Introduced 1.0 {: .label .label-purple }

Creates or updates an index rollup job. You must provide the seq_no and primary_term parameters.

Request

PUT _plugins/_rollup/jobs/<rollup_id> // Create
PUT _plugins/_rollup/jobs/<rollup_id>?if_seq_no=1&if_primary_term=1 // Update
{
  "rollup": {
    "source_index": "nyc-taxi-data",
    "target_index": "rollup-nyc-taxi-data",
    "schedule": {
      "interval": {
        "period": 1,
        "unit": "Days"
      }
    },
    "description": "Example rollup job",
    "enabled": true,
    "page_size": 200,
    "delay": 0,
    "roles": [
      "rollup_all",
      "nyc_taxi_all",
      "example_rollup_index_all"
    ],
    "continuous": false,
    "dimensions": {
      "date_histogram": {
        "source_field": "tpep_pickup_datetime",
        "fixed_interval": "1h",
        "timezone": "America/Los_Angeles"
      },
      "terms": {
        "source_field": "PULocationID"
      },
      "metrics": [
        {
          "source_field": "passenger_count",
          "metrics": [
            {
              "avg": {}
            },
            {
              "sum": {}
            },
            {
              "max": {}
            },
            {
              "min": {}
            },
            {
              "value_count": {}
            }
          ]
        }
      ]
    }
  }
}

You can specify the following options.

Options	Description	Type	Required
source_index	The name of the detector.	string	Yes
target_index	Specify the target index that the rolled up data is ingested into. You could either create a new target index or use an existing index. The target index cannot be a combination of raw and rolled up data.	string	Yes
schedule	Schedule of the index rollup job which can be an interval or a cron expression.	object	Yes
schedule.interval	Specify the frequency of execution of the rollup job.	object	No
schedule.interval.start_time	Start time of the interval.	timestamp	Yes
schedule.interval.period	Define the interval period.	string	Yes
schedule.interval.unit	Specify the time unit of the interval.	string	Yes
schedule.interval.cron	Optionally, specify a cron expression to define therollup frequency.	list	No
schedule.interval.cron.expression	Specify a Unix cron expression.	string	Yes
schedule.interval.cron.timezone	Specify timezones as defined by the IANA Time Zone Database. Defaults to UTC.	string	No
description	Optionally, describe the rollup job.	string	No
enabled	When true, the index rollup job is scheduled. Default is true.	boolean	Yes
continuous	Specify whether or not the index rollup job continuously rolls up data forever or just executes over the current data set once and stops. Default is false.	boolean	Yes
error_notification	Set up a Mustache message template sent for error notifications. For example, if an index rollup job fails, the system sends a message to a Slack channel.	object	No
page_size	Specify the number of buckets to paginate through at a time while rolling up.	number	Yes
delay	Specify time value to delay execution of the index rollup job.	time_unit	No
dimensions	Specify aggregations to create dimensions for the roll up time window.	object	Yes
dimensions.date_histogram	Specify either fixed_interval or calendar_interval, but not both. Either one limits what you can query in the target index.	object	No
dimensions.date_histogram.fixed_interval	Specify the fixed interval for aggregations in milliseconds, seconds, minutes, hours, or days.	string	No
dimensions.date_histogram.calendar_interval	Specify the calendar interval for aggregations in minutes, hours, days, weeks, months, quarters, or years.	string	No
dimensions.date_histogram.field	Specify the date field used in date histogram aggregation.	string	No
dimensions.date_histogram.timezone	Specify the timezones as defined by the IANA Time Zone Database. The default is UTC.	string	No
dimensions.terms	Specify the term aggregations that you want to roll up.	object	No
dimensions.terms.fields	Specify terms aggregation for compatible fields.	object	No
dimensions.histogram	Specify the histogram aggregations that you want to roll up.	object	No
dimensions.histogram.field	Add a field for histogram aggregations.	string	Yes
dimensions.histogram.interval	Specify the histogram aggregation interval for the field.	long	Yes
dimensions.metrics	Specify a list of objects that represent the fields and metrics that you want to calculate.	nested object	No
dimensions.metrics.field	Specify the field that you want to perform metric aggregations on.	string	No
dimensions.metrics.field.metrics	Specify the metric aggregations you want to calculate for the field.	multiple strings	No

Sample response

{
  "_id": "rollup_id",
  "_seqNo": 1,
  "_primaryTerm": 1,
  "rollup": { ... }
}

Get an index rollup job

Introduced 1.0 {: .label .label-purple }

Returns all information about an index rollup job based on the rollup_id.

Request

GET _plugins/_rollup/jobs/<rollup_id>

Sample response

{
  "_id": "my_rollup",
  "_seqNo": 1,
  "_primaryTerm": 1,
  "rollup": { ... }
}

---

Delete an index rollup job

Introduced 1.0 {: .label .label-purple }

Deletes an index rollup job based on the rollup_id.

Request

DELETE _plugins/_rollup/jobs/<rollup_id>

Sample response

200 OK

---

Start or stop an index rollup job

Introduced 1.0 {: .label .label-purple }

Start or stop an index rollup job.

Request

POST _plugins/_rollup/jobs/<rollup_id>/_start
POST _plugins/_rollup/jobs/<rollup_id>/_stop

Sample response

200 OK

---

Explain an index rollup job

Introduced 1.0 {: .label .label-purple }

Returns detailed metadata information about the index rollup job and its current progress.

Request

GET _plugins/_rollup/jobs/<rollup_id>/_explain

Sample response

{
  "example_rollup": {
    "rollup_id": "example_rollup",
    "last_updated_time": 1602014281,
    "continuous": {
      "next_window_start_time": 1602055591,
      "next_window_end_time": 1602075591
    },
    "status": "running",
    "failure_reason": null,
    "stats": {
      "pages_processed": 342,
      "documents_processed": 489359,
      "rollups_indexed": 3420,
      "index_time_in_ms": 30495,
      "search_time_in_ms": 584922
    }
  }
}