244 lines
6.8 KiB
Markdown
244 lines
6.8 KiB
Markdown
---
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layout: default
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title: Index rollups API
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parent: Index rollups
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nav_order: 9
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---
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# Index rollups API
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Use the index rollup operations to programmatically work with index rollup jobs.
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---
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#### Table of contents
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- TOC
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{:toc}
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---
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## Create or update an index rollup job
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Introduced 1.0
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{: .label .label-purple }
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Creates or updates an index rollup job.
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You must provide the `seq_no` and `primary_term` parameters.
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#### Request
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```json
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PUT _plugins/_rollup/jobs/<rollup_id> // Create
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PUT _plugins/_rollup/jobs/<rollup_id>?if_seq_no=1&if_primary_term=1 // Update
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{
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"rollup": {
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"source_index": "nyc-taxi-data",
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"target_index": "rollup-nyc-taxi-data",
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"schedule": {
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"interval": {
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"period": 1,
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"unit": "Days"
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}
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},
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"description": "Example rollup job",
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"enabled": true,
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"page_size": 200,
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"delay": 0,
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"roles": [
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"rollup_all",
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"nyc_taxi_all",
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"example_rollup_index_all"
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],
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"continuous": false,
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"dimensions": {
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"date_histogram": {
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"source_field": "tpep_pickup_datetime",
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"fixed_interval": "1h",
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"timezone": "America/Los_Angeles"
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},
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"terms": {
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"source_field": "PULocationID"
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},
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"metrics": [
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{
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"source_field": "passenger_count",
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"metrics": [
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{
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"avg": {}
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},
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{
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"sum": {}
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},
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{
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"max": {}
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},
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{
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"min": {}
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},
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{
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"value_count": {}
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}
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]
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}
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]
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}
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}
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}
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```
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You can specify the following options.
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Options | Description | Type | Required
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:--- | :--- |:--- |:--- |
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`source_index` | The name of the detector. | `string` | Yes
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`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
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`schedule` | Schedule of the index rollup job which can be an interval or a cron expression. | `object` | Yes
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`schedule.interval` | Specify the frequency of execution of the rollup job. | `object` | No
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`schedule.interval.start_time` | Start time of the interval. | `timestamp` | Yes
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`schedule.interval.period` | Define the interval period. | `string` | Yes
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`schedule.interval.unit` | Specify the time unit of the interval. | `string` | Yes
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`schedule.interval.cron` | Optionally, specify a cron expression to define therollup frequency. | `list` | No
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`schedule.interval.cron.expression` | Specify a Unix cron expression. | `string` | Yes
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`schedule.interval.cron.timezone` | Specify timezones as defined by the IANA Time Zone Database. Defaults to UTC. | `string` | No
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`description` | Optionally, describe the rollup job. | `string` | No
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`enabled` | When true, the index rollup job is scheduled. Default is true. | `boolean` | Yes
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`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
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`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
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`page_size` | Specify the number of buckets to paginate through at a time while rolling up. | `number` | Yes
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`delay` | Specify time value to delay execution of the index rollup job. | `time_unit` | No
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`dimensions` | Specify aggregations to create dimensions for the roll up time window. | `object` | Yes
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`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
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`dimensions.date_histogram.fixed_interval` | Specify the fixed interval for aggregations in milliseconds, seconds, minutes, hours, or days. | `string` | No
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`dimensions.date_histogram.calendar_interval` | Specify the calendar interval for aggregations in minutes, hours, days, weeks, months, quarters, or years. | `string` | No
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`dimensions.date_histogram.field` | Specify the date field used in date histogram aggregation. | `string` | No
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`dimensions.date_histogram.timezone` | Specify the timezones as defined by the IANA Time Zone Database. The default is UTC. | `string` | No
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`dimensions.terms` | Specify the term aggregations that you want to roll up. | `object` | No
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`dimensions.terms.fields` | Specify terms aggregation for compatible fields. | `object` | No
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`dimensions.histogram` | Specify the histogram aggregations that you want to roll up. | `object` | No
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`dimensions.histogram.field` | Add a field for histogram aggregations. | `string` | Yes
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`dimensions.histogram.interval` | Specify the histogram aggregation interval for the field. | `long` | Yes
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`dimensions.metrics` | Specify a list of objects that represent the fields and metrics that you want to calculate. | `nested object` | No
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`dimensions.metrics.field` | Specify the field that you want to perform metric aggregations on. | `string` | No
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`dimensions.metrics.field.metrics` | Specify the metric aggregations you want to calculate for the field. | `multiple strings` | No
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#### Sample response
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```json
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{
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"_id": "rollup_id",
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"_seqNo": 1,
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"_primaryTerm": 1,
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"rollup": { ... }
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}
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```
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## Get an index rollup job
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Introduced 1.0
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{: .label .label-purple }
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Returns all information about an index rollup job based on the `rollup_id`.
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#### Request
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```json
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GET _plugins/_rollup/jobs/<rollup_id>
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```
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#### Sample response
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```json
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{
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"_id": "my_rollup",
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"_seqNo": 1,
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"_primaryTerm": 1,
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"rollup": { ... }
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}
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```
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---
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## Delete an index rollup job
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Introduced 1.0
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{: .label .label-purple }
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Deletes an index rollup job based on the `rollup_id`.
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#### Request
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```json
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DELETE _plugins/_rollup/jobs/<rollup_id>
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```
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#### Sample response
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```json
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200 OK
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```
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---
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## Start or stop an index rollup job
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Introduced 1.0
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{: .label .label-purple }
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Start or stop an index rollup job.
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#### Request
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```json
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POST _plugins/_rollup/jobs/<rollup_id>/_start
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POST _plugins/_rollup/jobs/<rollup_id>/_stop
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```
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#### Sample response
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```json
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200 OK
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```
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---
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## Explain an index rollup job
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Introduced 1.0
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{: .label .label-purple }
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Returns detailed metadata information about the index rollup job and its current progress.
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#### Request
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```json
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GET _plugins/_rollup/jobs/<rollup_id>/_explain
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```
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#### Sample response
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```json
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{
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"example_rollup": {
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"rollup_id": "example_rollup",
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"last_updated_time": 1602014281,
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"continuous": {
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"next_window_start_time": 1602055591,
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"next_window_end_time": 1602075591
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},
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"status": "running",
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"failure_reason": null,
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"stats": {
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"pages_processed": 342,
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"documents_processed": 489359,
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"rollups_indexed": 3420,
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"index_time_in_ms": 30495,
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"search_time_in_ms": 584922
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}
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}
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}
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```
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