InfluxDB 2.x: Map unmapped buckets (DBRP / InfluxDB 1.x compatibility)

If you want to query an InfluxDB 2.x with the query language InfluxQL you have to create a map for your bucket.
In InfluxDB 1.x, data is stored in databases and retention policies. In InfluxDB OSS 2.0, data is stored in buckets. Because InfluxQL uses the 1.x data model, before querying in InfluxQL, a bucket must be mapped to a database and retention policy (DBRP).
If you don't create this mapping, an error will occurs, because influx can't find the database.

API

curl --request POST http://localhost:<INFLUXDB_PORT>/api/v2/dbrps \
  --header "Authorization: Token <YOUR_TOKEN>" \
  --header 'Content-type: application/json' \
  --data '{
        "bucketID": "<YOUR_BUCKET_ID>",
        "database": "<YOUR_BUCKET_NAME>",
        "default": true,
        "orgID": "<YOUR_ORGANISATION_ID>",
        "retention_policy": "<YOUR_RETENTION_POLICY_FOR_MAPPING>"
      }'

Source: https://docs.influxdata.com/influxdb/v2.1/query-data/influxql/#map-unmapped-buckets

CLI

influx v1 dbrp create \
  --db <YOUR_BUCKET_NAME> \
  --rp <YOUR_RETENTION_POLICY_FOR_MAPPING> \
  --bucket-id <YOUR_BUCKET_ID> \
  --default

Important Following InfluxQL queries are unsupported:

• SELECT INTO
• ALTER
• CREATE
• DROP (limited support)
• GRANT
• KILL
• REVOKE

List all retention policy mappings

API

curl --request GET http://localhost:<INFLUXDB_PORT>/api/v2/dbrps?orgID=<YOUR_ORGANISATION_ID> \
  --header "Authorization: Token <YOUR_TOKEN>" \

CLI

influx v1 dbrp list --org-id <YOUR_ORGANISATION_ID> -t <YOUR_TOKEN>

Remove a retention policy mapping

CLI

influx v1 dbrp delete --id <DBRP_ID> --org-id <YOUR_ORGANISATION_ID> -t <YOUR_TOKEN>