Switches the indices, ILM policies, and legacy, composable and component templates from using custom node attributes and Added in 7.14.0

POST /_ilm/migrate_to_data_tiers

attribute-based allocation filters to using data tiers, and optionally deletes one legacy index template.+ Using node roles enables ILM to automatically move the indices between data tiers.

Query parameters

  • dry_run boolean

    If true, simulates the migration from node attributes based allocation filters to data tiers, but does not perform the migration. This provides a way to retrieve the indices and ILM policies that need to be migrated.

application/json

Body

Responses

POST /_ilm/migrate_to_data_tiers 
curl \
 -X POST http://api.example.com/_ilm/migrate_to_data_tiers \
 -H "Content-Type: application/json" \
 -d '"{\n  \"legacy_template_to_delete\": \"global-template\",\n  \"node_attribute\": \"custom_attribute_name\"\n}"'
Request example
The example migrates the indices, ILM policies, legacy templates, composable, and component templates away from defining custom allocation filtering using the custom_attribute_name node attribute, and deletes the legacy template with name global-template if it exists in the system. 
{
  "legacy_template_to_delete": "global-template",
  "node_attribute": "custom_attribute_name"
}
Response examples (200) 
{
  "dry_run": false,
  "removed_legacy_template":"global-template",
  "migrated_ilm_policies":["policy_with_allocate_action"],
  "migrated_indices":["warm-index-to-migrate-000001"],
  "migrated_legacy_templates":["a-legacy-template"],
  "migrated_composable_templates":["a-composable-template"],
  "migrated_component_templates":["a-component-template"]
}