IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Feature migration APIs

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Feature migration APIs

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These APIs are designed for indirect use by Kibana’s Upgrade Assistant. We strongly recommend you use the Upgrade Assistant to upgrade from 7.17 to 8.5.3. For upgrade instructions, refer to Upgrading to Elastic 8.5.3.

Version upgrades sometimes require changes to how features store configuration information and data in system indices. The feature migration APIs enable you to see what features require changes, initiate the automatic migration process, and check migration status.

Some functionality might be temporarily unavailable during the migration process.

Request

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GET /_migration/system_features

POST /_migration/system_features

Prerequisites

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If the Elasticsearch security features are enabled, you must have the manage cluster privilege to use this API.

Description

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Submit a GET request to the _migration/system_features endpoint to see what features need to be migrated and the status of any migrations that are in progress.

Submit a POST request to the endpoint to start the migration process.

Examples

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When you submit a GET request to the _migration/system_features endpoint, the response indicates the status of any features that need to be migrated.

GET /_migration/system_features

Example response:

{
  "features" : [
    {
      "feature_name" : "async_search",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "enrich",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "fleet",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "geoip",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "kibana",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "logstash_management",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "machine_learning",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "searchable_snapshots",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "security",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "tasks",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "transform",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    },
    {
      "feature_name" : "watcher",
      "minimum_index_version" : "8.0.0",
      "migration_status" : "NO_MIGRATION_NEEDED",
      "indices" : [ ]
    }
  ],
  "migration_status" : "NO_MIGRATION_NEEDED"
}

When you submit a POST request to the _migration/system_features endpoint to start the migration process, the response indicates what features will be migrated.

POST /_migration/system_features

Example response:

{
  "accepted" : true,
  "features" : [
    {
      "feature_name" : "security" 
    }
  ]
}

Elasticsearch security will be migrated before the cluster is upgraded.

Subsequent GET requests will return the status of the migration process.

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