Reindex legacy backing indices Technical preview; Added in 8.18.0

POST /_migration/reindex
Api key auth Basic auth Bearer auth

Reindex all legacy backing indices for a data stream. This operation occurs in a persistent task. The persistent task ID is returned immediately and the reindexing work is completed in that task.

application/json

Body Required

  • mode string Required

    Value is upgrade.

  • source object Required
    Hide source attribute Show source attribute object
    • index string Required

Responses

  • 200 application/json
    Hide response attribute Show response attribute object
    • acknowledged boolean Required

      For a successful response, this value is always true. On failure, an exception is returned instead.
POST /_migration/reindex 
POST _migration/reindex { "source": { "index": "my-data-stream" }, "mode": "upgrade" }
resp = client.perform_request( "POST", "/_migration/reindex", headers={"Content-Type": "application/json"}, body={ "source": { "index": "my-data-stream" }, "mode": "upgrade" }, )
const response = await client.transport.request({ method: "POST", path: "/_migration/reindex", body: { source: { index: "my-data-stream", }, mode: "upgrade", }, });
response = client.perform_request( "POST", "/_migration/reindex", {}, { "source": { "index": "my-data-stream" }, "mode": "upgrade" }, { "Content-Type": "application/json" }, )
$requestFactory = Psr17FactoryDiscovery::findRequestFactory(); $streamFactory = Psr17FactoryDiscovery::findStreamFactory(); $request = $requestFactory->createRequest( "POST", "/_migration/reindex", ); $request = $request->withHeader("Content-Type", "application/json"); $request = $request->withBody($streamFactory->createStream( json_encode([ "source" => [ "index" => "my-data-stream", ], "mode" => "upgrade", ]), )); $resp = $client->sendRequest($request);
curl -X POST -H "Authorization: ApiKey $ELASTIC_API_KEY" -H "Content-Type: application/json" -d '{"source":{"index":"my-data-stream"},"mode":"upgrade"}' "$ELASTICSEARCH_URL/_migration/reindex"
client.indices().migrateReindex(m -> m .reindex(r -> r .mode(ModeEnum.Upgrade) .source(s -> s .index("my-data-stream") ) ) );
Request example
An example body for a `POST _migration/reindex` request. 
{ "source": { "index": "my-data-stream" }, "mode": "upgrade" }