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Migration upgrade API

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Migration upgrade API

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To prepare a cluster for an upgrade to Elasticsearch version 7, use the Kibana Upgrade Assistant or reindex manually before upgrading.

Deprecated in 6.7.

Use the Kibana Upgrade Assistant or reindex manually before upgrading.

The migration upgrade API performs the upgrade of internal indices to make them compatible with version 6 of Elasticsearch.

Request

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POST /_xpack/migration/upgrade/<index_name>

Description

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Indices must be upgraded one at a time.

Path Parameters

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index_name: (string) Identifier for the index.
wait_for_completion: (boolean) Defines whether the upgrade call blocks until the upgrade process is finished. The default value is true. If set to false, the upgrade can be performed asynchronously.

Examples

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The following example submits a POST request to the /_xpack/migration/upgrade/<index_name> endpoint:

POST /_xpack/migration/upgrade/.watches

A successful call returns the statistics about the upgrade process:

{
  "took" : 127,
  "timed_out" : false,
  "total" : 4,
  "updated" : 0,
  "created" : 4,
  "deleted" : 0,
  "batches" : 1,
  "version_conflicts" : 0,
  "noops" : 0,
  "retries" : {
    "bulk" : 0,
    "search" : 0
  },
  "throttled_millis" : 0,
  "failures" : [ ]
}

The following example upgrades a large index asynchronously by specifying the wait_for_completion parameter:

POST /_xpack/migration/upgrade/.watches?wait_for_completion=false

This call should return the id of the upgrade process task:

{
  "task" : "PFvgv7T6TGumRyFF3vqTFg:1137"
}

The status of the running or finished upgrade requests can be obtained by using the Task API:

GET _tasks/PFvgv7T6TGumRyFF3vqTFg:1137?detailed=true

{
  "completed" : true, 
  "task" : {
    "node" : "PFvgv7T6TGumRyFF3vqTFg",
    "id" : 1137,
    "type" : "transport",
    "action" : "cluster:admin/xpack/upgrade",
    "description" : "",
    "start_time_in_millis" : 1500650625413,
    "running_time_in_nanos" : 947456819,
    "cancellable" : true
  },
  "response" : { 
    "took" : 212,
    "timed_out" : false,
    "total" : 4,
    "updated" : 0,
    "created" : 4,
    "deleted" : 0,
    "batches" : 1,
    "version_conflicts" : 0,
    "noops" : 0,
    "retries" : {
      "bulk" : 0,
      "search" : 0
    },
    "throttled_millis" : 0,
    "failures" : [ ]
  }
}

	If the `completed` field value is `true`, the upgrade request has finished. If it is `false`, the request is still running.
	The `response` field contains the status of the upgrade request.

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