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admin_startStateMigration

The startStateMigration is an administrative method that starts a state migration and removes old state/storage trie nodes. This can save the storage space of a Kaia node. The method returns an error if it fails to start a state migration, or null if it succeeds to start. NOTE: After the state migration, the node cannot serve APIs with previous states.

JSONRPC: admin_startStateMigration

Request

application/json

Body

params array

Responses

200

null if the state migration has started, or an error message if not.

application/json

Schema

Schema

error

object

code int64required

A Number that indicates the error type that occurred. This MUST be an integer.

code	message	description
-32700	Parse error	invalid JSON was received by the server. An error occurred on the server while parsing the JSON text.
-32602	Invalid params	Invalid method parameter(s).

message string

A String providing a short description of the error. The message SHOULD be limited to a concise single sentence.

data string

A Primitive or Structured value that contains additional information about the error. This may be omitted. The value of this member is defined by the Server (e.g. detailed error information, nested errors etc.).

result string

null if the state migration has started, or an error message if not.

Example (from schema)

{
  "jsonrpc": "2.0",
  "id": 0,
  "error": {
    "code": -32700,
    "message": "Parse error",
    "data": "string"
  },
  "result": null
}

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