<p>Cancels an existing Amazon FSx for Lustre data repository task if that task is in either the <code>PENDING</code> or <code>EXECUTING</code> state. When you cancel a task, Amazon FSx does the following.</p> <ul> <li> <p>Any files that FSx has already exported are not reverted.</p> </li> <li> <p>FSx continues to export any files that are "in-flight" when the cancel operation is received.</p> </li> <li> <p>FSx does not export any files that have not yet been exported.</p> </li> </ul>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}