logger.error(() -> "Failed to flush " + stream(indices).get(stream -> stream.collect(Collectors.joining(", "))), e);
            }
        });

    }

    public PingResponse ping() {
        try {
            final ClusterHealthResponse response =
                    client.admin().cluster().prepareHealth().execute().actionGet(ComponentUtil.getFessConfig().getIndexHealthTimeout());

	bucketNames := []string{"minio-bucket", "minio-2-bucket", "minio-3-bucket"}
	objectNames := []string{"minio-object-1.txt", "minio-object.txt", "neymar-1.jpeg", "neymar.jpeg", "parrot-1.png", "parrot.png"}
	uploadIDs := []string{}
	opts := ObjectOptions{}
	// bucketnames[0].
	// objectNames[0].
	// uploadIds [0].
	// Create bucket before initiating NewMultipartUpload.