}

    if (userRequest.header("User-Agent") == null) {
      requestBuilder.header("User-Agent", USER_AGENT)
    }

    val networkRequest = requestBuilder.build()
    val networkResponse = chain.proceed(networkRequest)

    cookieJar.receiveHeaders(networkRequest.url, networkResponse.headers)

    val responseBuilder =
      networkResponse
        .newBuilder()
        .request(networkRequest)

Once the config changes are applied, proceed to restart all Hive services.

![hive-config](https://github.com/minio/minio/blob/master/docs/bigdata/images/image14.png?raw=true "restart hive services")

## **4. Run Sample Applications**

   */
  fun onFailure(
    call: Call,
    e: IOException,
  )

  /**
   * Called when the HTTP response was successfully returned by the remote server. The callback may
   * proceed to read the response body with [Response.body]. The response is still live until its
   * response body is [closed][ResponseBody]. The recipient of the callback may consume the response
   * body on another thread.
   *

        String pin = CertificatePinner.pin(certificate);
        if (denylist.contains(pin)) {
          throw new IOException("Denylisted peer certificate: " + pin);
        }
      }
      return chain.proceed(chain.request());
    }
  };

  private final OkHttpClient client = new OkHttpClient.Builder()
      .addNetworkInterceptor(CHECK_HANDSHAKE_INTERCEPTOR)
      .build();

  public void run() throws Exception {

      if (request.url().host().equals(host)) {
        request = request.newBuilder()
            .header("Authorization", credentials)
            .build();
      }
      return chain.proceed(request);
    }
  }

          }
        }
      }
    };

    OkHttpClient client = new OkHttpClient.Builder()
        .addNetworkInterceptor(chain -> {
          Response originalResponse = chain.proceed(chain.request());
          return originalResponse.newBuilder()
              .body(new ProgressResponseBody(originalResponse.body(), progressListener))
              .build();
        })
        .build();

  /** Dangerous interceptor that rewrites the server's cache-control header. */
  private static final Interceptor REWRITE_CACHE_CONTROL_INTERCEPTOR = chain -> {
    Response originalResponse = chain.proceed(chain.request());
    return originalResponse.newBuilder()
        .header("Cache-Control", "max-age=60")
        .build();
  };

  private final OkHttpClient client;

You may query the cluster probe endpoint to check if the node which received the request can be taken down for maintenance, if the server replies back '412 Precondition Failed' this means you will lose HA. '200 OK' means you are okay to proceed.

```
curl http://minio1:9001/minio/health/cluster?maintenance=true
HTTP/1.1 412 Precondition Failed
Accept-Ranges: bytes
Content-Length: 0
Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1

Endpoint:  http://192.168.1.92:9000  http://65.19.167.92:9000
AccessKey: MVPSPBW4NP2CMV1W3TXD
SecretKey: X3RKxEeFOI8InuNWoPsbG+XEVoaJVCqbvxe+PTOa
...
...
```

Instance is now accessible on the host at port 9000, proceed to access the Web browser at <http://127.0.0.1:9000/>

## Explore Further

- [MinIO Erasure Code Overview](https://docs.min.io/community/minio-object-store/operations/concepts/erasure-coding.html)

    override fun intercept(chain: Interceptor.Chain): Response {
      val level = this.level

      val request = chain.request()
      if (level == Level.NONE) {
        return chain.proceed(request)
      }

      val logBody = level == Level.BODY
      val logHeaders = logBody || level == Level.HEADERS

      val requestBody = request.body

      val connection = chain.connection()