@Test
  public void multipartUploadTest() throws Exception {
    for (Container container : ACCOUNT.getAllContainers()) {
      int partCount = TestUtils.RANDOM.nextInt(15) + 1;
      int partSize = TestUtils.RANDOM.nextInt(1024) + 1;
      doMultipartUploadTest(ACCOUNT, container, partCount, partSize);
    }
  }
Shuts down the Ambry frontend server.
ambry-frontend/src/integration-test/java/com/github/ambry/frontend/S3IntegrationTest.java