/** {@inheritDoc} */
  @Override
  protected void beforeTestsStarted() throws Exception {
    chunk = new byte[128];

    for (int i = 0; i < chunk.length; i++) chunk[i] = (byte) i;

    Ignite igniteSecondary =
        startGridWithIgfs("grid-secondary", "igfs-secondary", PRIMARY, null, SECONDARY_REST_CFG);

    IgfsSecondaryFileSystem hadoopFs =
        new IgniteHadoopIgfsSecondaryFileSystem(SECONDARY_URI, SECONDARY_CFG);

    Ignite ignite = startGridWithIgfs("grid", "igfs", mode, hadoopFs, PRIMARY_REST_CFG);

    igfsSecondary = (IgfsImpl) igniteSecondary.fileSystem("igfs-secondary");
    igfs = (IgfsImpl) ignite.fileSystem("igfs");
  }