private LocalTachyonClusterMultiMaster setupMultiMasterCluster()
     throws IOException, ConnectionFailedException {
   // Setup and start the tachyon-ft cluster.
   LocalTachyonClusterMultiMaster cluster =
       new LocalTachyonClusterMultiMaster(100, TEST_NUM_MASTERS, TEST_BLOCK_SIZE);
   cluster.start();
   mMasterTachyonConf = cluster.getMasterTachyonConf();
   mCreateFileThread = new ClientThread(0, cluster.getClient());
   mExecutorsForClient.submit(mCreateFileThread);
   return cluster;
 }