public int run(int numMappers, long numNodes, Path tmpOutput, Integer width,
      Integer wrapMultiplier, Integer numWalkers) throws Exception {
      int ret =
        runRandomInputGenerator(numMappers, numNodes, tmpOutput, width, wrapMultiplier, numWalkers);
      if (ret > 0) {
        return ret;
      }
      return runGenerator(numMappers, numNodes, tmpOutput, width, wrapMultiplier, numWalkers);
    }
Randomly selects and walks a random flushed loop concurrently with the Generator Mapper by
spawning ConcurrentWalker's with specified StartNodes. These ConcurrentWalker's are
configured to only log erroneous nodes.
hbase-it/src/test/java/org/apache/hadoop/hbase/test/IntegrationTestBigLinkedList.java