10-22. Figure 10-14 describes a simple Hadoop architecture. If a real-world system is implemented using this approach, it will suffer from a specific weakness. Identify what this weakness is and find out what the latest versions of Hadoop have done to address it. FIGURE 10-14 MapReduce and HDFS HDFS Cluster MapReduce Engine Job Tracker Name Node Masters Slaves Task Tracker 1 Data Node 1 Task Tracker 2 Data Node 2 Task Trackern Data Noden