"Hadoop is a leaky abstraction because it crashes ? Does not compute!" Hadoop is an abstraction over a distributed file system, that allows programmers to crun

"Hadoop is a leaky abstraction because it crashes ? Does not compute!" Hadoop is an abstraction over a distributed file system, that allows programmers to crunch large amounts of data using map reduce. It leaks in the sense that you have to think about implementation details of the job tracker or you will crash it. That's a leak, right?