In the real world, user code is buggy, processes crash, and machines fail. One of the major benefits of using…
You can run a mapreduce job with a single method call submit() on a Job object or you can also…
MapReduce makes the guarantee that the input to every reducer is sorted by key. The process by which the system…
Performance issues in a map reduce jobs is a common problem faced by hadoop developers and there are a few hadoop…
Apache YARN (Yet Another Resource Negotiator) is Hadoop’s cluster resource management system. YARN was introduced in Hadoop 2 to improve…