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…
Sequence files, map files, and Avro datafiles are all row-oriented file formats, which means that the values for each row…
Serialization is the process of turning structured objects into a byte stream for transmission over a network or for writing…
File compression brings two major benefits: it reduces the space needed to store files, and it speeds up data transfer…
Problem to solve – Load the collector data from mysql database and process it using mapreduce framework. We have a…