Un-Answered Questions { MapReduce }

what is a Task Tracker in Hadoop?

401


what are the most common input formats defined in Hadoop?

367


what daemons run on a master node and slave nodes?

393


What is Text Input Format?

390


what is WebDAV in Hadoop?

451


What platform and Java version is required to run Hadoop?

393


what are the three modes in which Hadoop can be run?

365


How data is spilt in Hadoop?

390


what is storage and compute nodes?

419


When Namenode is down what happens to job tracker?

455


what are the main configuration parameters that user need to specify to run Mapreduce Job ?

373


what is "map" and what is "reducer" in Hadoop?

377


What is Shuffling and Sorting in a MapReduce?

415


What is the difference between Hadoop and RDBMS?

365


how can you check whether Namenode is working beside using the jps command?

407