Define Writable data types in MapReduce?
No Answer is Posted For this Question
Be the First to Post Answer
Map reduce jobs take too long. What can be done to improve the performance of the cluster?
Where the mapper's intermediate data will be stored?
What is RecordReader in a Map Reduce?
What is the input type/format in MapReduce by default?
What is an input reader in reference to mapreduce?
How does fault tolerance work in mapreduce?
What are ‘maps’ and ‘reduces’?
What is the need of MapReduce?
How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?
What are the steps involved in MapReduce framework?
How would you tackle calculating the number of unique visitors for each hour by mining a huge apache log? You can use post processing on the output of the mapreduce job.
How to submit extra files(jars,static files) for MapReduce job during runtime in Hadoop?