how Hadoop is different from other data processing tools?
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Where is the output of Mapper written in Hadoop?
what is WebDAV in Hadoop?
Map reduce jobs take too long. What can be done to improve the performance of the cluster?
When should you use a reducer?
Explain JobConf in MapReduce.
What is the core of the job in MapReduce framework?
What is the process of changing the split size if there is limited storage space on Commodity Hardware?
What is the problem with the small file in Hadoop?
How to create custom key and custom value in MapReduce Job?
Can there be no Reducer?
What is SequenceFileInputFormat?
How does MapReduce framework view its input internally?