How to write a custom partitioner for a Hadoop MapReduce job?

655

---

What is the need of MapReduce in Hadoop?

632

---

What does a 'MapReduce Partitioner' do?

689

---

What is the difference between Reducer and Combiner in Hadoop MapReduce?

681

---

What is Data Locality in Hadoop?

673

---

What is KeyValueTextInputFormat in Hadoop MapReduce?

811

---

What is Mapper in Hadoop MapReduce?

742

---

How to set mappers and reducers for MapReduce jobs?

635

---

How to sort intermediate output based on values in MapReduce?

660

---

Can we set the number of reducers to zero in MapReduce?

703

---

Where sorting is done on mapper node or reducer node in MapReduce?

683

---

Which Sorting algorithm is used in Hadoop MapReduce?

605

---

What is the need of MapReduce?

633

---

How to configure the number of the Combiner in MapReduce?

626

---

How to change a number of mappers running on a slave in MapReduce?

791

---