Explain about the partitioning, shuffle and sort phase

737

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What are the four basic parameters of a reducer?

715

---

what is distributed cache in mapreduce framework?

731

---

What is the work of hive/hcatalog?

787

---

What is apache hcatalog?

784

---

What is hive installation path?

793

---

What is hive metastore?

755

---

What is a task tracker?

56

---

Explain the difference between nas and hdfs?

44

---

What is a job tracker?

46

---

What is the difference betwaeen mapreduce engine and hdfs cluster?

51

---

What is the difference between namenode, backup node and checkpoint namenode?

60

---

Is namenode also a commodity?

51

---

What does hbase consists of?

186

---

What are the three types of tombstone markers in hbase?

159

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