What is the meaning of speculative execution in Hadoop? Why is it important?

1089

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What is the InputFormat ?

1066

---

Command to format the NameNode?

985

---

Who is a 'user' in HDFS?

941

---

What is the meaning of the term "non-DFS used" in Hadoop web-console?

1352

---

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1052

---

What is DistributedCache and its purpose?

944

---

What is HDFS ? How it is different from traditional file systems?

950

---

How you can contact your client everyday ?

1009

---

What is Input Split in hadoop?

1047

---

What is 'Key value pair' in HDFS?

1010

---

How to keep HDFS cluster balanced?

1136

---

What is the port number for NameNode

886

---

What are the benefits of block transfer?

1036

---

How did you debug your Hadoop code ?

1413

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