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

1054

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What is the InputFormat ?

1005

---

Command to format the NameNode?

929

---

Who is a 'user' in HDFS?

886

---

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

1300

---

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

1010

---

What is DistributedCache and its purpose?

899

---

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

913

---

How you can contact your client everyday ?

966

---

What is Input Split in hadoop?

971

---

What is 'Key value pair' in HDFS?

957

---

How to keep HDFS cluster balanced?

1093

---

What is the port number for NameNode

834

---

What are the benefits of block transfer?

988

---

How did you debug your Hadoop code ?

1366

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