Name some companies that use Hadoop?

966

---

what is hadoop archive?

938

---

Rack awareness of Namenode?

869

---

Have you ever used Counters in Hadoop. Give us an example scenario?

1068

---

How is the distance between two nodes defined in Hadoop?

1465

---

What is speculative execution in Hadoop?

1059

---

How we can change Replication factor when Data is on the fly?

1354

---

What alternate way does HDFS provides to recover data in case a Namenode

960

---

What are the problems with Hadoop 1.0?

1061

---

what are the nodes in the Hadoop cluster?

1053

---

What Mapper does?

994

---

What is your favourite tool in the hadoop ecosystem?

971

---

What is the function of NodeManager?

914

---

what is pig?

841

---

What are the steps involved in MapReduce framework?

990

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