Name some companies that use Hadoop?

913

---

what is hadoop archive?

884

---

Rack awareness of Namenode?

809

---

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

1017

---

How is the distance between two nodes defined in Hadoop?

1422

---

What is speculative execution in Hadoop?

1020

---

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

1299

---

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

907

---

What are the problems with Hadoop 1.0?

991

---

what are the nodes in the Hadoop cluster?

999

---

What Mapper does?

939

---

What is your favourite tool in the hadoop ecosystem?

919

---

What is the function of NodeManager?

867

---

what is pig?

794

---

What are the steps involved in MapReduce framework?

932

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