Name some companies that use Hadoop?

1011

---

what is hadoop archive?

969

---

Rack awareness of Namenode?

918

---

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

1101

---

How is the distance between two nodes defined in Hadoop?

1500

---

What is speculative execution in Hadoop?

1099

---

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

1388

---

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

999

---

What are the problems with Hadoop 1.0?

1097

---

what are the nodes in the Hadoop cluster?

1079

---

What Mapper does?

1037

---

What is your favourite tool in the hadoop ecosystem?

1015

---

What is the function of NodeManager?

953

---

what is pig?

886

---

What are the steps involved in MapReduce framework?

1057

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