Name some companies that use Hadoop?

948

---

what is hadoop archive?

913

---

Rack awareness of Namenode?

852

---

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

1061

---

How is the distance between two nodes defined in Hadoop?

1453

---

What is speculative execution in Hadoop?

1049

---

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

1337

---

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

949

---

What are the problems with Hadoop 1.0?

1038

---

what are the nodes in the Hadoop cluster?

1043

---

What Mapper does?

982

---

What is your favourite tool in the hadoop ecosystem?

955

---

What is the function of NodeManager?

905

---

what is pig?

835

---

What are the steps involved in MapReduce framework?

976

---