How is the distance between two nodes defined in Hadoop?

1135

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What is speculative execution in Hadoop?

773

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

1032

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

663

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What are the problems with Hadoop 1.0?

768

---

what are the nodes in the Hadoop cluster?

662

---

What Mapper does?

667

---

What is your favourite tool in the hadoop ecosystem?

641

---

What is the function of NodeManager?

665

---

explain Metadata in Namenode?

599

---

What is a 'block' in HDFS?

686

---

What is Derby database?

632

---

How many Daemon processes run on a Hadoop system?

833

---

What are the limitations of importing RDBMS tables into Hcatalog directly?

673

---

How the Client communicates with HDFS?

716

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