What will you do when NameNode is down?

993

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What is the best hardware configuration to run Hadoop?

1620

---

Should we use RAID in Hadoop or not?

1052

---

How to change Replication Factor For below cases ?

1080

---

What are the basic available commands in Hadoop sqoop ?

960

---

On What concept the Hadoop framework works?

1196

---

How to write a Custom Key Class?

932

---

What if rack 2 and datanode fails?

1058

---

How client application interacts with the NameNode?

948

---

How is the option in Hadoop to skip the bad records?

945

---

How the HDFS Blocks are replicated?

951

---

Explain InputFormat?

1006

---

What is Rack awareness?

993

---

How will format the HDFS ?

1043

---

what are the steps involved in commissioning adding

907

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