Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?

692

---

What is output format in hadoop?

683

---

How to enable/configure the compression of map output data in hadoop?

766

---

What hadoop does in safe mode?

650

---

What is inputformat in hadoop?

744

---

Explain how input and output data format of the hadoop framework?

714

---

when hadoop enter in safe mode?

745

---

How to enable recycle bin or trash in hadoop?

706

---

Whats is distributed cache in hadoop?

678

---

what should be the ideal replication factor in hadoop?

653

---

What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?

722

---

How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?

728

---

How does an hadoop application look like or their basic components?

728

---

What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?

669

---

What is partitioning?

464

---