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

827

---

What hadoop does in safe mode?

702

---

What is inputformat in hadoop?

799

---

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

749

---

when hadoop enter in safe mode?

794

---

How to enable recycle bin or trash in hadoop?

736

---

Whats is distributed cache in hadoop?

717

---

what should be the ideal replication factor in hadoop?

697

---

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

765

---

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

770

---

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

769

---

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

714

---

What is partitioning?

510

---

Can we change the file cached by distributed cache

469

---

Why would nosql be better than using a sql database? And how much better is it?

518

---