What is formatting of the dfs?

772

---

In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?

680

---

Does this lead to security issues?

699

---

How to change from su to cloudera?

671

---

Why password is needed in ssh localhost?

734

---

What happens to a namenode, when job tracker is down?

695

---

What does the command mapred.job.tracker do?

721

---

How to come out of the insert mode?

717

---

What is the full form of fsck?

668

---

Why do we need a password-less ssh in fully distributed environment?

678

---

Can you give us some more details about ssh communication between masters and the slaves?

652

---

Can you tell us more about ssh?

677

---

What is shark?

276

---

Name a few commonly used spark ecosystems?

268

---

What is hive on spark?

372

---