How to restart NameNode or all the daemons in Hadoop?

549

---

What does jps command do in Hadoop?

659

---

What is fsck?

649

---

How to debug Hadoop code?

540

---

Explain Hadoop streaming?

482

---

What does hadoop-metrics.properties file do?

534

---

How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?

427

---

What are the different commands used to startup and shutdown Hadoop daemons?

538

---

What is configured in /etc/hosts and what is its role in setting Hadoop cluster?

534

---

How is the splitting of file invoked in Hadoop framework?

522

---

Is it possible to provide multiple input to Hadoop? If yes then how?

508

---

Is it possible to have hadoop job output in multiple directories? If yes, how?

456

---

What is the default replication factor and how will you change it?

539

---

Explain Hadoop Archives?

543

---

Explain the Single point of Failure in Hadoop?

483

---