Answer / Nirvesh Kumar

JPS (Java Process Status) is a command-line tool provided by Java that lists all currently running Java processes on a given machine. In Hadoop, JPS is used to check the status of various Hadoop services like the NameNode, DataNodes, JobTracker, and TaskTrackers. It helps in troubleshooting issues related to Hadoop service startup or failure.

Explain how can you check whether namenode is working beside using the jps command?

1 Answers  

---

What is the command to change the replication factor ?

1 Answers  

---

Mention what are the three modes in which hadoop can be run?

1 Answers  

---

What are the tools used in big data?

1 Answers  

---

Is it possible to rename the output file, and if so, how?

1 Answers  

---

How to debug Hadoop code?

1 Answers  

---

What is tasktracker in hadoop?

1 Answers  

---

What is pseudo-distributed mode?

1 Answers  

---

Explain in which directory hadoop is installed?

1 Answers  

---

Can you explain bloommapfile.

1 Answers  

---

Define data cleansing?

1 Answers  

---

What is Small File Problem in Hadoop? How can it be resolved?

1 Answers  

---