Most answered questions in Big Data Hadoop

0 votes
2 answers

How can I list NameNode & DataNodes from any machine in the Hadoop cluster?

You can browse hadoop page from any ...READ MORE

Jan 23, 2020 in Big Data Hadoop by MD
 • 95,440 points • 11,154 views
0 votes
2 answers

How to exit NameNode safe mode?

hadoop dfsadmin -safemode leave READ MORE

Apr 11, 2019 in Big Data Hadoop by anonymous
 • 3,519 views
0 votes
2 answers

Meaning of fs.defaultFS property in core-site.xml in hadoop

It allows to run dfs commands more ...READ MORE

Jan 22, 2020 in Big Data Hadoop by MD
 • 95,440 points • 7,064 views
0 votes
2 answers

Function of “hadoop namenode -format” command

Namenode is the node in the Hadoop ...READ MORE

Feb 4, 2019 in Big Data Hadoop by Kanika
 • 20,579 views
0 votes
2 answers

Hadoop query regarding setJarByClass method of Job class

http://www.bigdataspeak.com/2014/06/what-is-need-to-use-jobsetjarbycla ...READ MORE

Feb 7, 2019 in Big Data Hadoop by siri
 • 2,035 views
0 votes
2 answers

start-dfs.sh command is not starting Hadoop JobTracker & TaskTracker

On which version of hadoop do you ...READ MORE

Jul 24, 2019 in Big Data Hadoop by Lokesh Singh
 • 3,413 views
0 votes
2 answers

Command to check the Hadoop distribution as well as it’s version which is installed in my cluster

One of the options to check the ...READ MORE

Apr 15, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 5,278 views
+1 vote
2 answers

How to authenticate username & password while using Connector for Cloudera Hadoop in Tableau?

Hadoop server installed was kerberos enabled server. ...READ MORE

Aug 21, 2018 in Big Data Hadoop by Priyaj
 • 58,090 points • 1,388 views
0 votes
2 answers

What is a container in YARN?

Yarn container are a process space where ...READ MORE

May 2, 2020 in Big Data Hadoop by anonymous
 • 6,317 views
+1 vote
2 answers

Failed to restart Hadoop namenode using cloudera quickstart

You can use Cloudera Manager to manage ...READ MORE

Mar 19, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points
edited Jun 9, 2020 by MD • 3,821 views
+1 vote
2 answers

Execute Pig Script from Grunt Shell

From your current directory run  pig -x local Then ...READ MORE

Oct 25, 2018 in Big Data Hadoop by Kunal
 • 5,700 views
0 votes
1 answer

What are the five v's of big data

Big data is a collection of data ...READ MORE

Feb 4, 2022 in Big Data Hadoop by surbhi
 • 3,810 points • 1,502 views
0 votes
1 answer

What is big data engineering

Data engineer roles have recently become more ...READ MORE

Feb 4, 2022 in Big Data Hadoop by surbhi
 • 3,810 points • 644 views
0 votes
1 answer

what does velocity in big data mean

Velocity in big data refers to the ...READ MORE

Feb 3, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 3,164 views
0 votes
1 answer

what is big data hadoop

The Hadoop operating system is used to ...READ MORE

Feb 3, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 457 views
0 votes
1 answer

what is big data technology

Big data refers to extremely large, and ...READ MORE

Feb 4, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 454 views
0 votes
1 answer

what is big data concept

Big data refers to extremely large, and ...READ MORE

Feb 4, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 365 views
0 votes
1 answer

what are the different features of big data analytics

What are the different features of big ...READ MORE

Feb 4, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 658 views
0 votes
1 answer

what is big data with examples

Big data refers to extremely large, and ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 586 views
0 votes
1 answer

what is big data technology

Big data refers to extremely large, and ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 288 views
0 votes
1 answer

what is big data concept

Big data refers to extremely large, and ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 302 views
0 votes
1 answer

what are the different features of big data analytics

Features of big data analytics are- Velocity The pace ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 724 views
0 votes
1 answer

what is pig in big data?

Pig is a high-level programming language for ...READ MORE

Jan 7, 2022 in Big Data Hadoop by Edureka
 • 12,690 points • 482 views
0 votes
1 answer

What is MapReduce?

MapReduce is a programming model and implementation ...READ MORE

Dec 24, 2021 in Big Data Hadoop by Kavya
 • 700 points • 540 views
0 votes
1 answer

What is HDFS?

HDFS is a distributed file system that ...READ MORE

Dec 24, 2021 in Big Data Hadoop by Kavya
 • 700 points • 476 views
0 votes
1 answer

which of the following says hadoop provides does pig break?

Apache Pig is a platform for analyzing ...READ MORE

Dec 24, 2021 in Big Data Hadoop by Kavya
 • 700 points • 634 views
0 votes
1 answer

Which of the following is not a hadoop output format?

The Hadoop Output Format checks the Output ...READ MORE

Dec 20, 2021 in Big Data Hadoop by Kavya
 • 700 points • 1,410 views
0 votes
1 answer

which of the following are hadoop built in counters?

MapReduce in Hadoop maintains some built-in counters ...READ MORE

Dec 20, 2021 in Big Data Hadoop by Kavya
 • 700 points • 1,564 views
0 votes
1 answer

what is hadoop ecosystem?

Hadoop Ecosystem is neither a programming language ...READ MORE

Dec 20, 2021 in Big Data Hadoop by Kavya
 • 700 points • 449 views
0 votes
1 answer

when is hadoop useful for an application?

Hadoop is a software framework for storing ...READ MORE

Dec 20, 2021 in Big Data Hadoop by CoderGirl
 • 500 points • 374 views
0 votes
1 answer

what does velocity in big data mean?

Velocity refers to the speed at which ...READ MORE

Dec 14, 2021 in Big Data Hadoop by Edureka
 • 12,690 points • 1,637 views
0 votes
1 answer

what was Hadoop written in?

The Hadoop framework is primarily developed in ...READ MORE

Dec 14, 2021 in Big Data Hadoop by Edureka
 • 12,690 points • 586 views
0 votes
1 answer

what is hbase in hadoop?

HBase is an open-source non-relational distributed database ...READ MORE

Dec 14, 2021 in Big Data Hadoop by anonymous
 • 610 views
0 votes
1 answer

What is apache hadoop?

Apache Hadoop is an open-source framework that ...READ MORE

Dec 14, 2021 in Big Data Hadoop by anonymous
 • 564 views
0 votes
1 answer

Which of the following is the daemon of Hadoop?

Hadoop is an open-source software framework for ...READ MORE

Dec 10, 2021 in Big Data Hadoop by CoderGirl
 • 500 points • 5,096 views
0 votes
1 answer

Which among the following are the Features of Hadoop?

Apache Hadoop is a collection of open-source ...READ MORE

Dec 9, 2021 in Big Data Hadoop by Kavya
 • 700 points • 1,963 views
0 votes
1 answer

What is the extension of archive file created in Hadoop?

Hadoop archive is a facility which packs ...READ MORE

Dec 9, 2021 in Big Data Hadoop by Kavya
 • 700 points • 1,430 views
0 votes
1 answer

What does Commodity Hardware in Hadoop World mean?

An important component of the Hadoop Ecosystem ...READ MORE

Dec 9, 2021 in Big Data Hadoop by Kavya
 • 700 points • 3,891 views
0 votes
1 answer

What was Hadoop written in?

The Hadoop framework is mostly written in ...READ MORE

Dec 9, 2021 in Big Data Hadoop by Kavya
 • 700 points • 2,541 views
0 votes
1 answer

What was Hadoop named after?

The creator of Hadoop, Doug Cutting named ...READ MORE

Dec 10, 2021 in Big Data Hadoop by CoderGirl
 • 500 points • 2,627 views
0 votes
1 answer

What is Big Data?

Big data is a term that refers ...READ MORE

Nov 24, 2021 in Big Data Hadoop by Edureka
 • 12,690 points • 364 views
0 votes
1 answer

What is Hadoop?

Hadoop is simply a free and open-source ...READ MORE

Nov 24, 2021 in Big Data Hadoop by Edureka
 • 12,690 points • 358 views
0 votes
1 answer

What is the purpose of shuffling and sorting phase in the reducer in Map Reduce?

Hi@akhtar, Shuffle phase in Hadoop transfers the map output from ...READ MORE

Dec 20, 2020 in Big Data Hadoop by MD
 • 95,440 points • 6,457 views
+1 vote
1 answer

ssh: connect to host localhost port 22: Connection refused in Hadoop.

Hi@akhtar, You need to uninstall SSH and reinstall ...READ MORE

Dec 18, 2020 in Big Data Hadoop by MD
 • 95,440 points • 9,663 views
0 votes
1 answer

How to show all partitions of a table in Hive?

Hi@akhtar, You can list down all the partitions ...READ MORE

Dec 18, 2020 in Big Data Hadoop by MD
 • 95,440 points • 4,870 views
+1 vote
1 answer

How to use HDFStore to hold large datasets?

Hi@akhtar, You can store your datasets from pandas ...READ MORE

Dec 17, 2020 in Big Data Hadoop by MD
 • 95,440 points • 848 views
0 votes
1 answer

Is there any way to get the column name along with the output while execute any query in Hive?

If we want to see the column ...READ MORE

Dec 8, 2020 in Big Data Hadoop by Gitika
 • 65,910 points • 900 views
0 votes
1 answer

Where does hive stores its table?

With an external table the data itself ...READ MORE

Dec 7, 2020 in Big Data Hadoop by Gitika
 • 65,910 points • 528 views
0 votes
1 answer

How input splits are done when 2 blocks are spread across different nodes?

Hadoop doesn't copy the blocks to the ...READ MORE

Dec 7, 2020 in Big Data Hadoop by Gitika
 • 65,910 points • 956 views
0 votes
1 answer

How do I split a string on a delimiter in Bash?

You can set the internal field separator (IFS) variable, ...READ MORE

Dec 7, 2020 in Big Data Hadoop by Gitika
 • 65,910 points • 943 views
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