Trending questions in Big Data Hadoop

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what is big data concept

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

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,420 points • 757 views
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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 • 2,620 views
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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 • 1,577 views
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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 • 1,429 views
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what are the problems associated with big data

what are the problems associated with big ...READ MORE

Jan 7, 2022 in Big Data Hadoop by surbhi
 • 3,820 points • 785 views
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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 • 1,278 views
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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 • 1,499 views
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what are the characteristics of big data?

Jan 5, 2022 in Big Data Hadoop by Edureka
 • 13,630 points • 519 views
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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 • 1,250 views
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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
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+1 vote
1 answer

ERROR 1064 (42000): You have an error in your SQL syntax;check the manual that corresponds to your MySQL server version for the right syntax to use near 'identified by 'Hivepass70@'' at line 1

Hi@akhtar, I don't what is wrong with your ...READ MORE

Feb 13, 2020 in Big Data Hadoop by MD
 • 95,460 points • 30,226 views
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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
 • 1,263 views
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0 answers

I want to move from Network support engineer to Talend etl tool.

I have experience of 2years of networking ...READ MORE

Jan 11, 2022 in Big Data Hadoop by anonymous
edited Mar 4 • 44 views
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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 • 939 views
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Which of the following platforms does hadoop run on?

Which of the following platforms does hadoop ...READ MORE

Dec 10, 2021 in Big Data Hadoop by Kavya
 • 700 points • 1,129 views
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What was Hadoop named after?

Nov 25, 2021 in Big Data Hadoop by Edureka
 • 12,690 points • 771 views
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2 answers

What is Hadoop used for?

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

Dec 10, 2021 in Big Data Hadoop by CoderGirl
 • 500 points • 1,160 views
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what is big data technology?

Dec 17, 2021 in Big Data Hadoop by Edureka
 • 13,630 points • 706 views
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What is Hadoop Cluster?

Cluster is a collection of something, a ...READ MORE

Dec 9, 2021 in Big Data Hadoop by Kavya
 • 700 points • 899 views
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What is Big Data Analytics?

Dec 10, 2021 in Big Data Hadoop by surbhi
 • 3,820 points • 779 views
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What is Hadoop Cluster?

What is Hadoop Cluster? READ MORE

Dec 2, 2021 in Big Data Hadoop by Kavya
 • 700 points • 690 views
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What is Hadoop?

What is Hadoop? READ MORE

Dec 2, 2021 in Big Data Hadoop by Kavya
 • 700 points • 655 views
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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 • 860 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 • 781 views
0 votes
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WARNING: Use of this script to execute namenode is deprecated. WARNING:

am getting the following errot when i ...READ MORE

Nov 10, 2021 in Big Data Hadoop by anonymous
 • 140 points • 1,258 views
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hadoop namenode ~format

When i type  hadoop namenode ~format WARNING: Use ...READ MORE

Nov 10, 2021 in Big Data Hadoop by anonymous
 • 140 points • 1,206 views
0 votes
9 answers

Is there any way to check which Hadoop daemons are running?

use jps command, It will show all the running ...READ MORE

Dec 27, 2018 in Big Data Hadoop by Rakesh
 • 160 points • 47,511 views
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0 answers

trying to execute python wordcount program but command stuck

HI  I am learning Hadoop, I have tried ...READ MORE

Oct 10, 2021 in Big Data Hadoop by Yogeshwar
 • 120 points • 485 views
0 votes
2 answers

How to know Hive and Hadoop versions from command prompt?

Hi, Hadoop and hive have their individual commands. ...READ MORE

Dec 18, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 13,080 views
0 votes
1 answer

How to uninstall Yarn?

This is maybe because you didn't use ...READ MORE

Feb 5, 2019 in Big Data Hadoop by Omkar
 • 69,220 points • 41,260 views
0 votes
1 answer

How to create an empty file in Hadoop?

Hi@akhtar, You can create an empty file in ...READ MORE

Oct 13, 2020 in Big Data Hadoop by MD
 • 95,460 points • 14,277 views
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1 answer

How to rename the Hive table?

Hi@akhtar, You can rename the table name in ...READ MORE

Oct 19, 2020 in Big Data Hadoop by MD
 • 95,460 points • 13,816 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
 • 95,460 points • 10,595 views
0 votes
0 answers

Failed to retrieve connection info for urlid "inputfile".Cause :please set up authentication file '/home/hduser/sqltool.rc'

i am trying to run a jar ...READ MORE

Aug 19, 2021 in Big Data Hadoop by tasneem
edited Mar 4 • 45 views
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hi, When I run hdfs namenode -format to format namenode, I am getting this error:

2021-08-13 17:50:25,851 ERROR namenode.NameNode: Failed to start ...READ MORE

Aug 14, 2021 in Big Data Hadoop by anonymous
edited Mar 4 • 44 views
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1 answer

ERROR: Cannot set priority of datanode process

Hi@akhtar, You need to set JAVA_HOME and HADOOP_HOME ...READ MORE

Oct 15, 2020 in Big Data Hadoop by MD
 • 95,460 points • 12,877 views
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0 answers

All datanodes are running but cannot see as live node in Ui portal

Hi I am deploying hdfs in K8s ...READ MORE

Jul 20, 2021 in Big Data Hadoop by sayali
edited Mar 4 • 45 views
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1 answer

How can you change a column data type in Hive?

Hi, By using this command below one can ...READ MORE

Jun 24, 2019 in Big Data Hadoop by Gitika
 • 65,770 points • 32,450 views
0 votes
1 answer

I am getting this log4j:ERROR setFile(null,true) call failed. java.io.FileNotFoundException: /ozone.log (Read-only file system)

Hi@Raj, I think you need to provide permission ...READ MORE

Dec 4, 2020 in Big Data Hadoop by MD
 • 95,460 points • 9,223 views
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1 answer

How do you find an HDFS path URL?

Hi@akhtar, The Hadoop configuration file is default located ...READ MORE

Feb 28, 2020 in Big Data Hadoop by MD
 • 95,460 points • 21,154 views
0 votes
2 answers

How do I output the results of a HiveQL query to CSV?

Hi, The insert overwrite directory is running in ...READ MORE

Dec 18, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 8,958 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
 • 95,460 points • 7,928 views
0 votes
1 answer

ERROR 1227 (42000): Access denied; you need (at least one of) the CREATE USER privilege(s) for this operation.

Hi, You can follow some steps to remove ...READ MORE

Jun 19, 2019 in Big Data Hadoop by Gitika
 • 65,770 points • 31,663 views
0 votes
0 answers

Need help to solve unrecognized arg in sqoop

//command sqoop job \ --create myjob \ --import \ --connect jdbc:mysql://localhost/sqoop ...READ MORE

Jun 5, 2021 in Big Data Hadoop by Nirav
edited Mar 4 • 49 views
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1 answer

How to set variables in HIVE scripts

You need to use the special hiveconf for variable ...READ MORE

Nov 20, 2020 in Big Data Hadoop by Gitika
 • 65,770 points • 8,482 views
0 votes
1 answer

nodetool: Failed to connect to '127.0.0.1:7199' - ConnectException: 'Connection refused (Connection refused)'.

Hi@akhtar, To avoid this error, You have to ...READ MORE

Apr 1, 2020 in Big Data Hadoop by MD
 • 95,460 points • 18,419 views
0 votes
0 answers

What is the difference between partitioning and bucketing a table in Hive ?

Hi Team, I am new to Hive. I ...READ MORE

Dec 20, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,766 views
+1 vote
2 answers

How to delete and update a record in Hive?

Hi, Earlier, there was no operation supported for ...READ MORE

Dec 18, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 6,974 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
 • 95,460 points • 6,138 views
0 votes
0 answers

How Pig programming gets converted into MapReduce jobs?

Could you please give me a brief ...READ MORE

Feb 21, 2019 in Big Data Hadoop by Neha
 • 6,300 points • 941 views
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