Trending questions in Big Data Hadoop

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what is big data technology

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

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,420 points • 1,274 views
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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 • 1,199 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 • 2,148 views
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What is HDFS?

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

Dec 24, 2021 in Big Data Hadoop by Kavya
 • 700 points • 2,081 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 • 1,259 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 • 1,777 views
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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 • 31,005 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 answer

what was Hadoop written in?

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

Dec 14, 2021 in Big Data Hadoop by Edureka
 • 12,700 points • 1,927 views
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what is hadoop ecosystem?

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

Dec 20, 2021 in Big Data Hadoop by Kavya
 • 700 points • 1,767 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
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what are the characteristics of big data?

Jan 5, 2022 in Big Data Hadoop by Edureka
 • 13,730 points • 721 views
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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 • 1,409 views
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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 • 299 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 • 1,746 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 • 1,459 views
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What was Hadoop named after?

Nov 25, 2021 in Big Data Hadoop by Edureka
 • 12,700 points • 1,065 views
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what is big data technology?

Dec 17, 2021 in Big Data Hadoop by Edureka
 • 13,730 points • 905 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 • 1,239 views
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What is Big Data Analytics?

Dec 10, 2021 in Big Data Hadoop by surbhi
 • 3,820 points • 1,128 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 • 1,066 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
 • 12,700 points • 1,331 views
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1 answer

What is Big Data?

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

Nov 24, 2021 in Big Data Hadoop by Edureka
 • 12,700 points • 1,257 views
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0 answers

What is Hadoop?

What is Hadoop? READ MORE

Dec 2, 2021 in Big Data Hadoop by Kavya
 • 700 points • 835 views
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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 • 1,698 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 • 1,567 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 • 49,021 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 • 14,518 views
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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 • 744 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
 • 69,180 points • 42,104 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 • 14,984 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 • 14,577 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 • 11,165 views
0 votes
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 • 13,832 views
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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 • 277 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 • 286 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
 • 65,730 points • 33,479 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 • 242 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 • 22,073 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 • 9,742 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 • 9,514 views
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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
 • 65,730 points • 32,377 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 • 8,613 views
0 votes
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
 • 65,730 points • 9,679 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 • 19,189 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 • 232 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 • 7,530 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 • 2,236 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 • 6,788 views
+2 votes
4 answers

Datanode process not running in Hadoop

Run the following commands: Stop-all.sh start-dfs.sh start-yarn.sh mr-jobhistory-daemon.sh ...READ MORE

Oct 25, 2018 in Big Data Hadoop by Anand
 • 20,628 views
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