Most answered questions in Big Data Hadoop

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keyword and sentiment analysis. map reduce mapper combiner and reducer program

task is to  analyse a range of ...READ MORE

Mar 23, 2022 in Big Data Hadoop by anonymous
edited Mar 4 • 158 views
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0 answers

Big Data Hadoop Course worth it or not?

Big Data Hadoop course is used for ...READ MORE

Feb 23, 2022 in Big Data Hadoop by qtsinfo
edited Mar 4 • 149 views
0 votes
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what are the five v's of big data

Feb 4, 2022 in Big Data Hadoop by surbhi
 • 3,820 points • 897 views
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what is big data with examples

what is big data with examples READ MORE

Feb 1, 2022 in Big Data Hadoop by surbhi
 • 3,820 points • 788 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 • 158 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 • 956 views
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what are the characteristics of big data?

Jan 5, 2022 in Big Data Hadoop by Edureka
 • 13,690 points • 619 views
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what is big data technology?

Dec 17, 2021 in Big Data Hadoop by Edureka
 • 13,690 points • 806 views
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What is Big Data Analytics?

Dec 10, 2021 in Big Data Hadoop by surbhi
 • 3,820 points • 908 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 • 1,265 views
0 votes
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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 • 1,021 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 • 833 views
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What is Hadoop?

What is Hadoop? READ MORE

Dec 2, 2021 in Big Data Hadoop by Kavya
 • 700 points • 739 views
0 votes
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What was Hadoop named after?

Nov 25, 2021 in Big Data Hadoop by Edureka
 • 12,700 points • 930 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 • 1,445 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 • 1,395 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 • 571 views
0 votes
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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 • 144 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 • 147 views
0 votes
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 • 137 views
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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 • 147 views
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The following pairs are supposed to have one component that stores data in a distributed fashion and another component that performs computations in a distributed manner.

Choose the incorrect pair HDFS, MapReduce HBase, MapReduce HBase, Spark HDFS, ...READ MORE

Apr 10, 2021 in Big Data Hadoop by anonymous
edited Mar 4 • 173 views
0 votes
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How to Find Specific Column in Hadoop?

First let me say I am super ...READ MORE

Apr 8, 2021 in Big Data Hadoop by Brianne
edited Mar 4 • 155 views
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Hadoop : command not found

Hello people... I can access hadoop webui ...READ MORE

Mar 11, 2021 in Big Data Hadoop by talal
edited Mar 4 • 169 views
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0 answers

hdfs dfs -count -h hdfs://sandbox.hortonworks.com/demo/

I want to do the same with ...READ MORE

Mar 8, 2021 in Big Data Hadoop by 1 bihari
edited Mar 4 • 147 views
0 votes
0 answers

hdfs dfs -count -h /user/isdoc/tmcss/all_ttc_custome_list/*

I want to do the same with ...READ MORE

Mar 8, 2021 in Big Data Hadoop by 1 bihari
edited Mar 4 • 151 views
0 votes
0 answers

hdfs dfs -count -h /user/isdoc/tmcss/all_ttc_custome_list/*

I want to do the same with ...READ MORE

Mar 8, 2021 in Big Data Hadoop by 1 bihari
edited Mar 4 • 137 views
0 votes
0 answers

How to provide read-only access to hive views to end users?

I have created some hive tables in ...READ MORE

Feb 18, 2021 in Big Data Hadoop by Jnanaranjan
edited Mar 4 • 168 views
0 votes
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Hadoop MapReduce - Join of two files and Computation on grouped values

I am fairly new to Hadoop and ...READ MORE

Jan 20, 2021 in Big Data Hadoop by anonymous
edited Mar 4 • 154 views
0 votes
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Hadoop Datanode runs only once and then does not start again on Windows 10

I was trying to install Hadoop and ...READ MORE

Jan 7, 2021 in Big Data Hadoop by Mueez
edited Mar 4 • 168 views
0 votes
0 answers

What are the pros and cons of parquet format compared to other formats?

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

Dec 21, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 2,522 views
0 votes
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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 • 1,954 views
+1 vote
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How to export all collections in MongoDB?

Hi Team, I have one database in MongoDB. ...READ MORE

Dec 17, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 875 views
0 votes
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Enable HA for mapreduce jobhistory server

Hi Team, From past few days I am ...READ MORE

Sep 23, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 1,796 views
0 votes
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which version of sqoop should i use with hadoop 3.3.0 ? [closed]

I am trying to install sqoop 1.4.7 ...READ MORE

Sep 6, 2020 in Big Data Hadoop by shresht
 • 140 points
closed Sep 7, 2020 by Gitika • 1,438 views
0 votes
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How I can kill the jobs using jobID running in local mode with Hadoop

I am Running hadoop jobs in local ...READ MORE

Aug 26, 2020 in Big Data Hadoop by kamboj
 • 140 points • 2,881 views
0 votes
0 answers

Data import using sqoop to Hive

Hello Everyone, I am trying to import data ...READ MORE

Jul 3, 2020 in Big Data Hadoop by anonymous
 • 120 points • 1,311 views
0 votes
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while iam exporting data from hive to sql iam getting an error like export job failed

Jun 6, 2020 in Big Data Hadoop by anonymous
 • 120 points • 1,477 views
0 votes
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Real time access to data in hadoop

We need to store customer billing data ...READ MORE

Apr 30, 2020 in Big Data Hadoop by anonymous
 • 120 points • 1,336 views
0 votes
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Hi. I keep on encountering the follow error when running conf in flume via flume-ng at line 189. Any possible solutions?

Running FLUME agent :     class: org.apache.flume.node.Application     arguments: -n agent1 ...READ MORE

Apr 23, 2020 in Big Data Hadoop by anonymous
 • 120 points • 1,779 views
0 votes
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Grant role is getting error, while executing

Hi, I am trying to grant a role ...READ MORE

Feb 14, 2020 in Big Data Hadoop by Mahboob
 • 140 points • 1,154 views
0 votes
0 answers

Sentry: Grant role is getting error, while executing

Hi, Sentry: I am trying to grant a ...READ MORE

Feb 14, 2020 in Big Data Hadoop by Mahboob
 • 140 points • 1,393 views
0 votes
0 answers

HIve sql multiple conditions in where cluase

Hi, My table has created_date, changed_date in datetime ...READ MORE

Feb 12, 2020 in Big Data Hadoop by syam
 • 120 points
edited Feb 12, 2020 by Gitika • 2,915 views
+2 votes
0 answers

MapReduce Job is failed: "Job failed as tasks failed. failed Maps:1 failed Reduces:0"

Hi everyone This is an error that I'm ...READ MORE

Jan 17, 2020 in Big Data Hadoop by akhtar
 • 38,260 points • 1,876 views
+1 vote
0 answers

Hadoop Mapreduce : Null Pointer Exception

While running the below program, I got ...READ MORE

Dec 6, 2019 in Big Data Hadoop by Tarun
 • 160 points • 1,971 views
+2 votes
0 answers

Hello, trying to install Hadoop on single node. Error: in screenshot

READ MORE

Nov 20, 2019 in Big Data Hadoop by faris
 • 140 points • 1,399 views
+1 vote
0 answers

Oozie filter all coordinator jobs based on nominalTime

Hi Edureka team. I would like to ...READ MORE

Nov 12, 2019 in Big Data Hadoop by Thayanban
 • 130 points • 1,440 views
+1 vote
0 answers

Class not found exception in wordcount program in mapreduce

import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import java.io.IOException; import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat; import org.apache.hadoop.mapreduce.*; import org.apache.hadoop.mapreduce.lib.input.FileInputFormat; import ...READ MORE

Oct 3, 2019 in Big Data Hadoop by Tarun
 • 160 points
edited Oct 3, 2019 by Omkar • 2,253 views
+1 vote
0 answers

Missing Service request

Hello All, need assistance on one issue. ...READ MORE

Sep 17, 2019 in Big Data Hadoop by Hemanth
 • 250 points • 1,149 views
+1 vote
0 answers

Directory not found while using java -classpath

I'm using command java -classpath  ${HADOOP_CLASSPATH} -d '/home/shravanth/Desktop/wordcount/classes' ...READ MORE

Sep 14, 2019 in Big Data Hadoop by shravanth
 • 867 views
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