Most voted questions in Big Data Hadoop

0 votes
1 answer

Copy file from HDFS to the local file system

There are two possible ways to copy ...READ MORE

Mar 27, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 16,484 views
0 votes
1 answer

How can we send data from MongoDB to Hadoop?

The MongoDB Connector for Hadoop reads data ...READ MORE

Mar 27, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,896 views
0 votes
1 answer

Can we use Apache Sqoop and Hive both together? What is the difference between the two?

Yes, you can. In fact many people ...READ MORE

Mar 26, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,559 views
0 votes
7 answers

How to run a jar file in hadoop?

I used this command to run my ...READ MORE

Dec 10, 2018 in Big Data Hadoop by Dasinto
 • 25,645 views
0 votes
1 answer

Hadoop on cassandra database

Regarding your question - there is a ...READ MORE

Mar 26, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 488 views
0 votes
1 answer

Types of Hadoop Clusters

Below is the difference given between Standalone, ...READ MORE

Mar 26, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 3,575 views
0 votes
1 answer

Which latest Hadoop version is stable?

Try Checking this website: http://hadoop.apache.org/releases.html. Here you will ...READ MORE

Mar 26, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 4,947 views
0 votes
1 answer

What is hadoop.tmp.dir ?

hadoop.tmp.dir is used as the base for temporary ...READ MORE

Mar 26, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 6,262 views
0 votes
1 answer

Relationship between Spark, Hadoop and Cassandra?

Spark is a distributed in memory processing ...READ MORE

Mar 26, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,019 views
0 votes
1 answer

Joining Multiple Spark Dataframes

You can run the below code to ...READ MORE

Mar 26, 2018 in Big Data Hadoop by Bharani
 • 4,660 points • 2,645 views
0 votes
1 answer

Hadoop vs Data Lake

A data lake is a storage repository that holds ...READ MORE

Mar 26, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,661 views
0 votes
1 answer

Testing methods used by a Hadoop developer ?

As such, there is no exact way ...READ MORE

Mar 26, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 627 views
0 votes
1 answer

Hadoop MapReduce vs MongoDB MapReduce

Hadoop vs MongoDB MR: 1) Hadoop's MR can ...READ MORE

Mar 26, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,196 views
0 votes
0 answers

Docker: Access a service on host from a container

Mar 26, 2018 in Big Data Hadoop by shubham
 • 7,340 points • 363 views
0 votes
1 answer

How to set a custom install directory for a deb package with fpm

Here's something that you can try... the last ...READ MORE

Mar 26, 2018 in Big Data Hadoop by Amrinder
 • 140 points • 1,145 views
0 votes
1 answer

How can I get the respective Bitcoin value for an input in USD when using c#

Simply make call to server and parse ...READ MORE

Mar 25, 2018 in Big Data Hadoop by charlie_brown
 • 7,720 points • 778 views
0 votes
1 answer

Hadoop security GroupMappingServiceProvider exception for Spark job via Dataproc API

One of the reason behin you getting ...READ MORE

Mar 23, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 735 views
0 votes
3 answers

Can we run Spark without using Hadoop?

No, you can run spark without hadoop. ...READ MORE

May 7, 2019 in Big Data Hadoop by pradeep
 • 1,894 views
0 votes
3 answers

What are differences between NameNode and Secondary NameNode?

File metadata information is stored by Namenode ...READ MORE

Apr 8, 2019 in Big Data Hadoop by anonymous
 • 14,331 views
0 votes
1 answer

Access DFS through Java API

It is because, may be you are ...READ MORE

Mar 23, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,731 views
0 votes
1 answer

What is Hue?

As you said, Hue is a web ...READ MORE

Mar 22, 2018 in Big Data Hadoop by Ashish
 • 2,650 points
edited Mar 22, 2018 by Ashish • 3,404 views
0 votes
1 answer

How to integrate Hadoop with Elasticsearch?

The HDFS snapshot/restore plugin comes in three ...READ MORE

Mar 22, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,227 views
0 votes
1 answer

Is there a way to copy data from one one Hadoop distributed file system(HDFS) to another HDFS?

The distributed copy command, distcp, is a ...READ MORE

Mar 22, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 9,497 views
0 votes
1 answer

What is ClickStream Data Analysis

On a Web site, clickstream analysis (also ...READ MORE

Mar 22, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 1,023 views
0 votes
1 answer

Is there any Relationship between Hadoop and Databases?

As such, there is no relationship between ...READ MORE

Mar 22, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 560 views
0 votes
1 answer

How to create a FileSystem object that can be used for reading from and writing to HDFS?

Read operation on HDFS In order to read ...READ MORE

Mar 21, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points
edited Mar 22, 2018 by nitinrawat895 • 2,682 views
0 votes
1 answer

How to install and configure a multi-node Hadoop cluster?

I would recommend you to install Cent ...READ MORE

Mar 22, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 2,141 views
0 votes
1 answer

How Impala is fast compared to Hive in terms of query response?

Impala provides faster response as it uses MPP(massively ...READ MORE

Mar 21, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,893 views
0 votes
1 answer

How to install Hadoop on Ubuntu?

You can refer to this blog by ...READ MORE

Mar 21, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,214 views
0 votes
13 answers

What is the difference between Hadoop/HDFS & HBase?

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

Apr 26, 2019 in Big Data Hadoop by Arihar
 • 160 points • 32,324 views
0 votes
1 answer

How can I download hadoop documentation for a specific version?

You can go through this SVN link:- ...READ MORE

Mar 22, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 623 views
0 votes
1 answer

Unable to install RHadoop Packages?

I would recommend you to follow https://github.com/RevolutionAnalytics/rhadoop/wiki/Installing-RHadoop-on-RHEL ...READ MORE

Mar 22, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 1,399 views
0 votes
1 answer

How to run example codes of Hadoop Definitive Guide book?

You will find multiple git repositories where ...READ MORE

Mar 21, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 857 views
0 votes
1 answer

Where can I find hadoop-streaming.jar JAR file?

You will find the streaming jar here: ...READ MORE

Mar 21, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 6,523 views
0 votes
1 answer

How to run Hadoop in Docker containers?

Hi, You can run Hadoop in Docker container. Follow ...READ MORE

Jan 24, 2020 in Big Data Hadoop by MD
 • 95,440 points • 1,821 views
0 votes
1 answer

How to get started with Hadoop?

Well, hadoop is actually a framework that ...READ MORE

Mar 21, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 921 views
0 votes
1 answer

What do we exactly mean by “Hadoop” – the definition of Hadoop?

The official definition of Apache Hadoop given ...READ MORE

Mar 16, 2018 in Big Data Hadoop by Shubham
 • 1,634 views
0 votes
1 answer

Why does my yarn application not have logs even with logging enabled?

yarn application -list command shows you all ...READ MORE

Mar 19, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 4,595 views
0 votes
1 answer

How can I download only hdfs and not hadoop?

No, you cannot download HDFS alone because ...READ MORE

Mar 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,124 views
0 votes
3 answers

What is Hive? Is Hive a database?

Hive is a data Warehouse infrastructure/system built ...READ MORE

Jul 1, 2019 in Big Data Hadoop by Ved Gupta
 • 22,985 views
0 votes
10 answers

What is the difference between Mongodb and Hadoop?

MongoDB is a NoSQL database, whereas Hadoop is ...READ MORE

Jun 20, 2018 in Big Data Hadoop by jenny_code
 • 11,377 views
0 votes
1 answer

How to sync Hadoop configuration files to multiple nodes?

For syncing Hadoop configuration files, you have ...READ MORE

Jun 21, 2018 in Big Data Hadoop by HackTheCode
 • 1,184 views
0 votes
1 answer

The file exists before processing with hadoop command

Took session and it got resolved. READ MORE

Dec 18, 2017 in Big Data Hadoop by Sudhir
 • 1,610 points • 821 views
–1 vote
1 answer

Does Hadoop merge the output files after reduce phase?

No, the files after the reduce phase are ...READ MORE

Jan 23, 2019 in Big Data Hadoop by Omkar
 • 69,210 points • 1,239 views
–1 vote
1 answer

Hdfs command to see available free space in hdfs

Yes, you check the free space using ...READ MORE

Jan 22, 2019 in Big Data Hadoop by Omkar
 • 69,210 points • 472 views
–1 vote
1 answer

"main" java.lang.ClassNotFoundException: WordCount

When you are running a jar file ...READ MORE

Jan 22, 2019 in Big Data Hadoop by Omkar
 • 69,210 points • 4,175 views
–1 vote
1 answer

WARN util.NativeCodeLoader: Unable to load native-hadoop library

To remove this warning, you can use:  hdfs ...READ MORE

Jan 22, 2019 in Big Data Hadoop by Omkar
 • 69,210 points • 1,720 views
–1 vote
1 answer

Who will setup multimode and single node modes?

Cluster management is something that is generally ...READ MORE

Jan 21, 2019 in Big Data Hadoop by Omkar
 • 69,210 points • 328 views
–1 vote
1 answer

Unable to execute the jar file wordcount.

I see that the command that you ...READ MORE

Jan 21, 2019 in Big Data Hadoop by Omkar
 • 69,210 points • 2,615 views
–1 vote
1 answer

Hadoop MapReduce word count program failed

Seems like Firewall is blocking the connection. ...READ MORE

Jan 21, 2019 in Big Data Hadoop by Omkar
 • 69,210 points • 1,011 views
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