Most viewed questions in Big Data Hadoop

0 votes
1 answer

How to create table inside database in MySql in Linux?

We can use this command to create ...READ MORE

Apr 16, 2019 in Big Data Hadoop by Gitika
• 65,910 points
638 views
0 votes
1 answer

Mention how many InputSplits is made by a Hadoop Framework?

Hey, Hadoop will make 5 splits 1 split for ...READ MORE

Jun 10, 2019 in Big Data Hadoop by Gitika
• 65,910 points
637 views
0 votes
1 answer

why do we need MaPReduce in BigData Hadoop?

Hi, As we know Hadoop provides Hdfs as ...READ MORE

Feb 4, 2020 in Big Data Hadoop by MD
• 95,440 points
636 views
0 votes
1 answer

submitJob method in JobClient of Hadoop throws null pointer

I had this problem as well. But when ...READ MORE

Sep 18, 2018 in Big Data Hadoop by Neha
• 6,300 points
636 views
0 votes
0 answers

Number of tasks submitted and executed within the day in hadoop

Tasks Write a software application, service, daemon or ...READ MORE

Dec 12, 2018 in Big Data Hadoop by Irfan
• 120 points
635 views
0 votes
1 answer

How to include third party library in Python MapReduce?

Problem has been solved by zipimport. Then I zip chardet to ...READ MORE

Nov 27, 2018 in Big Data Hadoop by Frankie
• 9,830 points
634 views
0 votes
1 answer

Urgently Want dataset

Hi, @Amit, Regarding your query on Datasets on (merchant ...READ MORE

Sep 21, 2020 in Big Data Hadoop by Gitika
• 65,910 points
632 views
0 votes
1 answer

Which is better Neo4j or HBASE ?

For your requirement, I would recommend you ...READ MORE

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

When was the first version of Hadoop released?

September 4, 2007 READ MORE

Apr 20, 2018 in Big Data Hadoop by kurt_cobain
• 9,390 points
631 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
629 views
0 votes
1 answer

How does a name-node understand by itself that it is facing a failure?

ZooKeeper-Failover-Controller or in short ZKFC is the ...READ MORE

Mar 27, 2019 in Big Data Hadoop by nitinrawat895
• 11,380 points
627 views
–1 vote
1 answer

Spark multiple version without major version

Yes. It is not necessary to set ...READ MORE

Dec 27, 2018 in Big Data Hadoop by Omkar
• 69,230 points
627 views
0 votes
1 answer

How to connect Hadoop WebUI?

Hi@akhtar, You can connect your Hadoop Cluster with ...READ MORE

Sep 25, 2020 in Big Data Hadoop by MD
• 95,440 points
626 views
0 votes
1 answer

Amazon AWS Web Services

If you want to limit your hadoop ...READ MORE

Jul 8, 2019 in Big Data Hadoop by ravikiran
• 4,620 points
625 views
0 votes
1 answer

How to turn on REST gateway impersonation in HBase?

Hey, To turn on REST gateway impersonation, we ...READ MORE

May 31, 2019 in Big Data Hadoop by Gitika
• 65,910 points
624 views
0 votes
1 answer

User admin configuration in Hue

By default, Hue assigns the manually created ...READ MORE

May 27, 2019 in Big Data Hadoop by Rishi
624 views
0 votes
1 answer

Help me out to download hadoop of a specific version

I understand your needs. I would suggest you ...READ MORE

May 15, 2019 in Big Data Hadoop by ravikiran
• 4,620 points
624 views
0 votes
1 answer

What are Apache pig running modes?

Hey, You can run Apache pig runs in ...READ MORE

May 7, 2019 in Big Data Hadoop by Gitika
• 65,910 points

edited May 8, 2019 by Gitika 624 views
0 votes
1 answer

Is no of block equal no of i/p split, no of container, no of mapper ?

Split size is approximately equal to block ...READ MORE

Jun 20, 2019 in Big Data Hadoop by Ron
623 views
0 votes
1 answer

How to install Hadoop on Ubuntu?

You can manually create a file hadoop-env.sh ...READ MORE

Jul 5, 2019 in Big Data Hadoop by ravikiran
• 4,620 points
622 views
–1 vote
1 answer

When to use Sqoop?

Sqoop is used to transfer any data ...READ MORE

Dec 31, 2018 in Big Data Hadoop by Omkar
• 69,230 points
621 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
620 views
0 votes
1 answer

How to perform joins in Apache hive?

Hey, Join operation will work always with two ...READ MORE

May 16, 2019 in Big Data Hadoop by Gitika
• 65,910 points
616 views
0 votes
1 answer

Why Count keyword is used in HBase?

Hey, An aggregate function that returns the number ...READ MORE

May 24, 2019 in Big Data Hadoop by Gitika
• 65,910 points
614 views
0 votes
1 answer
0 votes
1 answer

How does Hadoop accesses the files which are distributed among different boundaries?

Hadoop's MapReduce function does not work on ...READ MORE

May 7, 2019 in Big Data Hadoop by ravikiran
• 4,620 points
613 views
0 votes
1 answer

What is relation keyword in pig?

Hey, A relation is a bag of tuples. ...READ MORE

May 6, 2019 in Big Data Hadoop by Gitika
• 65,910 points
613 views
0 votes
1 answer

How to find HDFS free space from command line?

Hi@akhtar, You can find the free space from ...READ MORE

Oct 5, 2020 in Big Data Hadoop by MD
• 95,440 points
610 views
+1 vote
2 answers

Error: com/eng/mr/WordCountDriver : Unsupported major.minor version 52.0

The reason why you get this error ...READ MORE

Aug 6, 2019 in Big Data Hadoop by Venkita
• 240 points
610 views
0 votes
1 answer
0 votes
1 answer

Installing WebHCat on Ubuntu

To install WebHCat on ubuntu using apt-get, ...READ MORE

Jun 3, 2019 in Big Data Hadoop by Richard
610 views
0 votes
1 answer

Explain to me how to transfer data between Azure tables and Hadoop on Azure

I shall redirect you to a link ...READ MORE

Jul 4, 2019 in Big Data Hadoop by ravikiran
• 4,620 points
609 views
0 votes
1 answer

How to set history server api in Hue?

You have to set this in hue configuration ...READ MORE

May 30, 2019 in Big Data Hadoop by jana
609 views
0 votes
1 answer

How does the number of groups affect the cost of the shuffling phase?

Shuffle happens with key-value pairs. So, when ...READ MORE

Jan 22, 2019 in Big Data Hadoop by Omkar
• 69,230 points
609 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
608 views
0 votes
1 answer

Default sqoop validator and how to change?

The default validator used is  org.apache.sqoop.validation.RowCountValidator. If you ...READ MORE

May 15, 2019 in Big Data Hadoop by Sharan
608 views
0 votes
1 answer

Hadoop MapReduce intermediate output

keep.task.files.pattern parameter can be used to keep the ...READ MORE

Nov 16, 2018 in Big Data Hadoop by Frankie
• 9,830 points
608 views
0 votes
1 answer

What are the security guidelines for Impala?

Security Guidelines for Impala: The following are the ...READ MORE

Aug 6, 2018 in Big Data Hadoop by kurt_cobain
• 9,390 points
606 views
0 votes
1 answer

Why tuple keywords is used in pig?

Hey, A tuple is a set of field, ...READ MORE

May 6, 2019 in Big Data Hadoop by Gitika
• 65,910 points
605 views
0 votes
1 answer

Hadoop on OSX “Unable to load realm info from SCDynamicStore”

Add the following to your hadoop-env.sh file: export ...READ MORE

Oct 8, 2018 in Big Data Hadoop by Omkar
• 69,230 points
604 views
0 votes
1 answer

Hadoop tools/eco-system version compatibility doubt

Below are the versions which can be used ...READ MORE

Jan 31, 2019 in Big Data Hadoop by Omkar
• 69,230 points
603 views
0 votes
1 answer

How to assign server access to client(s) through NFS export file?

Hi, You can create the export folder, you will ...READ MORE

Aug 5, 2019 in Big Data Hadoop by Gitika
• 65,910 points
602 views
0 votes
1 answer
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
602 views
0 votes
1 answer

Using Hadoop for Data Analytics.

Yes, your approach is correct - you ...READ MORE

Sep 28, 2018 in Big Data Hadoop by Frankie
• 9,830 points
601 views
0 votes
1 answer

which one to choose for log analysis?

It is not about that you can ...READ MORE

Apr 6, 2018 in Big Data Hadoop by nitinrawat895
• 11,380 points
601 views
0 votes
1 answer

Executing mapper and reducer individually

This is what happens: Map reduce framework will ...READ MORE

Dec 18, 2018 in Big Data Hadoop by Omkar
• 69,230 points
600 views
0 votes
2 answers

Error While Running Oozie Project

You need to add your current user ...READ MORE

Aug 6, 2019 in Big Data Hadoop by Dhimanshu
599 views
0 votes
1 answer

Unable to run import script using sqoop

You are writing incorrect command. Please write ...READ MORE

Mar 8, 2019 in Big Data Hadoop by Raj
599 views