Most viewed questions in Big Data Hadoop

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what are the commonly used Spark ecosystem?

Can someone mention what are the commonly ...READ MORE

Jul 2, 2019 in Big Data Hadoop by ranjan
 • 410 views
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Differentiate between FileSink and FileRollSink

Hey, The major difference between HDFS FileSink and ...READ MORE

Jun 20, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 410 views
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Command to initiate MapReduce which provide decent UI?

I am new to MapReduce and want ...READ MORE

Jun 14, 2019 in Big Data Hadoop by Rachna
 • 410 views
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How to set Sentry server details in Hue?

You have to set the server details ...READ MORE

May 30, 2019 in Big Data Hadoop by Karna
 • 409 views
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What is the motivation behind developing Hive?

Hey, I am learning Hive in a basic ...READ MORE

May 9, 2019 in Big Data Hadoop by dyna
 • 409 views
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Hive: grant privileges on an object to a role

Use the GRANT <Privilege> statement to grant ...READ MORE

May 31, 2019 in Big Data Hadoop by Sooraj
 • 408 views
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Transfer data between 2 Tables having issues with Date conversion from string to Date datatype.

This can be solved making use of ...READ MORE

Dec 28, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 408 views
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Allowing hue to connect to sentry service

If you have enabled Kerberos for the ...READ MORE

May 30, 2019 in Big Data Hadoop by Jimmy
 • 406 views
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Will hadoop replace data warehousing?

Mostly the answer is yes hadoop is ...READ MORE

Apr 4, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 406 views
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Relation between LOAD operation and LOCAL keyword?

Hey, The Load operation is used to move the ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 405 views
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Hadoop Distribution Differences

The Yahoo distribution is a version of ...READ MORE

Feb 18, 2019 in Big Data Hadoop by Frankie
 • 9,830 points • 405 views
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Can someone tell me how apache sqoop works?

This blog would give you answers to ...READ MORE

Nov 16, 2018 in Big Data Hadoop by brat_1
 • 7,200 points • 405 views
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Setting the resource manager port in Hue

Open the hue configuration file and search for the [[yarn_clusters]] sub-section. ...READ MORE

May 30, 2019 in Big Data Hadoop by Khan
 • 404 views
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Is there a good online tutorial for Hadoop development on a Windows 7 machine?

I would suggest you go through this ...READ MORE

Mar 29, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 404 views
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How to implement sqoop jobs?

Step 1: Give the below command to ...READ MORE

Dec 18, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 402 views
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How to create table in cassandra?

Hi@akhtar, To create table in cassandra, you have ...READ MORE

Apr 1, 2020 in Big Data Hadoop by MD
 • 95,440 points • 401 views
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Why to check status in zookeper?

Hello, Status describes the metadata of a specified znode. ...READ MORE

May 28, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 401 views
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Why Watch keyword is used in zookeeper?

Hey, Watches show a notification when the specified ...READ MORE

May 28, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 401 views
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Why INSERT command in Hive?

Hey, The insert command is used to load the data ...READ MORE

May 15, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 400 views
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How to create an objects using a keyword new?

Example import java.io._ class Point(val xc: Int, val yc: ...READ MORE

Nov 17, 2020 in Big Data Hadoop by Gitika
 • 65,910 points • 398 views
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Explain to me the difference between HadoopHDFS and HBase.

Let me explain the major differences between ...READ MORE

May 13, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points
edited May 14, 2019 by Omkar • 398 views
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Can someone help with Hadoop installation Setup on Ubuntu?

I have understood your query, I have ...READ MORE

May 15, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 397 views
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Exception: Hadoop security GroupMappingServiceProvider. I have received this exception for running Spark job via Dataproc API

 I hope I understood your issue and ...READ MORE

Jun 24, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 396 views
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Channel in Flume

 A transient store that receives the events ...READ MORE

Jul 17, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 396 views
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1 answer

How to create Hive tables that can be partitioned Using HiveQL?

Hey, You can create a Hive table using ...READ MORE

Jun 26, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 395 views
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How Hadoop distributes block writes into HDFS?

So, what happens is the slave node ...READ MORE

Aug 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 394 views
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1 answer

Why do we need the FOR EACH operation in Pig Scripts?

The operation FOREACH in Apache Pig is ...READ MORE

Apr 30, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 393 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 • 391 views
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Query regarding Parquet File type conversion

Suppose I have the below parquet file ...READ MORE

Jun 20, 2019 in Big Data Hadoop by Stuart
 • 391 views
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I went to datadir/hdfs/nn/current but no folder called current

Hi@Wlssam, I am not able to understand your ...READ MORE

Sep 14, 2020 in Big Data Hadoop by MD
 • 95,440 points • 390 views
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1 answer

Is StandBy NameNode a daemon?

StandBy NameNode is not a separate daemon. ...READ MORE

Jun 19, 2019 in Big Data Hadoop by Raman
 • 390 views
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How Hadoop scalabality linear or proportional depends on the number of nodes?

Hey, These jobs are often IO based not ...READ MORE

May 28, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 389 views
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HDFS usage for small files

Well, the HDFS works more reliably with ...READ MORE

Jun 12, 2018 in Big Data Hadoop by BigData_is_my_ex
 • 389 views
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Mention Job Flow parameter in Oozie?

Hey, You can use this job flow parameter ...READ MORE

Jun 17, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 388 views
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What is the necessity of slave node in Oozie workflow?

Hey, A topology runs in a distributed manner, ...READ MORE

Jun 12, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 386 views
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Cloudera Managing and Compatibality

With more partners than any other Hadoop ...READ MORE

Aug 6, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 385 views
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1 answer

How to create Scala Maps?

Maps can be created in different ways ...READ MORE

Nov 17, 2020 in Big Data Hadoop by Gitika
 • 65,910 points • 383 views
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What are the components of Hbase?

Hey, Components of Hbase are as follows: Zookeeper:- It ...READ MORE

May 21, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 383 views
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1 answer

Increasing latency for Accumulo batch writer

The default max-latency set is 0 milliseconds. ...READ MORE

May 17, 2019 in Big Data Hadoop by Karan
 • 381 views
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1 answer

Pig CLI mode

Pig can be used in two modes: 1) ...READ MORE

Jan 4, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 381 views
–1 vote
1 answer

How to start pyspark?

Follow these steps: First start hadoop daemons: cd $HADOOP_HOME/sbin ./start-all.sh Now ...READ MORE

Jan 3, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 381 views
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What does a Hadoop tester do?

Hadoop tester, like any other tester, has ...READ MORE

Nov 6, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 381 views
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Does Cloudera Manager Support an API?

Yes. A comprehensive set of APIs for ...READ MORE

Dec 7, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 380 views
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1 answer

What is new in Hadoop 3?

Here are few changes in Hadoop 3 1. ...READ MORE

May 28, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 380 views
+1 vote
1 answer

How to switch off Cloudera Manager Service?

First list the running services: chkconfig --list And then ...READ MORE

Dec 17, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 379 views
0 votes
1 answer

How to provide encryption for Cloudera HDFS?

You can provide security to cloudera hdfs by using HDFS ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 378 views
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Difference between Name node and Secondary Name node

Explain to me the difference between the ...READ MORE

Mar 26, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 377 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
 • 12,690 points • 376 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
 • 3,810 points • 374 views
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1 answer

what is big data concept

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

Feb 4, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 374 views
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