Most viewed questions in Big Data Hadoop

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How to see the history of Job output-dir in MapReduce?

Hi, You can use this command to the ...READ MORE

Jun 14, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 795 views
0 votes
1 answer

What should be the choice of database and what type of data format is suitable for Spark/hadoop?

Use Parquet. I'm not sure about CSV ...READ MORE

Sep 28, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 794 views
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1 answer

Is there any way to setup Hadoop nodes (data nodes/namenodes) to use multiple volumes/disks?

Datanodes can store blocks in multiple directories ...READ MORE

Jun 20, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 794 views
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1 answer

Getting error while building Hadoop core jar using ant.

I think you are missing libtool library. ...READ MORE

Apr 18, 2018 in Big Data Hadoop by coldcode
 • 2,080 points • 794 views
0 votes
1 answer

How to set job tracker host in Hue?

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

May 30, 2019 in Big Data Hadoop by Raman
 • 793 views
0 votes
1 answer

SQOOP Import error - Invalid argurments

Hi@Vikramraj, You have passed wrong arguments in your ...READ MORE

Sep 1, 2020 in Big Data Hadoop by MD
 • 95,440 points • 792 views
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1 answer

whenever i trying to put the data file on hdfs then this types or error ate encountered.

Try -copyFromLocal command READ MORE

Aug 23, 2019 in Big Data Hadoop by Nagajyothi
 • 160 points • 792 views
0 votes
1 answer

Explain to me the installation procedures for RHadoop packages (RMR, RHDFS, RHBase).

Download packages rhdfs, rhbase, rmr2 and plyrmr ...READ MORE

Jun 28, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 792 views
0 votes
1 answer

Using Microsoft SQL Server for Sqoop

To use Microsoft SQL Server for Sqoop, ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Ramay
 • 791 views
–1 vote
1 answer

Can't seem to make hdfs commands to work

Check the ip address mentioned in core-site.xml ...READ MORE

Dec 21, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 791 views
0 votes
1 answer

How to migrate/ change Hadoop 1.x maven project to Hadoop 2.x?

In Hadoop 2.2. most of the dependencies ...READ MORE

Apr 15, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 791 views
+1 vote
1 answer

Is Hadoop only Framework in Big Data Ecosystem ?

Actually there are many other frameworks, one of ...READ MORE

Mar 26, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 791 views
0 votes
1 answer

What are the different hdfs dfs commands to perform copy operation?

The different hdfs dfs commands to perform ...READ MORE

Apr 10, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 790 views
0 votes
1 answer

How to check Hue configuration?

There are two ways to do this: Visit http://myserver:port and ...READ MORE

May 24, 2019 in Big Data Hadoop by John
 • 788 views
0 votes
1 answer

Hive Precedence Order

SET Command in HIVE The command line –hiveconf ...READ MORE

Jul 9, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 787 views
0 votes
1 answer

Installing Pig on Linux System

It was a good thing that you ...READ MORE

Feb 27, 2019 in Big Data Hadoop by Yuri
 • 785 views
0 votes
1 answer

Use cases of Apache Oozie?

Hi, Apache Oozie is used by Hadoop system ...READ MORE

Jun 12, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 784 views
0 votes
1 answer

Disable Client/Server authentication in Hue

To disable the Client/Server authentication, you have ...READ MORE

Jun 3, 2019 in Big Data Hadoop by Preetham
 • 783 views
0 votes
1 answer

How to configure ulimit for Hbase using command line?

Hi, Increasing the file handles for the user ...READ MORE

May 29, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 783 views
0 votes
1 answer

Mapreduce problem with output part file

As the error suggests and you have ...READ MORE

Feb 7, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 783 views
+1 vote
1 answer

When to use Hadoop, HBase, Hive and Pig?

MapReduce is just a computing framework. HBase has ...READ MORE

Nov 20, 2020 in Big Data Hadoop by Gitika
 • 65,910 points • 782 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 • 781 views
0 votes
1 answer

What are the operational commands of HBase?

Hey, These are the following operational commands: Get- Returns ...READ MORE

May 21, 2019 in Big Data Hadoop by Gitika
 • 65,910 points
edited May 21, 2019 by Gitika • 781 views
0 votes
1 answer

How to run Nutch in Hadoop installed in pseudo-distributed mode

Make sure you have built Nutch from ...READ MORE

Jan 24, 2019 in Big Data Hadoop by Frankie
 • 9,830 points • 780 views
0 votes
1 answer

How to set communicate between Hbase with Java Libraries ?

Hey, We can also communicate with HBase using ...READ MORE

May 23, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 779 views
0 votes
1 answer

Hbase to pig integration

First enter into grunt shell: $ ./pig –x ...READ MORE

Feb 19, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 779 views
0 votes
1 answer

What is Hadoop Performance Tuning?

Is it consistent or one-off reading? Is ...READ MORE

Oct 24, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 777 views
0 votes
1 answer

What additional capability does Ganglia provide to monitor Hadoop?

Ganglia is an open-source, scalable and distributed ...READ MORE

Sep 18, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 777 views
+1 vote
1 answer

Unhandled internal error. Java heap space

Hi As your file size is too large, ...READ MORE

Jan 21, 2020 in Big Data Hadoop by anonymous
 • 776 views
0 votes
1 answer

How to execute combiner and partitioning program without adding package name?

Yes, it is possible to do so ...READ MORE

Jul 16, 2019 in Big Data Hadoop by Raman
 • 776 views
0 votes
1 answer

Script storage in Hue

You can follow these steps to find ...READ MORE

Jan 7, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 774 views
0 votes
1 answer

How to configure Hue for TLS/SSL communication?

Follow these steps from the root of your ...READ MORE

May 24, 2019 in Big Data Hadoop by Loki
 • 771 views
0 votes
1 answer

How to start Hadoop namenode service?

Hi@akhtar, If you configured your Hadoop master successfully, ...READ MORE

Sep 21, 2020 in Big Data Hadoop by MD
 • 95,440 points • 770 views
0 votes
1 answer

How to set SQLite Query Configurations in Hue?

To set the query configurations, you will ...READ MORE

May 27, 2019 in Big Data Hadoop by Suri
 • 769 views
0 votes
1 answer

In Hadoop MapReduce, how can i set an Object as the Value for Map output?

Try this and see if it works: public ...READ MORE

Nov 21, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 769 views
0 votes
1 answer

what are the different features of big data analytics

Features of big data analytics are- Velocity The pace ...READ MORE

Feb 1, 2022 in Big Data Hadoop by CoolCoder
 • 4,400 points • 764 views
0 votes
1 answer

Access Hive Server with JDBC clients

To access Hive Server using JDBC client, ...READ MORE

Jun 4, 2019 in Big Data Hadoop by Raghu
 • 763 views
0 votes
1 answer

How to start Command Line Interface in Zookeeper?

Hey, To start the CLI for zookeeper you can ...READ MORE

May 28, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 761 views
0 votes
1 answer

List of all the functions that can be obtain from hive?

Hello, A list of all functions can be ...READ MORE

May 16, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 759 views
0 votes
1 answer

How to secure thrift server crash if receives invalid data?

Hey, The Thrift server may crash if it ...READ MORE

May 29, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 756 views
0 votes
1 answer

How to connect Relational Database using Sqoop?

Hi, You can use the command below to ...READ MORE

Jun 26, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 755 views
0 votes
1 answer

How can you Check the xml definition of a Workflow, Coordinator or Bundle Job in Oozie?

Hey, You can use this example so that ...READ MORE

Jun 24, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 755 views
0 votes
1 answer

Explain what is WebDAV in Hadoop?

Hey, To support editing and updating files WebDAV ...READ MORE

Jun 10, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 755 views
0 votes
2 answers

Which one among the both MapRed and MapReduce is considered better to create a Hadoop job?

The new API is cleaner and faster. ...READ MORE

Mar 11, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 755 views
0 votes
1 answer

JobTracker Task Scheduling

The task tracker send out heartbeat messages ...READ MORE

Jun 5, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 755 views
0 votes
1 answer

Hadoop: method to send output to multiple directories

setup: MultipleOutputs.addNamedOutput(job, "Output", TextOutputFormat.class, Text.class, Text.class); setup of reducer: mout ...READ MORE

Nov 13, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 754 views
0 votes
1 answer

Can hive queries be executed from script files? And how?

Hey, It is possible by using the source ...READ MORE

Jun 26, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 752 views
0 votes
1 answer

Command to partition table in Hive

Yes, You need to mention the below ...READ MORE

Dec 17, 2018 in Big Data Hadoop by Omkar
 • 69,230 points • 752 views
0 votes
1 answer

How to configure Oozie to use Oracle?

You have to mention the following properties ...READ MORE

Jun 6, 2019 in Big Data Hadoop by Rishi
 • 750 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 • 749 views
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