Most voted questions in Big Data Hadoop

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Why we need to install "ant -Dhadoopversion=23" ? What is the use of this?

Hi, We install ant to build pig, If the ...READ MORE

Apr 26, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 466 views
0 votes
1 answer

What are the components in Pig

Hi, Yes, this is absolutely correct that pig ...READ MORE

Apr 26, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 1,764 views
0 votes
2 answers

Error:- cannot locate pig-core-hr. jar. do ‘ant -Dhadoopversion=23 jar’

Even I got the same error, I ...READ MORE

Apr 26, 2019 in Big Data Hadoop by disha
edited Apr 29, 2019 by Gitika • 1,455 views
0 votes
1 answer

Method to schedule the number of Mappers and Reducers in a Hadoop MapReduce Tsk.

The number of Mapper tasks for a ...READ MORE

Apr 25, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 629 views
0 votes
1 answer

Can I use Amazon Web Services for free?

If you would like to use AWS ...READ MORE

Apr 25, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 528 views
0 votes
1 answer

I have installed Hadoop on Ubuntu but name node is not running.

If you are using Hadoop version-2.7.7, then ...READ MORE

Apr 30, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 1,639 views
0 votes
1 answer

Elastisearch Hadoop

I will redirect you to a repository ...READ MORE

Apr 24, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 441 views
0 votes
1 answer

Difference between Hadoop Mapreduce in MongoDB versus MangoDB's built-in MapReduce

Let me line up the crucial differences ...READ MORE

Apr 24, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,363 views
0 votes
0 answers

How run wordcount on multi node hadoop using eclipse?

Apr 24, 2019 in Big Data Hadoop by حسين
 • 200 points
recategorized Apr 24, 2019 by Omkar • 895 views
0 votes
2 answers

Hey for all, how to get on large data i want use in hadoop?

Hi, To work with Hadoop you can also ...READ MORE

Jul 30, 2019 in Big Data Hadoop by Sunny
 • 859 views
0 votes
1 answer

What are the different daemons in yarn?

Hi, The different Daemons in YARN are:- Resources Manager:- Runs ...READ MORE

Apr 24, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 4,753 views
0 votes
1 answer

Hey ,I am install Hadoop and on single node and run on one file in HDFS, but I want to run more of file I work upload files but I know to running all

If you are talking about running multiple ...READ MORE

Apr 22, 2019 in Big Data Hadoop by Tina
 • 848 views
0 votes
1 answer

Hey I am install Hadoop on single node and run program that file size is 3.2 GB and the time is 25 mins، Is this true or get less time. Thanks

Not sure what exactly you mean by ...READ MORE

Apr 22, 2019 in Big Data Hadoop by Shaam
 • 838 views
0 votes
1 answer

How to insert data inside the database in Linux?

First you need to create a table ...READ MORE

Apr 16, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 1,193 views
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 • 590 views
0 votes
1 answer

what command to see list inside your Database in linux?

Command used to list up what is inside ...READ MORE

Apr 16, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 425 views
0 votes
1 answer

How to create database in Mysql?

The command you can use is: create table ...READ MORE

Apr 15, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 532 views
0 votes
1 answer

error: Access denied for user 'sample'@'localhost'.

This kind of error occurs when we ...READ MORE

Apr 15, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 1,616 views
0 votes
1 answer

Which MySql command will generate all the list of command for MySql prompt?

The command is very simple, you have ...READ MORE

Apr 15, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 500 views
0 votes
1 answer

Command to establish connection between MySql with linux?

This is the command you can use ...READ MORE

Apr 15, 2019 in Big Data Hadoop by Gitika
 • 65,910 points
edited Apr 18, 2019 by Gitika • 789 views
0 votes
2 answers

How to see MySql service is running or not using linux command?

Hi, You can simply run the following commands ...READ MORE

Jan 21, 2020 in Big Data Hadoop by anonymous
 • 1,983 views
0 votes
2 answers

How are Partitioning and Bucketing different from each other in Apache Hive?

Let us consider a student database table ...READ MORE

Apr 15, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 3,531 views
0 votes
1 answer

How can Hadoop process the records that are split across the block boundaries?

First of all, Map Reduce algorithm is not programmed ...READ MORE

Apr 15, 2019 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 3,528 views
0 votes
1 answer

What command is used to install MySql in centos?

You can use this command to install ...READ MORE

Apr 12, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 651 views
0 votes
1 answer

I am install hadoop on signal node and run program but delay time if have dataset size 3.3 GB take time about 2 hours

Hey @Faris! Try increasing the number of reducers. ...READ MORE

Apr 12, 2019 in Big Data Hadoop by Omkar
 • 69,230 points • 789 views
0 votes
1 answer

Explain to me the difference between HBase and HDFS.

Hadoop generally consists of three major components: HDFS It ...READ MORE

Apr 12, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,825 views
0 votes
1 answer

Explain to me to run Spark without Hadoop

Spark is capable to Perform in three ...READ MORE

Apr 12, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 2,369 views
0 votes
1 answer

Why we use 'help' command in Hadoop Sqoop?

Hi, The command sqoop help lists the tools ...READ MORE

Feb 4, 2020 in Big Data Hadoop by MD
 • 95,440 points • 664 views
0 votes
1 answer

What is Kafka? what is its importance in Big-Data?

Apache Kafka is a tool used in ...READ MORE

Apr 11, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 1,541 views
0 votes
2 answers

Explain to me the concept of HUE.

Definition: HUE is an open-source SQL Cloud Editor, ...READ MORE

May 16, 2019 in Big Data Hadoop by ravikiran
 • 4,620 points • 2,410 views
0 votes
1 answer

What is the difference in DistCP command and Sqoop command in Hadoop?

Both the distCP (Distributed copy in Hadoop) ...READ MORE

Apr 11, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 1,262 views
0 votes
2 answers

Why we use --split by command in Sqoop?

In simple explanation, When specify SPLIT_BY only ...READ MORE

Feb 6, 2020 in Big Data Hadoop by Ramji Sridaran
 • 14,137 views
0 votes
0 answers

hey,can you help me

I am install hadoop and runing program ...READ MORE

Apr 11, 2019 in Big Data Hadoop by faris
 • 328 views
0 votes
1 answer

Why sqoop internally generates MapRed code?

By default Sqoop always create 4 Map ...READ MORE

Apr 11, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 840 views
0 votes
1 answer

How Sqoop import command works internally?

First when client execute Sqoop import commands through ...READ MORE

Apr 11, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 845 views
0 votes
1 answer

What are the different connectors of sqoop?

Sqoop is a tool to transfer the ...READ MORE

Apr 11, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 445 views
0 votes
1 answer

Why CLI is used in Scoop?

CLI is Command Line Client which is ...READ MORE

Apr 11, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 523 views
0 votes
0 answers

Nutch with hadoop 2.7 error "GC overhead limit exceeded"

I have a small cluster of 5 ...READ MORE

Apr 10, 2019 in Big Data Hadoop by Hafiz
 • 170 points • 1,233 views
0 votes
1 answer

What are the site-specific configuration files in Hadoop?

There are different site specific configuration to ...READ MORE

Apr 10, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 629 views
0 votes
1 answer

What is the main purpose of HDFS fsck command?

HDFS fsck is used to check the ...READ MORE

Apr 10, 2019 in Big Data Hadoop by Gitika
 • 65,910 points
edited Apr 12, 2019 by Gitika • 14,276 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 • 779 views
0 votes
1 answer

Why do we need Hadoop framework?

The function of Distributes File System is ...READ MORE

Apr 10, 2019 in Big Data Hadoop by Gitika
 • 65,910 points
edited Apr 12, 2019 by Gitika • 1,154 views
0 votes
1 answer

What is the role of Job tracker Hadoop?

Job tracker's function is resource management, tracking ...READ MORE

Apr 9, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 5,186 views
0 votes
1 answer

Difference between Cluster and nodes?

In Hadoop distributed system, Node is a single ...READ MORE

Apr 9, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 13,201 views
0 votes
1 answer

How to import Flat files in Hadoop using sqoop?

Sqoop is a tool which we use ...READ MORE

Apr 9, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 1,795 views
0 votes
0 answers

How to import Flat files in Hadoop using sqoop?

It is possible to import data between ...READ MORE

Apr 9, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 696 views
0 votes
1 answer

File formats in Hadoop?

File format is just a way to ...READ MORE

Apr 9, 2019 in Big Data Hadoop by Gitika
 • 65,910 points
edited Apr 12, 2019 by Gitika • 795 views
0 votes
1 answer

How do you handle the failure of Data node?

HDFS has Master Slave architecture in which Master ...READ MORE

Apr 9, 2019 in Big Data Hadoop by Gitika
 • 65,910 points
edited Apr 9, 2019 by Gitika • 7,218 views
0 votes
1 answer

Namespace in HDFS?

Basically when we say Namespace we mean ...READ MORE

Apr 8, 2019 in Big Data Hadoop by Gitika
 • 65,910 points • 9,938 views
0 votes
1 answer

What can you do with sqoop in Hadoop ecosystem?

Scoop came into scenario because there were tools ...READ MORE

Apr 8, 2019 in Big Data Hadoop by Gitika
 • 65,910 points
edited Apr 8, 2019 by Gitika • 883 views
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