Most answered questions in Big Data Hadoop

+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 • 1,305 views
+1 vote
1 answer

Hadoop home path?

you can manually input the hadoop home ...READ MORE

Mar 26, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 7,696 views
+1 vote
1 answer

HDFS Permission

You have to check permissions on the ...READ MORE

Mar 26, 2018 in Big Data Hadoop by Ashish
 • 2,650 points • 1,166 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 • 3,253 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 • 2,389 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 • 1,327 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 • 1,774 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 • 2,190 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 • 1,497 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 • 1,391 views
+2 votes
1 answer

Is Kafka and Zookeeper are required in a Big Data Cluster?

Apache Kafka is one of the components ...READ MORE

Mar 23, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,510 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 • 2,349 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 • 3,964 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 • 2,010 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 • 10,245 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
 • 9,350 points • 1,643 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
 • 9,350 points • 1,220 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 • 3,625 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 • 2,946 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 • 2,731 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 • 1,900 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 • 1,362 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 • 2,023 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 • 1,584 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
 • 2,090 points • 8,163 views
+1 vote
1 answer

I installed Spark but while executing command, I am getting ‘hadoop’ command not found error?

For accessing Hadoop commands & HDFS, you ...READ MORE

Mar 21, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 3,053 views
–1 vote
1 answer

Hadoop dfs -ls command?

In your case there is no difference ...READ MORE

Mar 16, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 5,149 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
 • 95,460 points • 2,757 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
 • 2,090 points • 1,672 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
 • 2,393 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
 • 9,350 points • 5,593 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 • 1,970 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
 • 1,785 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
 • 1,570 points • 1,448 views
0 votes
0 answers

hadoop cluster Unable to start standby Namenode

we have HDP Hadoop cluster with two ...READ MORE

Feb 4, 2024 in Big Data Hadoop by koko
edited Mar 5 • 284 views
0 votes
0 answers

hadoop cluster + Unable to start standby Namenode

we have HDP Hadoop cluster with two ...READ MORE

Feb 4, 2024 in Big Data Hadoop by anonymous
edited Mar 5 • 269 views
0 votes
0 answers

I am getting this below error in cloudera environment when executing the batch processing code

java.lang.IllegalStateException: Received event is not valid: Closed at ...READ MORE

Jun 27, 2023 in Big Data Hadoop by syedsalahuddin
edited Mar 5 • 464 views
0 votes
0 answers

Dj djdd dbd dbd jd dj dj dj dj

Jus eeiger eeiger ec hg hg hg ...READ MORE

May 26, 2023 in Big Data Hadoop by anonymous
edited Mar 5 • 272 views
0 votes
0 answers

namenode not running

when i execute command start-all.sh it does ...READ MORE

Jan 25, 2023 in Big Data Hadoop by Pramod
edited Mar 4 • 250 views
0 votes
0 answers

sqoop export --connect jdbc:oracle:thin:@//dbtx07-scan7:9444/mydb --username nathan --P --table my_table --export-dir "/data/scoop_data/" -m -8 . I get the error attached.

READ MORE

Jan 17, 2023 in Big Data Hadoop by Nathan
 • 110 points
edited Mar 4 • 232 views
0 votes
0 answers

when i try to install hadoop 3.3.1 on ubuntu VM base on https://youtu.be/03uyN3WquIc

when i type cd /usr/local/hadoop/ in command i ...READ MORE

Nov 24, 2022 in Big Data Hadoop by Farah
edited Mar 4 • 147 views
0 votes
0 answers

Which is better linen or polyester?

Polyester, a synthetic, is a warmer fabric, ...READ MORE

Nov 16, 2022 in Big Data Hadoop by qiansifang
edited Mar 4 • 162 views
0 votes
0 answers

Sqoop error while trying to connect to MySql

Hello, I am running the below sqoop command ...READ MORE

Oct 2, 2022 in Big Data Hadoop by stepnabz
edited Mar 4 • 146 views
0 votes
0 answers

Cleaning Requirements for Hospital Curtain Fabric

Generally, hospital curtains are different from household ...READ MORE

Sep 26, 2022 in Big Data Hadoop by qiansifang
edited Mar 4 • 153 views
0 votes
0 answers

while deploying single node hadoop cluster, on final step of formatting namenode its showing command not found?

i have entered command hdfs dfs namenode ...READ MORE

Sep 5, 2022 in Big Data Hadoop by user
edited Mar 4 • 135 views
0 votes
0 answers

The characteristics of flame retardant curtain fabric

Flame retardant curtain fabric is a product ...READ MORE

Jul 29, 2022 in Big Data Hadoop by qiansifang
edited Mar 4 • 158 views
0 votes
0 answers

the location of chunks aren't stored in non-volatile memory of GFS, how much time would it take for master to receive heartbeat messages and build the chunk locations table?

Since in GFS, we assume hardware fails ...READ MORE

Jul 23, 2022 in Big Data Hadoop by narayanan
edited Mar 4 • 163 views
0 votes
0 answers

how to remove this erroe

on every execution of commands  this error ...READ MORE

May 23, 2022 in Big Data Hadoop by anonymous
edited Mar 4 • 207 views
0 votes
0 answers

hiv table data load using .csv

this is my data in csv file ...READ MORE

May 21, 2022 in Big Data Hadoop by Srinivas
 • 120 points
edited Mar 4 • 224 views
0 votes
0 answers

EXCEL: How to automatically add serial number in Excel Table using formula that is immune to filtering / sorting?

I want to create an Excel Table ...READ MORE

Mar 24, 2022 in Big Data Hadoop by Edureka
 • 13,690 points • 4,313 views
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