Trending questions in Big Data Hadoop

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How do I get connected to Hadoop and Geo Spatial connector?

There are a number of free and ...READ MORE

Aug 14, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 2,342 views
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Can we integrate Hadoop with Python?

Use Hadoop streaming for using python,php etc ...READ MORE

Aug 23, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,917 views
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Hadoop Documentation for Eclipse.

Few considerations to be taken are here: If ...READ MORE

Sep 11, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,064 views
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Which is the Real Time Monitoring tool/API for Hadoop?

If you're using Yarn, there's a rest ...READ MORE

Sep 4, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,361 views
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How to move data from Oracle database to Hadoop?

Yes, you heard it correctly. Apache Sqoop is ...READ MORE

Apr 12, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 7,523 views
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different schedulers in Hadoop

COSHH – It schedules decisions by considering ...READ MORE

Aug 28, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 1,555 views
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Block Scanner HDFS

Block scanner runs periodically on every DataNode ...READ MORE

Jul 31, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 2,683 views
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How a client reads a file from HDFS?

Let me explain you it briefly. So, ...READ MORE

Jul 31, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,639 views
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How should I connect Hadoop in C#?

The Uri should be your Cluster Name, ...READ MORE

Aug 7, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,327 views
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What is the Data format and database choices in Hadoop and Spark?

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

Sep 4, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,096 views
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How to Install Cloudera Manager into my Virtual Machine ?

Before you start anything, First make sure ...READ MORE

Aug 9, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,154 views
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Passing keys and values to the reducers during a standard sort and shuffle phase of MapReduce

Let me explain you the whole scenario Reducer ...READ MORE

Jul 27, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,680 views
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Which Windows client is used for Cloudera Hadoop Cluster?

You can very well use VM linux ...READ MORE

Sep 4, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 999 views
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What is the best functional language to do Hadoop Map-Reduce?

down voteacceptedBoth Clojure and Haskell are definitely ...READ MORE

Sep 4, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 993 views
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Hadoop Pipe: shared libraries, No such file or directory error

Add -rpath my.zip/lib to LDFLAGS_HDP. For compilation to work, you ...READ MORE

Aug 30, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,160 views
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How to upgrade Apache Hadoop from 2.4.1 to 2.6.0?

If the downtime is not an issue, ...READ MORE

Sep 7, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 774 views
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How to write examples to test whether the installation is validated or not?

You have some example jars in your ...READ MORE

Sep 5, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 861 views
0 votes
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What is the difference between hadoop-1.2.1.bin.tar.gz and hadoop-1.2.1.tar.gz files?

As the name of the file in ...READ MORE

Aug 17, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,620 views
0 votes
1 answer

What are the basic concepts for video data structure and processing?

1.  Make use of hadoop storm framework. ( ...READ MORE

Sep 7, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 688 views
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Which Operating system is more preferable for data node?

In a real installation (1 active namenode, ...READ MORE

Sep 4, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 805 views
0 votes
1 answer

How does Hadoop's block replacement policy work?

In your case, One copy of the ...READ MORE

Aug 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,551 views
0 votes
1 answer

Use of MapReduce in PIG

Apache Pig programs are written in a ...READ MORE

Jul 25, 2018 in Big Data Hadoop by shams
 • 3,670 points • 2,500 views
0 votes
1 answer

What happens in a MapReduce job when you set the number of reducers to one?

If you set number of reducers as ...READ MORE

Jul 31, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,202 views
0 votes
1 answer

How to programmatically access hadoop cluster where kerberos is enable?

Okay,here's the code snippet to work in the ...READ MORE

Mar 27, 2018 in Big Data Hadoop by coldcode
 • 2,090 points • 7,624 views
0 votes
1 answer

What is the difference between Big Data and Data Mining?

Big data and data mining are two ...READ MORE

Aug 23, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,197 views
0 votes
1 answer

What is the prerequisite for BigQuery other than SQL?

If you know your SQL, you should ...READ MORE

Aug 23, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,172 views
0 votes
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Want to have an idea on Hadoop Machine Learning and Data Mining project.

You haven't written anything about your interest. ...READ MORE

Aug 14, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,547 views
0 votes
1 answer

How to calculate number of slave nodes?

Total number of slave nodes in your ...READ MORE

Aug 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,425 views
0 votes
1 answer

What is the difference between a Big Data Warehouse and a traditional Data Warehouse?

Hadoop is similar in architecture to MPP data ...READ MORE

Aug 10, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,704 views
0 votes
1 answer

How will the Fair Scheduler handle more than one Job?

In your case when job B gets ...READ MORE

Aug 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,401 views
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Clarification of some Hadoop Concepts.

ets try to understand what is the ...READ MORE

Sep 5, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 549 views
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What are the problems in creating volume in mapr hadoop?

It sounds like the user you are ...READ MORE

Aug 22, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,143 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 • 7,763 views
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1 answer

How do I include all the Hadoop dependencies using Maven?

This is a dependency mismatch error. I ...READ MORE

Apr 10, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 6,818 views
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2 answers

Which of these will vanish: Flink vs Spark?

At first glance, Flink and Spark would ...READ MORE

Aug 13, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 1,430 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 • 7,405 views
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1 answer

InputSplit vs HDFS Block

By definition Block – Block is the continuous ...READ MORE

Jun 1, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 4,555 views
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1 answer

What is hadoop.tmp.dir ?

hadoop.tmp.dir is used as the base for temporary ...READ MORE

Mar 26, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 7,436 views
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How compression works in Hadoop?

It basically depends on the file type ...READ MORE

Jul 27, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 2,137 views
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What is the command to navigate in HDFS?

First of all there is no command ...READ MORE

Apr 27, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 5,988 views
0 votes
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What's the difference between Hadoop and NoSQL ?

Let's start with the definitions Hadoop is an ...READ MORE

Apr 2, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points • 7,052 views
+1 vote
2 answers

Failed to restart Hadoop namenode using cloudera quickstart

You can use Cloudera Manager to manage ...READ MORE

Mar 19, 2018 in Big Data Hadoop by kurt_cobain
 • 9,350 points
edited Jun 9, 2020 by MD • 4,523 views
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1 answer

Determining HDFS space in a cluster?

There are two ways to determine available ...READ MORE

Aug 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,027 views
0 votes
1 answer

How to print the content of a file in console present in HDFS?

Yes, you can use hdfs dfs command ...READ MORE

Apr 19, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 6,166 views
0 votes
1 answer

How to extract Cloudera Hadoop VM archive?

If you are Windows, you need to ...READ MORE

Aug 9, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,322 views
0 votes
1 answer

What does NameNode stores and where it stores?

NameNode records the metadata of all the ...READ MORE

Apr 15, 2018 in Big Data Hadoop by Shubham
 • 13,490 points • 6,307 views
0 votes
1 answer

Storing collection of images in HDFS

Using Hadoop Sequence Files, you can store ...READ MORE

Aug 9, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,314 views
0 votes
1 answer

What are the options for hadoop on scala?

Definitely check out Scalding. Speaking as a user ...READ MORE

Aug 22, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 747 views
0 votes
2 answers

How do I integrate Kdb+ and hadoop?

 kdb+ could be installed on every Hadoop ...READ MORE

Aug 6, 2018 in Big Data Hadoop by Abhi
 • 3,720 points • 1,913 views
+1 vote
1 answer

When I try to execute any Hadoop commands error pops up saying unable to find or load main class M

The error might be due to the ...READ MORE

Jul 17, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 2,184 views
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