Most answered questions in Big Data Hadoop

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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 • 417 views
0 votes
1 answer

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 • 457 views
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1 answer

Understanding Hadoop Master Node, Slave Node and Data Node.

The NameNode and the JobTracker are single ...READ MORE

Sep 6, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 2,484 views
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1 answer

What is Network Topology in Hadoop?

Let's imagine your cluster as a tree ...READ MORE

Sep 6, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 3,531 views
0 votes
1 answer

Clarification of some Hadoop Concepts.

Please go through : http://bytepadding.com/big-data/map-reduce/understanding-map-reduce-the-missing-guide/ Lets try to understand ...READ MORE

Sep 5, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 342 views
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1 answer

How to format the output being written by MapReduce in Hadoop?

Here is a simple code demonstrate the ...READ MORE

Sep 5, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 2,290 views
0 votes
1 answer

How to access Hadoop Data using REST service?

The REST API gateway for the Apache ...READ MORE

Sep 5, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 4,115 views
0 votes
1 answer

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 • 505 views
0 votes
1 answer

Will hadoop(sqoop) load oracle faster than SQL loader?

down vote Had a similar task of exporting ...READ MORE

Sep 4, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 1,579 views
0 votes
1 answer

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 • 520 views
0 votes
1 answer

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 • 698 views
0 votes
1 answer

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 • 1,064 views
0 votes
1 answer

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 • 673 views
0 votes
1 answer

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 • 731 views
0 votes
1 answer

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 • 847 views
0 votes
1 answer

Hive with JSON: getting EOF exception while querying

You are missing the commas in your ...READ MORE

Aug 30, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,410 views
0 votes
1 answer

Hbase REST API: Timerange scan

Looking at the XSD, it seems that ...READ MORE

Aug 30, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 1,402 views
0 votes
1 answer

different schedulers in Hadoop

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

Aug 28, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 1,085 views
0 votes
1 answer

Speculative Execution in Hadoop

In Hadoop, Speculative Execution is a process ...READ MORE

Aug 28, 2018 in Big Data Hadoop by kurt_cobain
 • 9,390 points • 8,044 views
0 votes
1 answer

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 • 1,401 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 • 822 views
0 votes
1 answer

How do I print hadoop properties in command line?

You can dump Hadoop config by running: $ ...READ MORE

Aug 23, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 2,262 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 • 603 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 • 459 views
0 votes
1 answer

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 • 820 views
0 votes
1 answer

How hadoop command works with javac?

Javac is used for compiling your java ...READ MORE

Aug 17, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,228 views
0 votes
1 answer

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 • 1,302 views
0 votes
1 answer

Where are Hadoop's task log files stored?

You can easily find these log files ...READ MORE

Aug 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 1,446 views
0 votes
1 answer

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 • 391 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 • 609 views
0 votes
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 • 573 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 • 1,024 views
0 votes
1 answer

Determining number of reduces?

Number of reduces are set by the ...READ MORE

Aug 16, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 350 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 • 1,024 views
0 votes
1 answer

What is the difference between local file system commands touch and touchz?

Actually they both do the same except touchz is ...READ MORE

Aug 14, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 2,158 views
0 votes
1 answer

Can I have a list of property files used in Hadoop Framework?

Here is a complete list of configuration ...READ MORE

Aug 14, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 634 views
0 votes
1 answer

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 • 1,683 views
0 votes
1 answer

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 • 1,093 views
+3 votes
1 answer

Apache Nifi Execute Process Processor

Hey soujanyabargavi!  NO, ExecuteProcess does not allow incoming ...READ MORE

Sep 20, 2018 in Big Data Hadoop by Omkar
 • 69,210 points • 3,707 views
0 votes
1 answer

How to count lines in a file on hdfs command?

Use the below commands: Total number of files: hadoop ...READ MORE

Aug 10, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 27,232 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 • 510 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 • 1,182 views
0 votes
1 answer

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 • 1,568 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 • 791 views
0 votes
1 answer

When a reduce class also serve as a combiner?

It will act as a combiner when ...READ MORE

Aug 9, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 519 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 • 986 views
0 votes
1 answer

Operation to simulate a Hadoop Production Cluster

In this case, what you can do ...READ MORE

Aug 9, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 643 views
0 votes
1 answer

Determining how many mappers will run?

Here what happens is, each file would ...READ MORE

Aug 9, 2018 in Big Data Hadoop by nitinrawat895
 • 11,380 points • 2,266 views
0 votes
1 answer

Example or Use Case of Big Data

Let me answer your questions one by ...READ MORE

Aug 9, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 697 views
0 votes
1 answer

How to assess and compare Hadoop for Business Intelligence?

Hadoop is a great tool to be ...READ MORE

Aug 8, 2018 in Big Data Hadoop by Frankie
 • 9,830 points • 431 views
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