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Hadoop Vs Spark — Choosing the Right
Big Data Framework
We are surrounded by data from all sides. It is estimated that by 2020, the digital
universe will be as large as 44 zettabytes—as many digital bits as there are stars in
the universe.
The data is increasing and we are not getting rid of it any time soon. And to digest
all this data, there seems to be an increasing number of distributed systems on the
market. Among these systems, a battle that is most famous is Hadoop vs Spark—
frameworks that are often pitted against one another as direct competitors.
When deciding which of these two frameworks is right for you, it’s important to
compare them, based on the few essential parameters. In this blog, we have shed
some light upon such parameters.
1. Performance
Spark is lightning-fast and has been found optimal over the Hadoop framework. It
runs 100 times faster in-memory and 10 times faster on disk. Moreover, it is found
that it sorts 100 TB of data 3 times faster than Hadoop using 10X fewer machines.
The reason that Spark is so fast is because it processes everything in memory.
Particularly, Spark is faster on machine learning applications, like Naive Bayes and
k-means. Thanks to Spark’s in-memory processing, it delivers real-time analytics for
data from marketing campaigns, IoT sensors, machine learning, and social media
sites.
However, if Spark, along with other shared services, is running on YARN, its
performance might degrade and can lead to RAM overhead memory leaks. And in
this particular scenario, Hadoop emerges out to be the real hero. If a user has a tilt
towards batch processing, Hadoop is much more efficient than its counterpart.
Hadoop is a big data framework that was never built for lightning speed, it uses
batch processing. Its original aim was to incessantly gather information from
websites with no requirements for this data in or near real-time.
Bottom Line: Both Hadoop and Spark have a different way of processing. Thus, it
entirely depends upon the requirement of the project, whether to go ahead with
Hadoop or Spark in the Hadoop vs Spark performance battle.
Facebook and its Transitional Journey
with Spark Framework
Data on Facebook increases with each passing second. In fact, it is even growing
while you are reading this blog. So, in order to handle this data and visualize it to
make an intelligent decision, Facebook uses analytics. And for that, it makes use of
a number of platforms as follows:
 Hive platform to execute some of
Facebook’s batch analytics
 Corona platform for the custom
MapReduce implementation
 Presto footprint for ANSI-SQL-based
queries
The Hive platform discussed above was computationally “resource intensive”. So
maintaining it was a huge challenge. Thus, Facebook decided to switch to Apache
Spark framework step-by-step to manage their data. Today, Facebook has
deployed a faster manageable pipeline for the entity ranking systems by integration
of Spark.
2. Security
Spark’s security is still in its emergence stage, supporting authentication only via
shared secret (password authentication). Even Apache Spark’s official
website claims that, “There are many different types of security concerns. Spark
does not necessarily protect against all things.”
Hadoop, on the other hand, has better security features than Spark. The security
benefits—Hadoop Authentication, Hadoop Authorization, Hadoop Auditing, and
Hadoop Encryption gets integrated effectively with Hadoop security projects like
Knox Gateway and Sentry.
Bottom Line: In Hadoop vs Spark Security battle, Spark is a little less secure than
Hadoop. However, on integrating Spark with Hadoop, it can use the security
features of Hadoop.
3. Cost
First of all, both Hadoop and Spark are open-source frameworks, and thus, come
for free. Both use commodity servers and run on the cloud, and seem to have
somewhat similar hardware requirements:
So, how to evaluate them on the basis of cost?
Note that Spark makes use of huge amounts of RAM to run everything in memory.
And it is a fact that RAM comes under a higher price tag than hard-disks.
On the other hand, Hadoop is disk-bound. Thus, your cost of buying an expensive
RAM gets saved. However, Hadoop needs more systems to distribute the disk I/O
over multiple systems.
Therefore, when comparing Spark and Hadoop framework on the parameters of
cost, organizations will have to ponder at their requirements.
If the requirement has more tilt towards processing large amounts of historical big
data, definitely, Hadoop is the choice to go ahead with because hard disk space
comes at a much cheaper price than memory space.
On the contrary, in the case of Spark, it can be cost-effective when we deal with
the option of the real-time data as it makes use of less hardware to perform the
same tasks at a much faster rate.
Bottom Line: In Hadoop vs Spark cost battle, Hadoop definitely costs less, but Spark
is cost-effective when an organization has to deal with less amount of real-time
data.
4. Ease of Use
One of the biggest USPs of the Spark framework is its ease of use. Spark has user-
friendly and comfortable APIs for its native language Scala and Java, Python, and
Spark SQL (also known as Shark).
The simple building blocks of Spark make it easy to write user-defined functions.
Moreover, since Spark allows for batch processing and machine learning, it
becomes easy to simplify the infrastructure for data processing. It even includes an
interactive mode for running commands with immediate feedback.
On the other hand, Hadoop is written in Java and has a bad reputation of paving
the way for the difficulty in writing a program with no interaction mode. Although
Pig (an add-on tool) makes it easier to program, it demands some time to learn the
syntax.
Bottom Line: In ‘Ease of Use’ Hadoop vs Spark battle, both of them have their own
ways to make themselves user-friendly. However, if we have to choose one, Spark
is easier to program and moreover includes an interactive mode.
Is it Possible for Apache Hadoop
and Spark to Have a Synergic
Relationship?
Yes, it is very much possible and we recommend too. Let’s get into the details on
how they can work in tandem.
Apache Hadoop ecosystem includes HDFS, Apache Query, and HIVE. Let’s see how
Apache Spark can make use of them.
An Amalgamation of Apache Spark
and HDFS
The purpose of Apache Spark is to process data. However, in order to process data,
the engine needs the input of data from storage. And for this purpose, Spark uses
HDFS (not the only option, but the most popular one since Apache is the brain
behind both of them).
A Blend of Apache Hive and Apache
Spark
Apache Spark and Apache Hive are highly compatible as together they can solve
many business problems.
For instance, a business is into analyzing consumer behavior. Now for this, the
company will need to gather data from various sources like social media,
comments, clickstream data, customer mobile apps, and many more.
Now, an intelligent move by the organization will be to make use of HDFS to store
the data and Apache hive as a bridge between HDFS and Spark.
Uber and its Amalgamated Approach
To process the big data of their consumer, Uber uses a combination of Spark and
Hadoop. It uses real-time traffic situation to provide drivers in a particular time and
location. And to make this possible, Uber uses HDFS for uploading raw data into
Hive, and Spark for processing of billions of events.
Hadoop vs Spark: And the
Winner Is
While Spark is faster than thunder and is easy to use, Hadoop comes with robust
security, mammoth storage capacity, and low-cost batch processing capabilities.
Choosing one out of two depends entirely upon the requirement of your project,
the other alternative being combining parts of Hadoop and Spark to give birth to
an invincible combination.
Remember!
“Betweentwoevils,chooseneither;betweentwogoods,chooseboth.”—Tryon Edwards
Mix some attributes of Spark and some of Hadoop to come up with a brand new
framework: Spoop.
Source - https://www.netsolutions.com/insights/hadoop-vs-spark/

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Hadoop Vs Spark — Choosing the Right Big Data Framework

  • 1. Hadoop Vs Spark — Choosing the Right Big Data Framework We are surrounded by data from all sides. It is estimated that by 2020, the digital universe will be as large as 44 zettabytes—as many digital bits as there are stars in the universe.
  • 2. The data is increasing and we are not getting rid of it any time soon. And to digest all this data, there seems to be an increasing number of distributed systems on the market. Among these systems, a battle that is most famous is Hadoop vs Spark— frameworks that are often pitted against one another as direct competitors. When deciding which of these two frameworks is right for you, it’s important to compare them, based on the few essential parameters. In this blog, we have shed some light upon such parameters.
  • 3. 1. Performance Spark is lightning-fast and has been found optimal over the Hadoop framework. It runs 100 times faster in-memory and 10 times faster on disk. Moreover, it is found that it sorts 100 TB of data 3 times faster than Hadoop using 10X fewer machines. The reason that Spark is so fast is because it processes everything in memory. Particularly, Spark is faster on machine learning applications, like Naive Bayes and k-means. Thanks to Spark’s in-memory processing, it delivers real-time analytics for data from marketing campaigns, IoT sensors, machine learning, and social media sites. However, if Spark, along with other shared services, is running on YARN, its performance might degrade and can lead to RAM overhead memory leaks. And in
  • 4. this particular scenario, Hadoop emerges out to be the real hero. If a user has a tilt towards batch processing, Hadoop is much more efficient than its counterpart. Hadoop is a big data framework that was never built for lightning speed, it uses batch processing. Its original aim was to incessantly gather information from websites with no requirements for this data in or near real-time. Bottom Line: Both Hadoop and Spark have a different way of processing. Thus, it entirely depends upon the requirement of the project, whether to go ahead with Hadoop or Spark in the Hadoop vs Spark performance battle. Facebook and its Transitional Journey with Spark Framework Data on Facebook increases with each passing second. In fact, it is even growing while you are reading this blog. So, in order to handle this data and visualize it to make an intelligent decision, Facebook uses analytics. And for that, it makes use of a number of platforms as follows:  Hive platform to execute some of Facebook’s batch analytics  Corona platform for the custom MapReduce implementation  Presto footprint for ANSI-SQL-based queries
  • 5. The Hive platform discussed above was computationally “resource intensive”. So maintaining it was a huge challenge. Thus, Facebook decided to switch to Apache Spark framework step-by-step to manage their data. Today, Facebook has deployed a faster manageable pipeline for the entity ranking systems by integration of Spark. 2. Security Spark’s security is still in its emergence stage, supporting authentication only via shared secret (password authentication). Even Apache Spark’s official website claims that, “There are many different types of security concerns. Spark does not necessarily protect against all things.”
  • 6. Hadoop, on the other hand, has better security features than Spark. The security benefits—Hadoop Authentication, Hadoop Authorization, Hadoop Auditing, and Hadoop Encryption gets integrated effectively with Hadoop security projects like Knox Gateway and Sentry. Bottom Line: In Hadoop vs Spark Security battle, Spark is a little less secure than Hadoop. However, on integrating Spark with Hadoop, it can use the security features of Hadoop. 3. Cost First of all, both Hadoop and Spark are open-source frameworks, and thus, come for free. Both use commodity servers and run on the cloud, and seem to have somewhat similar hardware requirements:
  • 7. So, how to evaluate them on the basis of cost? Note that Spark makes use of huge amounts of RAM to run everything in memory. And it is a fact that RAM comes under a higher price tag than hard-disks. On the other hand, Hadoop is disk-bound. Thus, your cost of buying an expensive RAM gets saved. However, Hadoop needs more systems to distribute the disk I/O over multiple systems. Therefore, when comparing Spark and Hadoop framework on the parameters of cost, organizations will have to ponder at their requirements. If the requirement has more tilt towards processing large amounts of historical big data, definitely, Hadoop is the choice to go ahead with because hard disk space comes at a much cheaper price than memory space. On the contrary, in the case of Spark, it can be cost-effective when we deal with the option of the real-time data as it makes use of less hardware to perform the same tasks at a much faster rate. Bottom Line: In Hadoop vs Spark cost battle, Hadoop definitely costs less, but Spark is cost-effective when an organization has to deal with less amount of real-time data.
  • 8. 4. Ease of Use One of the biggest USPs of the Spark framework is its ease of use. Spark has user- friendly and comfortable APIs for its native language Scala and Java, Python, and Spark SQL (also known as Shark). The simple building blocks of Spark make it easy to write user-defined functions. Moreover, since Spark allows for batch processing and machine learning, it becomes easy to simplify the infrastructure for data processing. It even includes an interactive mode for running commands with immediate feedback. On the other hand, Hadoop is written in Java and has a bad reputation of paving the way for the difficulty in writing a program with no interaction mode. Although
  • 9. Pig (an add-on tool) makes it easier to program, it demands some time to learn the syntax. Bottom Line: In ‘Ease of Use’ Hadoop vs Spark battle, both of them have their own ways to make themselves user-friendly. However, if we have to choose one, Spark is easier to program and moreover includes an interactive mode. Is it Possible for Apache Hadoop and Spark to Have a Synergic Relationship? Yes, it is very much possible and we recommend too. Let’s get into the details on how they can work in tandem. Apache Hadoop ecosystem includes HDFS, Apache Query, and HIVE. Let’s see how Apache Spark can make use of them. An Amalgamation of Apache Spark and HDFS The purpose of Apache Spark is to process data. However, in order to process data, the engine needs the input of data from storage. And for this purpose, Spark uses HDFS (not the only option, but the most popular one since Apache is the brain behind both of them).
  • 10. A Blend of Apache Hive and Apache Spark Apache Spark and Apache Hive are highly compatible as together they can solve many business problems. For instance, a business is into analyzing consumer behavior. Now for this, the company will need to gather data from various sources like social media, comments, clickstream data, customer mobile apps, and many more. Now, an intelligent move by the organization will be to make use of HDFS to store the data and Apache hive as a bridge between HDFS and Spark.
  • 11. Uber and its Amalgamated Approach To process the big data of their consumer, Uber uses a combination of Spark and Hadoop. It uses real-time traffic situation to provide drivers in a particular time and location. And to make this possible, Uber uses HDFS for uploading raw data into Hive, and Spark for processing of billions of events. Hadoop vs Spark: And the Winner Is While Spark is faster than thunder and is easy to use, Hadoop comes with robust security, mammoth storage capacity, and low-cost batch processing capabilities. Choosing one out of two depends entirely upon the requirement of your project,
  • 12. the other alternative being combining parts of Hadoop and Spark to give birth to an invincible combination. Remember! “Betweentwoevils,chooseneither;betweentwogoods,chooseboth.”—Tryon Edwards Mix some attributes of Spark and some of Hadoop to come up with a brand new framework: Spoop. Source - https://www.netsolutions.com/insights/hadoop-vs-spark/