Apache Hadoop and Apache Spark are dominant technologies in big data processing frameworks for big data architectures. Both are at the epicenter of a rich ecosystem of open-source platforms that handle, manage, and analyze massive data collections. However, organizations always doubt which technology to opt for— big data Hadoop vs Spark.
To add to the confusion, these technologies frequently collaborate and handle data stored in the Hadoop Distributed File System (HDFS). However, each is a different and separate entity with its benefits, drawbacks, and unique business applications. As a result, businesses often assess both of them for potential use in applications.
Most opinions revolve around optimizing large data environments for batch processing or real-time processing centers on big data Hadoop vs Spark. But that oversimplifies the variations between the two frameworks. At the same time, Hadoop and some of its components can now be used for workloads involving interactive querying and real-time analytics.
While both Hadoop and Spark excel in processing massive datasets, they differ significantly in their architectures and use cases. Hadoop’s batch-oriented processing is well-suited for tasks that require fault tolerance and high throughput but may only sometimes demand real-time responsiveness. On the other hand, Spark’s ability to cache data in memory and perform iterative computations efficiently makes it ideal for iterative algorithms, machine learning, and stream processing applications where low-latency responses are crucial.
In this era, the choice between Hadoop and Spark depends on various factors, such as the nature of the data, processing requirements, and organizational objectives. While Hadoop remains a robust choice for batch processing and long-running jobs, Spark’s speed and flexibility make it a preferred option for interactive analytics and emerging use cases demanding real-time insights. Ultimately, the decision between Hadoop and Spark hinges on striking the right balance between performance, scalability, and ease of use to meet the requirements of each enterprise.
There is a wide range of solutions for big data frameworks processing in the current era. Additionally, many businesses provide specific enterprise features to accompany open-source platforms. Many companies run both applications for significant data use cases. Initially, Hadoop was only suitable for batch applications. In contrast, big data Hadoop vs Spark was initially created to perform batch operations faster than Hadoop.
Additionally, Spark applications are frequently constructed on top of HDFS and YARN resource management technologies. HDFS is one of Spark’s leading data storage choices but needs a file system or repository. Before deeply comparing Hadoop vs. Spark, let’s learn about Apache Hadoop and Apache Spark.
What is Apache Hadoop?
The term Hadoop was first coined by Mike Cafarella and Doug Cutting in 2006, and they started it to process a massive amount of data. Hadoop began as a Yahoo initiative and later became a top-level Apache open-source project. The acronym stands for High Availability Distributed Object-Oriented Platform. That’s what Hadoop technology offers developers – high availability through the simultaneous distribution of object-oriented tasks.
Apache Hadoop is an open-source platform for storing and processing many data applications. It offers highly reliable, scalable, and distributed processing of big data storage solutions.
This Java-based software can scale from a single server to thousands of devices, each providing storage and local computing. It offers the building blocks for developing different applications and services.
Hadoop is developed on clusters of commodity computers. It offers a cost-effective solution for storing and processing a large volume of organized, semi-structured, and unstructured data with no format restrictions. Hadoop is primarily built in Java and supports numerous languages, such as Perl, Ruby, Python, PHP, R, C++, and Groovy.
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Apache Hadoop involves four main modules, and they are:
1) HDFS
Hadoop Distributed File System (HDFS) controls how big data frameworks sets are stored within a Hadoop cluster. It can even generate both structured and unstructured data. In addition, it offers high fault tolerance and high throughput data access.
2) YARN
YARN stands for Yet Another Resource Negotiator. YARN is Hadoop’s cluster resource manager that schedules tasks and distributes resources (such as CPU and memory) to applications using a cluster resource manager.
3) Hadoop MapReduce
Hadoop MapReduce divides large data processing frameworks into smaller ones, distributes the smaller tasks over various nodes, and then executes each task individually.
4) Hadoop Common (Hadoop Core)
Hadoop refers to standard tools and libraries that guide support to other modules, such as Apache Hadoop Framework, HDFS, YARN, and Hadoop MapReduce. Hadoop Core is often referred to as Hadoop Common.
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Benefits of Hadoop
Data defines how businesses can improve their operations. Many industries revolve around data collected and analyzed through multiple methods and technologies. Hadoop is one of the popular tools for extracting information from data, and it has advantages in dealing with big data frameworks. Let’s look at the most common benefits of Hadoop.
1) Cost
This technology is very economical; anyone can access its source code and modify it according to business needs. Hadoop offers cost-effective commodity hardware to create a cost-efficient model, unlike RDBMS, which requires costly hardware and high-end processors to handle extensive data. The issue with RDBMS is that storing extensive data is not cost-effective. As a result, the organization has begun to delete the raw data.
2) Scalable
Hadoop is a highly scalable tool that stores vast amounts of data from a single server to thousands of machines. Users can expand the cluster’s size without downtime by adding new nodes per requirement, unlike RDBMS, which can’t scale to handle the massive data. Hadoop has no limit restrictions on the storage system.
3) Speed
Hadoop operates HDFS to handle its storage, which maps data to any location on a cluster. Speed is a crucial factor when handling a massive amount of unstructured data. With Hadoop, it is possible to access terabytes of data in minutes and petabytes in hours.
4) Flexible
Hadoop is designed to access different datasets, such as structured, semi-structured, and unstructured data, to generate value from those datasets. This means enterprises can use Hadoop software to extract business insights from data sources such as email and social media conversations.
5) Availability
The nature of Hadoop makes it available to everyone who requires it. The enormous open-source community cleared the way for big data processing frameworks to be accessible.
6) Low Network Traffic
This application divides each task into smaller sub-tasks in the Hadoop cluster, which are then assigned to each available data node. Each data node processes some data, leading to minimum traffic in a Hadoop cluster.
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What is Apache Spark?
Apache Spark is an open-source platform for data processing frameworks that can quickly execute data science, data engineering, and machine learning operations on single-node clusters. The Apache Software Foundation released Spark software to speed up the Hadoop computational computing software process. Spark uses Hadoop for processing and storage. Since Spark manages clusters independently, Spark uses Hadoop for storage purposes only.
Apache Spark supports numerous programming languages like Java, R, Scala, and Python. It includes libraries for a wide range of tasks, such as SQL, machine learning, and streaming, and it can be used anywhere from a laptop to a cluster of hundreds of servers. However, it typically runs quicker than Hadoop and processes data using random access memory (RAM) rather than a file system. Moreover, Spark can now handle use cases that Hadoop can’t perform.
Apache Spark is the only processing framework that involves artificial intelligence (AI) and data. It is the most significant open-source project. This allows users to execute cutting-edge machine learning (ML) and artificial intelligence (AI) algorithms after extensive data transformations and analysis.
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Five Main Modules Involving Apache Spark
1) Spark Core
Spark Core underlays an execution engine that coordinates input and output (I/O) activities, schedules, and dispatches tasks.
2) Spark SQL
Spark SQL collects structured data information so users can improve structured data processing.
3) Spark Streaming and Structured Streaming
Spark Streaming and Structured Streaming can increase the capacity for stream processing. Spark Streaming gathers information from several streaming sources and splits it into micro-batches for a continuous stream. Structured Streaming developed on Spark SQL decreases latency and makes programming easy.
4) Machine Learning Library (MLlib)
A group of scalable machine learning algorithms and tools for choosing features and constructing ML pipelines. The main API for MLlib is data frames, which offers consistency across numerous programming languages such as Python, Scala, and Java.
5) GraphX
GraphX is a user-friendly, scalable computation engine that allows the interactive construction, editing, and analysis of graph-structured data.
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Benefits of Spark
Apache Spark can advance big data-related business across industries. It has numerous benefits for dealing with big data, and let’s look at the most common benefits of Spark.
1) Speed
Processing speed is vital for big data. Because of its speed, Apache Spark is incredibly popular among data scientists. Spark is 100 times quicker than Hadoop architecture for processing massive data. It runs in a memory (RAM) computing system, while Hadoop Spark architecture uses local memory space to store data. Spark can process clustered data with over 8,000 nodes and many petabytes.
2) Ease of use
This open-source application provides easy-to-use APIs for working with big data sets. It provides 80 high-level operators that make it simple to create similar apps. We can reprocess the Spark code to join streams with historical data, operate ad hoc stream state queries, and do batch processing.
3) Demand for Big Data
A recent survey by IBM announced that it would train more than 1 million data scientists and engineers in Apache Spark. This is because it offers numerous opportunities for big data and is in high demand among developers.
4) Fault Tolerance
Apache Spark offers fault tolerance through Spark abstraction-RDD. Apache Spark RDDs are created to manage the failure of any cluster worker node. As a result, it ensures that data loss decreases to zero.
5) Real-time Streaming Process
Apache Spark includes a feature for real-time streaming processes. Hadoop MapReduce can only manage existing data, not real-time data. However, we can resolve this issue with Spark Streaming.
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Use Cases of Apache Hadoop and Apache Spark
Apache Hadoop Use Cases
1) Handling Large Datasets
Hadoop’s HDFS excels in managing massive datasets that exceed available memory capacity, enabling storage and processing of historical data, logs, and archives.
2) Data Warehousing and Data Lakes
Hadoop’s HDFS provides scalable storage solutions for constructing robust data warehouses and lakes.
3) Log Analysis and Extract-Transform-Load (ETL)
With Hadoop’s distributed capabilities, organizations can efficiently process, transform, and load vast log files from various sources.
4) Big Data on a Budget
Hadoop utilizes cost-effective hard disks for storage, making it a budget-friendly option for large-scale data storage and processing, especially compared to Spark, which demands more memory.
5) Scientific Data Analysis
Hadoop’s parallel processing power enables the analysis of large scientific datasets on distributed clusters, including climate data, genetic sequences, and astronomical observations.
Apache Spark Use Cases
1) Real-time Stream Data Analysis
Spark excels in processing real-time streaming data, making it ideal for monitoring social media feeds, financial transactions, sensor data, or log streams.
2) Machine Learning Applications
Spark’s MLlib offers a comprehensive set of machine learning algorithms, facilitating the development of recommendation systems, fraud detection models, natural language processing (NLP), and predictive analytics. Its scalability and seamless integration support efficient ML pipelines.
3) Interactive Data Exploration
Leveraging Spark’s SQL-like interfaces, users can rapidly uncover hidden patterns within large datasets for interactive exploration and swift prototyping.
4) Fraud Detection and Anomaly Identification
Spark’s streaming capabilities enable real-time identification of suspicious activities, bolstering system security and mitigating financial losses.
5) Personalized Recommendations
Spark’s efficient processing of large datasets makes it an excellent choice for building accurate and dynamic recommendation systems in e-commerce or entertainment platforms.
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Comparison between Apache Hadoop and Apache Spark
Let’s look at the different parameters between Apache Hadoop and Apache Spark.
| Parameters | Apache Hadoop | Apache Spark |
| Cost | Hadoop runs at a low cost | Spark runs at a high cost |
| Performance | Hadoop is relatively slow because it stores data from numerous sources and uses MapReduce to process it in batches. | Spark is faster as it uses RAM |
| Data processing | It is ideal for linear data and batch processing | It is ideal for live unstructured data stream processing and real-time processing. |
| Security | It is more secure. Hadoop runs various access control and authentication methods. | It is less secure. Spark improves security with shared secret authentication or event logging. |
| Efficiency | It is built to manage batch processing efficiently | It is built to manage real-time data efficiently |
| Fault tolerance | It is a highly fault tolerance system. It uses the data that is replicated among the nodes in the event of a problem. | When a partition fails, it can recreate a dataset by tracking the construction of RDD blocks. To reconstruct data across nodes, Spark can also use a DAG. |
| Scalability | It is simple to scale by adding nodes and disks for storage | It is hard enough to scale because it depends on Ram for computations |
| Supports programming languages | Java, Perl, Ruby, Python, PHP, R, C++, and Groovy | Java, R, Scala, and Python |
| Machine Learning | It is relatively slow | It is faster with in-memory processing |
| Category | It is the data processing engine | It is the data analytics engine |
| Latency | It has high latency computing | It has low latency computing |
| Scheduler | It requires an external job scheduler | It doesn’t require an external scheduler |
| Open source | Yes | Yes |
| Data integration | Yes | Yes |
| Speed | Low performance | High performance (100x faster) |
| Developer community support | Yes | Yes |
| Memory consumption | It depends on the disk | It depends on RAM |
Final Thoughts on Hadoop Vs Spark
Hadoop is excellent for processing multiple sets of massive amounts of data in parallel. Apache Hadoop architecture can store unlimited amounts of data in its cluster. It involves analytical tools such as HBase, MongoDB, Apache Mahout, Pentaho, and R Python.
Spark is suitable for analyzing real-time data from multiple sources, such as sensors, the Internet of Things (IoT), and financial systems. Analytics can also be utilized to target particular groups for machine learning and media campaigns. Spark has been tested 100 times quicker without modifying code than Hadoop Hive.
Apache Hadoop and Apache Spark have prominent analytics and extensive data processing features. With 2,000 developers from 20,000 organizations, including 80% of the Fortune 500, Apache Spark has a thriving and active community.
At the same time, Hadoop technology is implementing in multiple industries such as healthcare, education, government, banking, communication, and entertainment. As a result, there are clear enough for both to grow and numerous use cases for each of these open-source technologies.
However, adopting both Hadoop and Spark technologies is laborious, so companies seek Vertis’s services. Veritis, the Stevie and Globee Business Awards winner, is an IT consulting services provider partnering with small to large companies, including Fortune 500 firms, for over a decade. We offer the best solutions for customers with world-class experiences and cost-effective solutions.
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