How to build a data lake on AWS with Acid Tango

Software Development • Dec 14, 2023

Yes, data has become the cornerstone of business growth and innovation. As companies of all sizes and across various industries increasingly rely on data-driven insights to make informed decisions, the importance of efficient data management systems has never been more pronounced. This is where the concept of a data lake, particularly an AWS Data Lake, becomes crucial.

Amazon Web Services (AWS), as a leading cloud service provider, offers robust and scalable solutions for building a data lake. A data lake is a centralized repository that allows you to store all your structured and unstructured data at any scale.

Regardless of the industry—be it technology, healthcare, finance, or retail—every organization can derive significant value from a well-implemented data lake. From gaining insights through advanced analytics to improving operational efficiencies and fostering innovation, the benefits are manifold.

In this article, we at Acid Tango will dive deep into the world of AWS Data Lakes. We’ll explore what they are, why they are an optimal choice for your data management needs, and how they can bring about transformational benefits to your company.

Join us as we embark on this journey to unlock the potential of your data with AWS!

What is a Data Lake?

First of all, let's talk about a data lake.

As we mentioned before, a data lake is essentially a central repository designed to store, process, and manage massive volumes of data, both structured and unstructured. This versatility sets it apart from traditional databases and data warehouses, which often have limitations in handling diverse data types or scaling efficiently with increasing data volumes.

At its core, a data lake comprises two primary entities:

Data producers: They are the sources of data. They can be various systems, sensors, or applications that generate, process, and feed data into the data lake. Their role is pivotal in ensuring that the data lake is stocked with relevant and up-to-date information.
Data consumers: These can be individuals like data analysts and scientists, or entities like machine learning models and other applications. They access and utilize this data for various purposes, ranging from simple data querying to complex data analytics and predictive modeling.

One of the unique features of a data lake is its flexible architecture. Unlike more rigid traditional data storage solutions, a data lake can easily adapt to accommodate a wide array of data formats and types.

This flexibility is particularly important in today's data-driven world, where the nature and volume of data can vary dramatically.

When we talk about an AWS Data Lake, we're referring to a data lake that's built and managed on the Amazon Web Services (AWS) cloud platform. AWS provides a range of tools and services like Amazon Athena and Amazon Redshift, which are specifically designed for effective data querying and analysis within a data lake environment.

These tools enhance the data lake’s capabilities, making it not just a storage repository, but a powerful engine for insight generation and decision-making. Let’s talk more about it.

Why should you choose an AWS Data Lake?

When considering the establishment of a data lake, Amazon Web Services (AWS) emerges as a premier choice for numerous reasons. Let's explore the compelling factors that make AWS Data Lakes an optimal solution for modern data management needs.

Scalable and Cost-Effective Storage: AWS Data Lakes leverage Amazon Simple Storage Service (S3) as their foundational storage layer. S3's limitless scalability and attractive cost economics make it ideal for handling vast amounts of data. Whether dealing with gigabytes or petabytes, S3 adjusts seamlessly to your storage requirements.
Flexible Data Lake Architecture: The architecture of an AWS Data Lake is inherently scalable and cost-effective. It allows for the storage of raw, unprocessed data in its native format, which is essential for diverse data types. The flexibility to store and process data as needed is a significant advantage over traditional data storage methods.
Robust Data Ingestion Capabilities: AWS provides a suite of tools for efficient data ingestion, catering to various sources and scales. Services like AWS Glue, AWS Data Pipeline, AWS Database Migration Service (DMS), and AWS Snowball facilitate seamless data transfer and integration into the data lake.
Advanced Data Cataloging and Management: AWS Glue serves as a powerful tool for data cataloging and ETL (extract, transform, load) processes. It automatically discovers and catalogs data, making it easily accessible for querying and analysis. This automatic metadata management simplifies data discovery and utilization.
Effective Data Governance and Security: AWS ensures high standards of data governance and security. Features like encryption, IAM (Identity and Access Management) policies, and AWS CloudTrail integration provide robust protection and compliance capabilities, ensuring data integrity and security.
Comprehensive Data Analytics and Machine Learning Services: AWS Data Lakes are not just about storage; they're also about insight generation. Services like Amazon Athena and Amazon Redshift enable sophisticated data querying and analysis.
Infrastructure Management Simplification: By choosing AWS, you alleviate the burden of managing on-premises infrastructure. The cloud-based nature of AWS Data Lakes reduces engineering and operational costs and provides the flexibility to adapt to new use cases.
Broad Service Portfolio for End-to-End Data Solutions: AWS’s extensive range of services, including data ingestion tools like Amazon Kinesis and AWS Direct Connect, enhances the functionality and efficiency of the data lake. AWS Glue’s searchable catalog and AI services add layers of intelligence and accessibility to your data.

Benefits for your company with an AWS Data Lake

Yes, implementing an AWS Data Lake in your organization can revolutionize how you handle data, leading to significant benefits across various departments. These advantages are not limited to a specific industry but apply to a wide range of sectors.

Enhanced Real-Time Data Access: An AWS Data Lake facilitates the acquisition and analysis of real-time data. This immediate access to data empowers your business to make timely, informed decisions.
Improved Data Analytics and Predictive Modeling: The ability to efficiently perform data analytics and create predictive models is greatly enhanced. AWS Data Lake simplifies the process of deriving insights from large datasets, helping your company anticipate market trends and customer needs.
Unified Data Interpretation: With a centralized data repository, your company can ensure consistent interpretation of data across different departments. This unified approach to data analysis ensures coherence in strategic decisions.
Optimized Data Knowledge and Flow: An AWS Data Lake promotes a deeper understanding of the context and domain of your business data. This understanding leads to optimized data structures and flows, contributing to a data-centric culture within your organization.
Reduction in Ad-Hoc Reporting: The need for creating ad-hoc reports is significantly reduced as AWS Data Lake provides comprehensive and customizable data reporting capabilities.
Shift from Data Searching to Data Analysis: Employees spend less time searching for data and more time analyzing it, leading to higher productivity and more profound insights.

And this is not over. You can also gain several departmental benefits:

Finance: More stable and reliable data for planning and control.
Legal: Dependable data for financial reporting and streamlined audit processes.
Sales and Marketing: Enhanced understanding of business trends, enabling better targeting of sales efforts and marketing strategies.
Customer Service: Improved customer data access, allowing for better segmentation and efficient information delivery.
Internal Control: Enhanced understanding of company performance across all areas.

And what about stakeholder benefits?

Investors: Access to reliable data and statistics for informed business decisions, smoother audits, and more automated reporting processes.
Employees: A comprehensive understanding of the company’s data architecture, leading to better collaboration and reporting capabilities. Operational teams benefit from data governance optimizations like enhanced route planning and performance statistics.
Clients: Indirect benefits through improved service performance and quality, and direct benefits from easier access to relevant data and statistics.

In summary, an AWS Data Lake not only transforms the way data is stored and managed but also brings about a holistic improvement in various aspects of business operations.

Implementing a data lake architecture with AWS Glue

Implementing a data lake architecture on AWS involves a series of strategic steps, utilizing various AWS services to ensure efficient data management, security, and accessibility.

Data Integration and Master Data Generation: AWS Glue plays a pivotal role in integrating and generating master data. This process involves managing shared data to reduce redundancy and ensure higher data quality through standardized definitions and usage.
Data Referencing and Deduplication: For handling referential data, AWS Glue Data Catalog is utilized, while AWS Lake Formation FindMatches is employed for automating the identification and deduplication of records, streamlining data accuracy.
Business Rule Implementation: Business rules are formulated using Amazon Simple Workflow Service and AWS Step Functions, integrating multiple execution models to govern the data flow effectively.
Data Model: This includes acquisition, extraction, transformation, movement, delivery, replication, federation, virtualization, and operational support. Data migration and transfer are facilitated using AWS Database Migration Service for databases, AWS Transfer for SFTP for file transfers, and AWS Data Exchange for third-party data sources.
Data Flow Orchestration and Management: AWS Step Functions and AWS Glue Workflows are instrumental in orchestrating and managing data flows, ensuring seamless data integration and processing.
Data Architecture: AWS Glue Data Catalog is used for discovering data and storing associated metadata, like table definitions and schemas. Once cataloged, these data assets can be easily searched, queried, and utilized in ETL processes.
Data Warehouse Storage and Operations: Amazon Redshift, a fully managed data warehouse, enables large-scale data analysis using SQL and standard business intelligence tools. Amazon EMR is another option for parallel processing, especially with Hive and Presto support.
Data Security, Quality, and Risk Management: Data profiling is conducted using Deequ, a library built on Apache Spark for defining data unit tests. Machine Learning Transforms are used for automatic data deduplication and risk identification. AWS Lake Formation centralizes data security, governance, and audit policies, supplemented by AWS KMS for encryption key management, AWS IAM for user management, and AWS Single Sign-on for authentication.
Document and Content Storage: Amazon S3 is the primary repository for unstructured data storage, while Amazon DynamoDB can handle formatted data such as JSON or API-derived data. Elasticsearch Service is suitable for complex search capabilities.
Metadata Management: AWS Glue Data Catalog manages both technical (e.g., formats, record sizes, partitions) and business metadata (e.g., data owners, table and column descriptions), with tagging capabilities for both technical and business aspects, and data lineage features. Metadata can be captured using AWS Lambda and stored in Amazon DynamoDB or Amazon Elasticsearch Service.
Business Intelligence: The final phase involves reporting capabilities. Amazon Athena allows for interactive querying of data in Amazon S3 using standard SQL. For data visualization, tools like Tableau or Amazon Quicksight can be used to create and distribute visualizations across the organization.

How does Acid Tango build an AWS Data Lake with you? Next steps

At Acid Tango, our approach to building an AWS Data Lake is a collaborative and tailored process, ensuring that the solution perfectly aligns with your unique business requirements.

Analysis Phase

We start with an in-depth analysis of your data sources and structures. This involves identifying data flows, how they are managed, and potential duplicities.

As a result, we gain a deeper understanding of the true sources of your data, domain contexts, real-time statistics needs, and reporting requirements.

This phase may include a review and refinement of your domain model and ubiquitous language to ensure business needs are consistently represented across all projects.

Planning Phase

Based on the insights from the analysis, we design a strategic implementation plan. This includes determining how data consumption middleware will read information from various sources, where and how data transformation processes will run, and the architecture and technology needed for efficient data representation.

We also plan and document potential code and process refactoring requirements.

Implementation Phase

The implementation is carried out in phases, integrating the new system for data reading, adaptation, integration, and presentation.

We ensure that this system is efficient for real-time statistics, cost-effective, and does not interfere with the performance of current systems. This phase also includes training for your team and necessary meetings to explain data models and information architecture.

During implementation, we establish a data governance framework, addressing aspects such as:

Integration and generation of master data
Data modeling
Data architecture
Data storage and operations (Data Warehouse)
Data security, quality, and risk management
Document and content management
Metadata management
Business Intelligence

Following this, we prioritize different business cases based on your needs, such as customer segmentation, demand planning, and comprehensive supplier information.

Acid Tango understands the critical role of data in driving business success. We are here to assist you in building an AWS Data Lake that transforms how your company accesses, analyzes, and leverages data. If you're ready to elevate your data management capabilities, contact us to discover how we can unlock the true potential of your data.