What it is, key features, and benefits. This guide provides a definition and practical advice to help you understand data lake architecture.
The modern data lake architecture provides rapid data access and analytics by having all necessary compute resources and storage objects internal to the data lake platform. Traditional data lake architectures offered slower performance by storing data in an external data repository that needed to be replicated to another storage-compute layer for analytics.
A data lake is a data storage strategy that consolidates your structured and unstructured data from a variety of sources. This provides a single source of truth for different use cases such as real-time analytics, machine learning, big data analytics, dashboards, and data visualizations to help you uncover insights and make accurate, data-driven business decisions.
Here six main advantages of a data lake vs data warehouse:
Ultimately, a data lake can transform your organization’s use of data and democratize access to data, improving data literacy for all. Learn more about data lakes.
Data lakes employ a flat architecture, allowing you to avoid pre-defining the schema and data requirements and instead store raw data at any scale without the need to structure it first. You achieve this by using tools to assign unique identifiers and tags to data elements so that only a subset of relevant data is queried to analyze a given business question.
These tools, such as Snowflake, Azure, AWS, and Hadoop, vary in specific capabilities. Therefore, your system’s detailed physical structure will depend on which tool you select.
High-level data lake architecture diagram:
Your data teams can build ETL data pipelines and schema-on-read transformations to make data stored in a data lake available for data science and machine learning and for analytics and business intelligence tools. Or, managed data lake creation tools help you achieve this without the limitations of slow, hand-coded scripts and scarce engineering resources.
Modern data lake architectures are cloud-based and provide rapid data access and analytics by having all necessary compute resources and storage objects internal to the data lake platform. They also isolate workloads and allocate resources to the prioritized jobs, helping you avoid user concurrency issues from slowing down analyses across your organization. Here are the key features of a cloud data lake architecture:
Get an unbiased, side-by-side look at all the major cloud data lake vendors, including AWS, Azure, Google, Cloudera, Databricks, and Snowflake.
You want to make use of the massive amounts of data that are coming from a wide variety of data sources. Here are the key challenges you’ll face in your data lake architecture:
Query performance is often limited with concurrency and scalability issues. Also, a complex architecture can result in broken data pipelines, performance degradation (such as slow transformation), and error-prone data movement outside of your data lake. These errors, plus a rigid architecture can result in governance and security risks.
The last, but not least, challenge is data ingestion. Ingesting and integrating data from hundreds or even thousands of diverse sources can be overwhelming. When moving information to a data lake, many sources require custom coding and individual agents. This can quickly drain your IT resources. Moving data to a data lake can also have a negative impact on source systems, causing disruption and loss of data availability. Big data analytics tools that have universal and real-time data ingestion capabilities can speed and simplify ingestion of data from a wide variety of data sources, including live data streams.
As stated above, a key challenge in deploying a data lake is that traditional data integration processes are limited by slow, hand-coded scripts and scarce engineering resources.
Managed data lake creation offers a fully automated approach to end-to-end data lake or data lakehouse creation. This automates your entire data lake pipeline, from real-time ingestion to processing and refining raw data and making it available to consumers.
The best solutions allow you to easily build and manage agile data pipelines with support for all major data sources and cloud targets without writing any code. They also offer zero-footprint change data capture technology that delivers data in real-time without impacting your production systems and end-to-end lineage, so you can fully trust your data.
Lastly, your data lake should have a secure enterprise-scale data catalog that provides data consumers with a governed data marketplace to search, understand and shop for curated data.
Learn more about managed data lake creation.
Snowflake’s cloud data platform provides accessibility, performance and scale to complement your data lake. As shown below, you can mix components of date lake patterns.
Here are the key benefits of Snowflake:
To take full advantage of Snowflake and ease implementation, you’ll need world class data ingestion.
Top data ingestion tools allows you to continuously ingest data from multiple sources to your Snowflake platform with zero downtime and in real-time. They also bring change data capture (CDC) technology that ensures that you’re always working with real-time data while streamlining operations and minimizing the impact on production systems.
Learn more about ingestion into Snowflake.
Modern data integration delivers real-time, analytics-ready and actionable data to any analytics environment, from Qlik to Tableau, Power BI and beyond.