How to choose the Right OLAP Storage

Aleh Belausau
Towards Data Engineering
6 min readFeb 27, 2024

In the realm of OLAP storage solutions, organizations face the crucial task of selecting a platform that aligns seamlessly with their specific needs and goals. The complexity of this decision requires a careful examination of various metrics, each playing a vital role in evaluating the efficiency, flexibility, and overall performance of an OLAP storage system. Let’s delve into the significance of key metrics that should be considered when making this critical choice, along with a suggested approach for measurement.

Photo by Alexander Schimmeck on Unsplash

What is OLAP Storage?

What is online analytical processing? Online analytical processing (OLAP) is software technology you can use to analyze business data from different points of view. In OLAP scenarios, datasets can be massive — billions or trillions of rows. Data is organized in tables that contain many columns, and only a few columns are selected to answer any particular query. Results must be returned in milliseconds or seconds. Basically, OLAP storage refers to storage optimized for analytical workloads.

Storage Architecture & Semi-Structured Data Support

1. Storage Format:

Importance: Determines how data is organized and stored. A suitable storage format can significantly impact query performance and analytical capabilities.

How to Measure: Assess the compression ratio, query speed, and storage overhead of the chosen format compared to alternatives. Conduct benchmark tests to evaluate real-world performance on representative workloads.

2. Separation of Compute and Storage:

Importance: Allows for independent scaling of compute and storage resources. This separation enhances flexibility, cost-efficiency, and scalability, enabling organizations to adapt to changing workloads.

How to Measure: Evaluate the ease of scaling compute and storage independently. Measure the impact on performance during scaling events, assessing how the system adapts to varying resource demands.

3. Semi-Structured Data Support:

Importance: Addresses the need to handle diverse data types and formats, including semi-structured data like JSON. This support ensures versatility in accommodating different data sources.

How to Measure: Test the system’s ability to ingest, query, and analyze semi-structured data. Measure performance on tasks involving varied data types and formats.

Deployment & Pricing

1. Deployment Model:

Importance: Defines how the OLAP storage solution can be deployed, whether as a single instance, a cluster, or on cloud platforms. The deployment model impacts scalability, availability, and ease of management.

How to Measure: Evaluate deployment options based on organizational needs. Measure deployment time, ease of configuration, and the system’s adaptability to different infrastructures.

2. Fully Managed Service Option:

Importance: Offers a hassle-free experience by providing automated scaling, backups, and monitoring. Fully managed services reduce operational overhead and simplify the maintenance of the OLAP storage solution.

How to Measure: Assess the level of automation provided. Measure the time saved on routine tasks, the efficiency of automated scaling, and the system’s responsiveness to monitoring alerts.

3. Scalability:

Importance: Determines the ability of the storage solution to handle increasing workloads. Scalability is crucial for accommodating growing data volumes and user demands without compromising performance.

How to Measure: Conduct scalability tests under various loads to identify bottlenecks. Measure the system’s ability to handle increased data volumes and concurrent user queries.

4. Pricing Model:

Importance: Impacts the total cost of ownership. Understanding the pricing model helps organizations plan and budget effectively, ensuring that the chosen OLAP storage solution aligns with financial considerations.

How to Measure: Calculate the total cost of ownership, considering both upfront and ongoing costs. Assess the transparency of the pricing model and its alignment with usage patterns.

Management

1. Community/Support:

Importance: A strong community and support ecosystem contribute to problem resolution, knowledge sharing, and the overall success of implementing and maintaining the OLAP storage solution.

How to Measure: Evaluate the size and activity of the user community. Measure response times and effectiveness of support channels, such as forums, documentation, and official support.

2. Documentation:

Importance: Comprehensive documentation is vital for users to understand the features, configurations, and best practices of the OLAP storage solution. It serves as a valuable resource for both new and experienced users.

How to Measure: Assess the completeness, clarity, and relevance of the documentation. Measure the time required for users to find information and solve problems using the provided documentation.

3. Ease of Management:

Importance: Reflects the simplicity or complexity of managing the OLAP storage solution. Easy management contributes to efficient operations, reducing the need for specialized expertise.

How to Measure: Evaluate the user interface, automation capabilities, and the learning curve for system management tasks. Measure the time and effort required for routine administrative tasks.

4. Team Competency:

Importance: Evaluates the level of expertise required to operate and manage the OLAP storage solution. Matches the technical proficiency of the team with the system’s complexity.

How to Measure: Assess the learning curve for team members. Measure the effectiveness of training resources provided by the solution and the ability of the team to troubleshoot issues independently.

5. SQL Support:

Importance: Ensures compatibility with existing tools and workflows, allowing users to leverage their SQL skills for querying and analyzing data within the OLAP storage system.

How to Measure: Test the compatibility with SQL standards and measure the ease of translating existing SQL queries to the OLAP storage system. Assess the level of support for advanced SQL features.

Integration

1. Supported Data Sources:

Importance: Examines the range of data sources the OLAP storage solution can integrate with. Compatibility with various data sources enhances flexibility in data ingestion.

How to Measure: Test the system’s ability to ingest and process data from diverse sources. Measure the ease of integration with common data pipelines and sources.

2. Compatibility with your ecosystem:

Importance: Highlights compatibility with specific technologies, frameworks, and tools, for Example Microsoft Ecosystem. Integration with Azure services, support for .NET SDK, and visualization tool compatibility enhance the solution’s versatility.

How to Measure: Evaluate the depth and ease of integration with specific technologies. Measure the time and effort required to set up integrations and assess the flexibility provided.

3. Cloud Services Integration:

Importance: Highlights the compatibility of the OLAP storage solution with Cloud services. Integration with Cloud services enhances versatility and facilitates seamless data management within the Cloud ecosystem.

How to Measure: Evaluate the extent of integration with Cloud services, such as data storage, analytics, and machine learning. Measure the ease of setup, data transfer efficiency, and the ability to leverage Cloud-specific features.

4. SDK Support:

Importance: Centers around the support for Software Development Kits (SDKs). Comprehensive SDK support is critical for compatibility with various programming languages and streamlining the development and integration processes.

How to Measure: Evaluate the breadth of SDK support, considering functionalities and ease of use. Measure the time and effort required for developers to integrate the OLAP storage solution into applications using the available SDKs.

5. Supported Visualization Tools:

Importance: Addresses compatibility with visualization tools. The ability to work seamlessly with popular visualization tools enhances the solution’s utility for data analysis and reporting.

How to Measure: Evaluate the out-of-the-box compatibility with visualization tools such as Tableau, Power BI, or others. Measure the ease of integration, supported features, and the overall user experience when visualizing data through these tools.

Performance

1. Insert, Updates, Join, Aggregation Performance:

Importance: Evaluates the speed and efficiency of key operations. Performance metrics impact the system’s responsiveness, making it crucial for analytical workloads.

How to Measure: Conduct performance tests for each operation type. Measure query response times, throughput, and resource utilization under various scenarios.

2. Materialized View Support:

Importance: Addresses the capability of the OLAP storage solution to handle materialized views. Materialized views store precomputed results, improving query performance and reducing the need for repetitive computations.

How to Measure: Test the efficiency of creating, updating, and querying materialized views. Measure the impact on overall query response times and assess the system’s ability to automatically maintain the freshness of materialized data.

3. Indexing:

Importance: Examines the support for indexing strategies within the OLAP storage solution. Proper indexing enhances query performance by facilitating rapid data retrieval based on specified criteria.

How to Measure: Evaluate the effectiveness of indexing mechanisms provided. Measure query performance with and without indexes, considering factors like query speed, resource utilization, and the impact on write operations.

4. Streaming Ingestion:

Importance: Focuses on the system’s capability to handle real-time data ingestion through streaming. Streaming ingest support is crucial for applications that require up-to-the-minute insights and analytics.

How to Measure: Test the system’s performance during real-time data ingestion scenarios. Measure the latency, throughput, and scalability of the streaming ingest feature, ensuring it aligns with the organization’s real-time analytics requirements.

Conclusion

Choosing the right OLAP storage solution is crucial for optimizing data analytics capabilities. The metrics outlined in this guide offer a structured approach for you to assess and compare OLAP storage solutions effectively. You should remember that this decision impacts efficient data processing, cost-effective scalability, versatility in data handling, operational efficiency, compatibility, performance, and total cost of ownership. By carefully considering these metrics, you can make informed decisions, aligning your storage solutions with specific needs and long-term strategic goals.

To enhance your proficiency in data management, explore the Strategic guide on mastering data for software developers.

Thank you for your attention, and best of luck!

--

--

Aleh Belausau
Towards Data Engineering

Data and Software Engineer specializing in using cloud technologies for business growth. https://www.linkedin.com/in/aleh-belausau/