ClickHouse — Technology Profile & Architecture

Core Information

#core_information

Name, description, vendor website, logo, technology type and tags.

Overview & Role

ClickHouse is an open-source, column-oriented database management system (DBMS) for online analytical processing (OLAP). It is designed for high-performance analytics on large volumes of data, offering incredibly fast query execution and real-time reporting capabilities. Its columnar storage and parallel processing architecture make it highly efficient for analytical workloads.

Domain Classification & Tags

Analytics Relational Dwh

Performance Profile

#performance_profile

Typical read and write throughput, payload size and processing latency.

Read Performance Profile

Throughput: Millions to billions of rows/sec, hundreds of MB/sec to several GB/sec

Payload Size: Varies widely, from single rows (tens of bytes) to large analytical queries returning MBs or GBs of data

Processing Latency: Sub-100 ms for simple queries, hundreds of ms to seconds for complex analytical queries

Write Performance Profile

Throughput: Tens of thousands to hundreds of thousands of rows/sec per core, hundreds of MB/sec to several GB/sec

Payload Size: Typically small rows (tens to hundreds of bytes) in large batches

Processing Latency: Tens of milliseconds for batch commits, sub-second for individual inserts (though batching is preferred)

Architecture Diagram

#architecture_diagram

Reference diagram of the technology's internal architecture.

Component Architecture & Topology

Features

#features

Catalogued product capabilities and what each one does.

Empirical data for features is currently being compiled in the global catalog.

Typical Use Cases

#typical_use_cases

Scenarios the technology is commonly chosen for.

Empirical data for typical use cases is currently being compiled in the global catalog.

Known Customers

#known_customers

Publicly referenced organisations using the technology.

Empirical data for known customers is currently being compiled in the global catalog.

Known Integrations

#known_integrations

Other products and services it is documented to work with.

Empirical data for known integrations is currently being compiled in the global catalog.

Connectors

#connectors

Directional data connections to other technologies, with direction and maturity.

Empirical data for connectors is currently being compiled in the global catalog.

Reference Architectures

#reference_architectures

Published architectures where the technology is used or mentioned.

No published reference architecture blueprints currently link to ClickHouse.

Security Features

#security_features

Built-in security and access-control capabilities.

Empirical data for security features is currently being compiled in the global catalog.

Known Issues

#known_issues

Documented limitations, defects and operational pitfalls.

Empirical data for known issues is currently being compiled in the global catalog.

Guidelines

#guidelines

Recommended practices for adopting and operating the technology.

Empirical data for guidelines is currently being compiled in the global catalog.

Standards & Compliance

#standards_and_compliance

Standards, certifications and control requirements it maps to.

Empirical data for standards & compliance is currently being compiled in the global catalog.

Sources

#sources

Documentation and research references behind the recorded information.

Empirical data for sources is currently being compiled in the global catalog.

Expert Validation

#expert_validation

Whether domain experts reviewed and confirmed the content.

Empirical data for expert validation is currently being compiled in the global catalog.