ClickHouse Performance Archives

SQL Antipatterns in ClickHouse

Analyzing Common SQL Antipatterns in ClickHouse and Best Practices for High Performance ClickHouse is renowned for its ability to process trillions of rows in milliseconds, making it a powerhouse for real-time analytics. However, this performance […]

When Not to Use ClickHouse

ChistaDATA Inc.

When Not to Use ClickHouse: Understanding the Limits of a Powerful Analytics Engine ClickHouse has emerged as a powerhouse in the world of analytics databases, renowned for its blistering speed in processing large-scale analytical queries. […]

Monitoring Merge Queues in ClickHouse

Shiv Iyer

Monitoring Merge Queues in ClickHouse: Detecting and Resolving Merge Pressure ClickHouse, renowned for its high-performance columnar storage and analytical query capabilities, relies heavily on its underlying Log-Structured Merge-Tree (LSM-Tree) architecture to achieve exceptional write throughput […]

Using system.query_thread_log for Low-Level ClickHouse Performance Insights

ChistaDATA Inc.

Using system.query_thread_log in ClickHouse for Low-Level Performance Insights Introduction to Thread-Level Query Analysis In the realm of high-performance analytical databases, ClickHouse stands out for its ability to process massive datasets at lightning speed. However, as […]

Setting Up ClickHouse Alerts: Detecting Performance Degradation Before It Impacts Users

ChistaDATA Inc.

Setting Up ClickHouse Alerts: Detecting Performance Degradation Before It Impacts Users ClickHouse is a powerful column-oriented database management system designed for real-time analytical processing, capable of handling massive datasets with exceptional speed. However, like any […]

ClickHouse Complete Guide to LowCardinality

ChistaDATA Inc.

ClickHouse Complete Guide to LowCardinality: When and How to Use It Introduction ClickHouse, the high-performance columnar database management system, offers a specialized data type called LowCardinality that serves as a powerful optimization tool for specific […]

Setting up Alerts in ClickHouse for Performance Troubleshooting

ChistaDATA Inc.

Setting Up Alerts: Detecting ClickHouse Performance Degradation Before It Impacts Users Proactive alerting is a critical operational practice that prevents incidents by identifying performance degradation before it affects end users 4. This comprehensive guide demonstrates […]

ClickHouse Storage Tiering Best Practices: Moving Data Between Hot and Cold Storage with TTL

ChistaDATA Inc.

ClickHouse Storage Tiering Best Practices: Moving Data Between Hot and Cold Storage with TTL Efficient data management is critical for modern analytical databases, especially when dealing with large volumes of time-series or event-driven data. ClickHouse, […]

Troubleshooting Disk Space in ClickHouse

ChistaDATA Inc.

Troubleshooting Disk Space Issues: Managing ClickHouse Log Tables ClickHouse is a high-performance, columnar database management system optimized for real-time analytical workloads. While its speed and scalability make it ideal for large-scale data processing, one common […]

ClickHouse Search: Manticore Full Text Search with Plain Index

Essential ClickHouse Metrics

ChistaDATA Inc.

Essential ClickHouse Metrics: What to Monitor for Optimal Performance ClickHouse, the high-performance columnar database management system, exposes over 1,000 metrics for monitoring and observability 5. With such an extensive array of available metrics, selecting the […]

* Everything changes over time – Our blogs/posts and comments changes over time, That’s how it should be! Whatever we comment from ChistaDATA Inc. Teams (including Shiv Iyer) and other stakeholders or guest bloggers posted here are never permanent, These things worked for us. But, there is no guarantee they will work for you too, When using the recommendations from ChistaDATA or MinervaDB or MinervaSQL or any other online resources / Google, You must test the advice before applying them to your production systems, and always invest for a robust Database DR solution, Thank you for understanding.

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