Explore ClickHouse Insights on ChistaDATA's Blog

Comprehensive Guide for ClickHouse Storage Infrastructure Optimization

Introduction Mastering ClickHouse storage optimization is the key to unlocking unparalleled data analytics performance. Optimizing ClickHouse storage infrastructure is vital to ensure the database performs at its best, especially for large-scale data analytics tasks. ClickHouse […]

Demystifying Data Compression in ClickHouse

Shiv Iyer

Introduction “Compressing data is like putting it on a diet; it becomes leaner and faster.” – Unknown Data compression plays a pivotal role in optimizing storage and query performance in any database system, and ClickHouse […]

Troubleshooting High CPU Usage in ClickHouse

Shiv Iyer

Introduction “Don’t watch the clock; do what it does. Keep going.” – Sam Levenson High CPU usage in ClickHouse can be a common challenge, especially when dealing with large datasets and complex queries. It can […]

Materialized Views in ClickHouse for Optimal Server Performance

Shiv Iyer

Introduction ClickHouse, an open-source columnar database management system, is renowned for its ability to handle massive volumes of data while delivering high-performance analytics. However, in real-time analytics scenarios, even ClickHouse can face challenges when it […]

ClickHouse for Vector Search & Storage: Part 2

ChistaDATA Inc.

Introduction We have seen how to store vectors and perform vector similarity searches in this blog post. In this part 2, we look at various vector search and and storage algorithms available in ClickHouse. Annoy […]

Mastering Index Selection and Troubleshooting in ClickHouse

Shiv Iyer

Introduction Index selection is a critical aspect of database optimization in ClickHouse. Efficient indexes can significantly speed up query execution, but what happens when your queries aren’t using indexes as expected? In this guide, we’ll […]

ClickHouse Monitoring: How to add ClickHouse to Percona Monitoring & Management

ChistaDATA Inc.

Introduction Percona Monitoring and Management (PMM) is a powerful tool that simplifies database monitoring, providing valuable insights into the performance of your database servers. If you’re using ClickHouse, an open-source columnar database management system, integrating […]

Deep Dive into ClickHouse Streaming and Blocking Operators

Shiv Iyer

Introduction In the realm of data processing, efficiency and performance are paramount. ClickHouse, a popular columnar database management system, employs a variety of operators to optimize queries. Two pivotal ClickHouse Operators – the ClickHouse Streaming […]

How to Recover ClickHouse After ZooKeeper Metadata is Corrupted?

ClickHouse for Vector Search & Storage: Part 1

ChistaDATA Inc.

Introduction ClickHouse is a well-known, lightning-fast columnar data store. ClickHouse is primarily used for storing analytical data in tabular format. With the recent advancements in AI and Machine learning, there is a rapid increase in […]

ClickHouse Troubleshooting: Unraveling Dirty Reads in Index Scans

Shiv Iyer

Data integrity is the compass in the maze of dirty reads. Navigate wisely with ClickHouse. 🧭🔍 #ClickHouse #DataIntegrity Introduction: In the world of data, the term “dirty read” sounds like a suspenseful thriller. But in […]