Explore ClickHouse Insights on ChistaDATA's Blog

ClickHouse Horizontal Scaling: Optimal Read-Write Split Configuration and Execution

Scaling ClickHouse horizontally while optimizing the split between read and write operations is a multi-step process that involves setting up a cluster with sharded and replicated tables.

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ClickHouse Search: Case-sensitive Searches with UPPER & LOWER Functions

Shiv Iyer

Implementing a case-sensitive search in ClickHouse, a column-oriented database management system, can be achieved by using the UPPER or LOWER functions. These functions convert text data to either uppercase or lowercase, respectively, allowing for a consistent comparison.

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Overview of ClickHouse Architecture and Query Performance Techniques

Shiv Iyer

Introduction Understanding the internals of ClickHouse reveals why it’s renowned for its exceptional performance, especially in the realm of online analytical processing (OLAP). ClickHouse is a column-oriented database management system (DBMS) that employs a suite […]

ClickHouse Performance: Indexing and SQL Engineering for Cost-Efficiency

Shiv Iyer

The landscape of cloud-based database application development has been rapidly evolving, and with it, the importance of optimal SQL engineering and efficient indexing has become more pronounced than ever.

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ClickHouse Server Configuration for High-Volume Data Ingestion

Shiv Iyer

Optimizing ClickHouse for high-velocity and high-volume data loading involves several server configuration and tuning techniques.

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Tuning index_granularity for ClickHouse Performance

Shiv Iyer

Understanding index granularity is crucial for troubleshooting performance issues in ClickHouse, especially when it comes to optimizing how ClickHouse uses indexes for query execution.

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Troubleshooting Underutilized ClickHouse Index

ClickHouse Troubleshooting: Why is ClickHouse Index Underutilized?

Shiv Iyer

If a ClickHouse index is not being utilized for existing data, leading to full table scans even after creating the index, several factors could be at play.

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ClickHouse MergeTree: Overview of ClickHouse Storage Engines

Shiv Iyer

Introduction ClickHouse supports several storage engines, each optimized for different use cases. Understanding the characteristics of each engine can help you choose the right one for your specific needs, thereby improving performance. ClickHouse MergeTree Engine […]

ClickHouse Configuration: Tuning max_insert_threads and max_bytes_before_external_group_by

Shiv Iyer

Introduction Configuring max_insert_threads and max_bytes_before_external_group_by in ClickHouse requires an understanding of your server’s hardware capabilities and your specific workload requirements. These settings play a crucial role in how ClickHouse manages memory and parallelism, especially during insert operations and GROUP […]

Impact of ClickHouse External Cache on Internal Cache Efficiency

ClickHouse Troubleshooting: Impact of External Cache on Internal Cache Efficiency

Shiv Iyer

By understanding ClickHouse’s caching behaviors and leveraging its internal caching mechanisms effectively, you can optimize performance and avoid potential conflicts with external caching solutions.

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Blog

ClickHouse Horizontal Scaling: Optimal Read-Write Split Configuration and Execution

ClickHouse Search: Case-sensitive Searches with UPPER & LOWER Functions

Overview of ClickHouse Architecture and Query Performance Techniques

ClickHouse Performance: Indexing and SQL Engineering for Cost-Efficiency

ClickHouse Server Configuration for High-Volume Data Ingestion

Tuning index_granularity for ClickHouse Performance

ClickHouse Troubleshooting: Why is ClickHouse Index Underutilized?

ClickHouse MergeTree: Overview of ClickHouse Storage Engines

ClickHouse Configuration: Tuning max_insert_threads and max_bytes_before_external_group_by

ClickHouse Troubleshooting: Impact of External Cache on Internal Cache Efficiency