Articles by ChistaDATA Inc.

About ChistaDATA Inc.

We are an full-stack ClickHouse infrastructure operations Consulting, Support and Managed Services provider with core expertise in performance, scalability and data SRE. Based out of California, Our consulting and support engineering team operates out of San Francisco, Vancouver, London, Germany, Russia, Ukraine, Australia, Singapore and India to deliver 24*7 enterprise-class consultative support and managed services. We operate very closely with some of the largest and planet-scale internet properties like PayPal, Garmin, Honda cars IoT project, Viacom, National Geographic, Nike, Morgan Stanley, American Express Travel, VISA, Netflix, PRADA, Blue Dart, Carlsberg, Sony, Unilever etc

ClickHouse January 2024 Release – v24.1

ChistaDATA Inc.

Introduction : ClickHouse January 2024 Release – v24.1 Every new release includes new features, enhancements, and numerous bug fixes, and the ChistaDATA team always stays on top of the latest releases. On January 30, 2024, […]

Why is Snowflake so Expensive?

ChistaDATA Inc.

Introduction : Snowflake Snowflake Inc. is possibly the most influential database software company in the modern world, after Oracle. The biggest technology IPO in history, it has raced to the hallowed $3B ARR mark demonstrating […]

ClickHouse Logistic Regression: Machine Learning in SQL

ChistaDATA Inc.

Introduction : ClickHouse: Logistic Regression In the earlier blog article, we have seen the basics of Linear Regression and how to perform linear regression on data present in ClickHouse. In this article, let us look […]

How to Avoid the Linux OOM Killer in ClickHouse

ChistaDATA Inc.

Introduction: Linux OOM killer In numerous instances, this indicates an out-of-memory scenario. ClickHouse started utilizing excessive memory, prompting Linux to terminate it to avert system instability. The responsible Linux process for this action is the […]

Why ClickHouse is so fast?

ChistaDATA Inc.

Introduction :Why ClickHouse is so fast? Online Analytical Processing Since Michael Stonebraker’s seminal 1986 paper that introduced POSTGRES (and consequently PostgreSQL) to the world, the relational database management system (RDBMS) has been synonymous with the […]

Streamlining ClickHouse Performance Evaluation: Automated ClickHouse Benchmarking with Google Cloud and Apache Superset

ChistaDATA Inc.

Introduction : Automated ClickHouse Benchmarking Benchmarking is a critical aspect of ensuring the performance and scalability of database systems. By analysing the performance of a database under different scenarios, developers and administrators can make informed […]

Embracing Flexibility with ClickHouse’s Memory Overcommit Feature

ChistaDATA Inc.

Introduction: ClickHouse Memory Overcommit In the world of database management, efficiency and optimisation are paramount. ClickHouse, a prominent column-oriented database management system renowned for its speed and efficiency in real-time query processing, introduced an innovative […]

Shard Rebalancing Methods in ClickHouse

ChistaDATA Inc.

Introduction : Shard Rebalancing Sharding is a pivotal concept in managing large-scale databases, especially when dealing with voluminous data that exceeds the storage capacity of a single server. This article explores the intricate world of […]

Configuring Skipping Indexes in ClickHouse

Machine Learning with ClickHouse: Linear Regression

ChistaDATA Inc.

Introduction ClickHouse is quite a popular and capable columnar data store for real-time analytics on petabytes of data. While the ClickHouse database is frequently used to run analytical queries, it is still possible to perform […]

ClickHouse Storage Tuning: MergeTree Data Variables and Cache Settings

ChistaDATA Inc.

Introduction In the realm of data management and analytics, performance is paramount. When dealing with large datasets, every bit of optimization counts. ClickHouse, the open-source column-oriented database management system, offers a plethora of settings to […]