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

The Snowflake Exit: A Migration Framework from Warehouse Credits to ClickHouse

ChistaDATA Inc.

Every quarter we take calls that start the same way: a data platform lead opens their Snowflake invoice, looks at the credit consumption graph, and asks what a Snowflake to ClickHouse migration would save. Sometimes […]

ClickHouse 26.x in production: QBit vectors, text index GA, and Iceberg writes

ClickHouse 26.x in Production: QBit Vectors, Text Index, and Iceberg Writes

ChistaDATA Inc.

ClickHouse 26.x ships monthly on calendar versioning (YY.MM), and the ClickHouse 26.x line has been the most consequential run of releases since the project went commercial. As of August 2026, the latest stable is v26.7.3.19 […]

ClickHouse Performance

ClickHouse Performance Troubleshooting: 9 Proven Techniques for 26.7

ChistaDATA Inc.

ClickHouse performance troubleshooting is mostly a reading problem, not a tooling problem. A 26.7 server already writes down almost everything you need — every query it ran, every byte it touched, every microsecond each operator […]

ClickHouse Upgrade Guide: 6 Proven Steps for Zero-Downtime Rolling LTS Upgrades

ChistaDATA Inc.

A production ClickHouse upgrade done properly is a rolling, replica-by-replica operation with zero query downtime, a measured before/after regression check, and a rollback posture decided before the first package is installed. Done casually, it is […]

ClickHouse BYOC with ChistaDATA: The Complete 2026 Architecture Guide

ChistaDATA Inc.

ClickHouse BYOC (Bring Your Own Cloud) is a deployment model in which the entire ClickHouse® data plane runs inside your cloud account and your VPC, while ChistaDATA operates, tunes, secures and supports that cluster through […]

ClickHouse system.parts storage diagnosis guide featured image with a merge level pyramid of part levels L0 to L3

How to Read system.parts to Diagnose ClickHouse Storage and Performance Issues

ChistaDATA Inc.

A ClickHouse system.parts query cookbook: compression ratios, part levels, partition sizing, parts_columns drill-downs, index memory, and detached parts.

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ClickHouse Explain

ClickHouse EXPLAIN PIPELINE: A Proven 7-Step Guide to Decoding Query Execution Bottlenecks

ChistaDATA Inc.

Read ClickHouse EXPLAIN PIPELINE like a principal engineer: processor names, x1 choke points, and measured confirmation via system.processors_profile_log.

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