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

Scaling ClickHouse from Gigabytes to Petabytes: A Practical Playbook

ChistaDATA Inc.

Most teams don’t run into ClickHouse scaling challenges when they’re managing a few hundred gigabytes. The problems surface the moment data volumes cross a threshold where naive configurations begin to crack — queries slow down, […]

ClickHouse Performance Pitfalls: 7 Mistakes That Slow Down Your Queries and How to Fix Them

ChistaDATA Inc.

ClickHouse has earned a well-deserved reputation as one of the fastest analytical databases available today. Its columnar storage, vectorized query execution, and aggressive compression make it a natural choice for teams dealing with hundreds of […]

ClickHouse Observability Stack in 2026: Apache Iceberg and OpenTelemetry for Real-Time Telemetry

ChistaDATA Inc.

Over the past few years, our platform engineering team at ChistaDATA has been rethinking how we approach observability infrastructure at scale. The conversation keeps circling back to the same frustration: most organizations are sitting on […]

ClickHouse Hot Spot Detection and Remediation in Clusters

ChistaDATA Inc.

In large-scale analytical systems, uneven data distribution is one of the most insidious performance killers. When certain nodes in a ClickHouse cluster receive disproportionately high volumes of reads or writes, those nodes become hot spots […]

ClickHouse Query Optimization: 8 Indexing Strategies That Actually Work

ChistaDATA Inc.

The ClickHouse indexing strategies that actually move query latency — sorting key, sparse primary index, data-skipping indexes, projections and materialized views — with runnable SQL. Need it faster now? ChistaDATA delivers expert ClickHouse performance tuning, consulting and 24×7 support.

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ClickHouse Primary Index Design: Parts, Partitions and Granules

ChistaDATA Inc.

A practitioner’s deep dive into MergeTree internals — parts, partitions, granules, and primary index design — from the ChistaDATA engineering team.

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Vector Database Indexing: HNSW, IVF, PQ, OPQ, and ScaNN Explained

ChistaDATA Inc.

A practitioner’s guide to vector database indexing — HNSW, IVF, PQ, OPQ, and ScaNN. Tuning, trade-offs, and architecture patterns from MinervaDB engineers.

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Apache Pulsar Segmented Storage and BookKeeper: An Operator’s Field Guide

ChistaDATA Inc.

A field guide to Apache Pulsar segmented storage and BookKeeper — ledgers, ensemble, write/ack quorum, bookie internals, tiered storage, and operational lessons.

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Vector ClickHouse Pipeline: Observability Worth the Effort

ChistaDATA Inc.

Vector ClickHouse pipeline: a practical look at how it works, what to tune, and the pitfalls that trip up production ClickHouse.

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Mining the ClickHouse Query Log for Performance Insights

ChistaDATA Inc.

ClickHouse query log: a practical look at how it works, what to tune, and the pitfalls that trip up production ClickHouse.

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