ClickHouse Enterprise Support, engineered for production at petabyte scale
ChistaDATA Inc. delivers enterprise-class, SLA-backed ClickHouse consultative support to organizations running real-time analytics, observability, time-series, and AI workloads on ClickHouse — the world’s fastest open-source OLAP database. A fifteen-minute Severity 1 response SLA, a named Technical Account Manager, and senior ClickHouse engineers across eleven global offices, on 100% open-source ClickHouse with zero vendor lock-in.
A senior ClickHouse engineer on call, every hour of every day
ClickHouse rewards teams that engineer it seriously and punishes teams that treat it like an ordinary relational database. The moment a workload crosses from prototype into petabyte production, the failure modes change character: replication queues back up against ZooKeeper or ClickHouse Keeper, merges fall behind ingestion, mutations stall, distributed queries fan out across dozens of shards, and a dashboard that answered in milliseconds last quarter now times out under peak concurrency. ChistaDATA Enterprise Support exists for exactly that reality — a globally distributed bench of career ClickHouse specialists who own the operational outcome of your cluster around the clock.
ChistaDATA Inc. is the industry’s leading full-stack ClickHouse infrastructure operations provider, headquartered in the San Francisco Bay Area with engineering offices distributed across eleven global locations. The Enterprise Support program is the reactive, incident-response companion to the broader ChistaDATA portfolio of strategic consulting, fully managed services, migration engineering, and break-fix engineering. It is designed for organizations whose internal database team owns the cluster day to day but needs an authoritative escalation bench — a phone number that reaches a principal ClickHouse engineer with full context, not a triage queue handing tickets to a runbook script.
Every ClickHouse Enterprise Support engagement is anchored on a single annual price covering an unlimited number of ClickHouse instances. There are no per-server licensing taxes, no surprise add-ons, and no commercial penalty for scaling the fleet from a single node to a multi-region deployment spanning thousands of nodes. The support contract is deliberately predictable so the engineering conversation can stay on the technical outcome — query latency, ingestion throughput, replication health, and the SLO posture of the cluster — rather than on the invoice.
The engineering bench behind the program has shipped production ClickHouse into AdTech operators processing trillions of events per day, observability platforms ingesting tens of millions of metrics per second, fintech analytics engines running fraud-detection windows in real time, and hyperscale SaaS platforms where the analytical tier is the product itself. That production scar tissue is the difference between a support vendor that reads documentation back to you and an engineering partner that has already seen — and fixed — the failure mode you are paging about at three in the morning.
ChistaDATA’s commitment to 100% open-source ClickHouse is not a marketing line — it is the foundation of the support model. Because every recommendation targets the open-source binary rather than a proprietary fork, customers are never locked into a single vendor, a single cloud, or a single managed platform. The configuration, the schema, the data, and the operational runbooks all belong entirely to the customer, portable across ClickHouse Cloud, the major hyperscalers, any Kubernetes distribution, and on-premises hardware. This independence is precisely what enterprises with multi-cloud mandates, sovereignty requirements, and long procurement horizons need from a support partner: an engineering relationship that strengthens their position rather than narrowing it. When the support contract ends, the customer keeps every artifact ChistaDATA produced — the runbooks, the postmortems, the tuning records, and the architecture documentation — because the engagement is built to make the in-house team stronger, not dependent.
The response SLA, published and contractual
ChistaDATA publishes its Enterprise Support SLA rather than hiding it behind a sales conversation. Severity is assigned jointly at the moment a case is opened, and the response clock is measured from first contact through any of the supported channels — twenty-four hours a day, three hundred and sixty-five days a year.
| Severity | Definition | Response SLA | Coverage |
|---|---|---|---|
| Severity 1 | Production cluster down or unusable; critical business impact — outage, data unavailability, replication failure, or security incident. | 15 minutes | 24×7×365 |
| Severity 2 | Major functionality impaired or severe performance degradation with significant business impact; no acceptable workaround. | 12 hours | 24×7×365 |
| Severity 3 | Partial, non-critical loss of functionality; a workaround exists and normal operations continue with reduced efficiency. | 24 hours | Business hours |
| Severity 4 | General guidance, configuration questions, feature requests, and informational queries with minimal operational impact. | 48 hours | Business hours |
Behind every SLA tier sits a written incident-response discipline. Severity 1 escalations open a live bridge with a senior ClickHouse engineer, a parallel investigation against the cluster’s system tables telemetry, and a documented timeline that becomes the basis of a blameless postmortem. The objective is never simply to restore service — it is to engineer the root cause out of the cluster so the same page never fires twice.
What the annual ClickHouse Enterprise Support contract covers
The plan is built for organizations that need an enterprise safety net across every ClickHouse instance they operate — self-managed, cloud, or hybrid — with the engineering depth to resolve the issue, not merely acknowledge it.
ClickHouse Enterprise Support is a reactive incident-response engagement. Your engineering team operates the cluster; ChistaDATA is the escalation authority when something breaks, degrades, or needs an expert second opinion before a high-risk change. The contract covers an unlimited number of ClickHouse instances, so the same protection extends across development, staging, and every production cluster in the fleet without per-node accounting.
Each contract is provisioned with a named Technical Account Manager who owns the commercial and operational relationship, and up to ten named customer contacts authorized to open and escalate cases. Those contacts reach the ChistaDATA bench through five parallel channels — telephone, email, a dedicated private Slack channel, the online ticketing system, and Zoom-based bridge calls for live incident response. The on-call engineer who answers is a senior ClickHouse practitioner, briefed on your topology, your workload profile, and your prior cases.
Enterprise Support pairs naturally with the ChistaDATA Data SRE practice and performance tuning programs — the support contract resolves the incident, and the engineering practices keep it from recurring.
- Unlimited ClickHouse instances under one annual price
- Named Technical Account Manager and ten authorized contacts
- Five support channels: phone, email, Slack, ticketing, Zoom
- 15-minute Severity 1 response, 24×7×365
- Senior ClickHouse engineers — no level-one triage handoff
- Incident root-cause analysis and blameless postmortems
- Schema-change and high-risk-operation review on request
- Version upgrade and patch advisory guidance
- Vendor-neutral across self-managed, Cloud, and DBaaS
- Audit-ready incident documentation as standard
How a ClickHouse incident is actually handled
An SLA is only as good as the engineering discipline behind it. ChistaDATA runs every escalation through the same structured lifecycle, so the resolution is repeatable, documented, and engineered to prevent recurrence rather than simply restore service and move on.
Acknowledge & classify
The case opens through phone, Slack, ticketing, email, or a Zoom bridge, and severity is assigned jointly within the SLA window. For a Severity 1 — a cluster outage, a stalled replication queue, a mutation storm, or MergeTree corruption — a senior ClickHouse engineer joins a live bridge within fifteen minutes with full prior context on your topology and workload profile.
Instrument, don’t guess
The engineer drives the investigation against the cluster’s own telemetry — system.query_log, system.parts, system.merges, system.mutations, system.replication_queue, and system.errors — correlated with OS, filesystem, and storage metrics. The root cause is isolated from evidence, not from a checklist, and the working hypothesis is shared with your team in real time.
Restore service safely
Remediation is applied through reproducible, version-controlled change with a documented rollback path. Whether the fix is a configuration change, a query rewrite, a replica rebuild, a partition operation, or a controlled restart, the change is reviewed before it touches production and measured against telemetry immediately after.
Close the loop
The incident is resolved only when the cluster has returned to its baseline SLO posture and the change has been validated against production load. Resolution criteria are explicit and agreed with your team, never assumed from a single green dashboard.
Engineer out the cause
Severity 1 and Severity 2 incidents close with a blameless postmortem: a documented timeline, the contributing factors, the corrective action, and the preventive engineering work that keeps the same page from firing twice. The postmortem becomes part of your audit-ready operational record.
Feed the roadmap
Recurring themes across incidents surface in the quarterly review, where the Technical Account Manager and the engineering bench translate operational pain into a prioritized hardening roadmap — connecting reactive support to the proactive Data SRE and performance practices.
This lifecycle is the reason ChistaDATA Enterprise Support customers see their incident volume trend downward over the life of the contract. Each escalation is treated as an opportunity to remove a class of failure from the cluster permanently — the antithesis of a ticket-closing help desk. Over a year of coverage, the cumulative effect is a measurably more reliable ClickHouse platform, a quieter on-call rotation for your internal engineers, and an operational record that stands up to a compliance audit without a scramble.
Six disciplines every support engagement is engineered against
ChistaDATA support is not a help desk that resets connections and closes tickets. Every escalation maps back to the same engineering disciplines — measured, instrumented, and continuously validated against the ClickHouse cluster running in production.
Query & Ingestion Performance
Diagnosis through EXPLAIN pipeline analysis, query-log forensics, MergeTree skip-index design, projection engineering, and vectorized-execution profiling. Slow queries and ingestion stalls resolved at the SQL, schema, and storage layers — measured in p95 and p99 latency, not dashboard guesses.
Sharding & Distributed Topology
Sharding strategy, distributed-table design, replica routing, parallel-replica execution, and object-storage tiering reviewed against the workload the business actually runs. Capacity guidance built bottom-up from real ingestion velocity and query concurrency, validated before production cutover.
High Availability & DR
ReplicatedMergeTree configuration, ClickHouse Keeper quorum design, multi-region replication, and disaster-recovery topologies implemented to defined RPO and RTO targets and stress-tested against real failure scenarios.
Data Reliability Engineering
SRE principles applied to ClickHouse: error budgets, SLOs, deep observability through system.* telemetry, Prometheus exporters, replication-lag budgets, partition lifecycle management, and corruption detection through part-level integrity validation.
Security & Compliance
Encryption at rest and in transit, RBAC with row- and column-level policies, query-level quotas, GRANT-level audit logging, and change controls aligned with GDPR, HIPAA, SOX, PCI DSS, and SOC 2 audit posture. Designed in, not bolted on.
Operational Continuity
Upgrade and patch advisory, schema-migration safety review, backup and restore validation, mutation observability, and the runbook automation that keeps a ClickHouse cluster trustworthy as the business grows ten to one hundred times in a year.
Every ClickHouse subsystem the support bench covers
The supported surface area spans the ClickHouse server, the ingestion plane, the analytics plane, and the surrounding ecosystem the cluster depends on in production.
Storage & Table Engines
Distributed & Replication
Ingestion & Pipelines
Cloud & Storage Tiering
Query & Caches
Observability & Ops
Whether the deployment is self-managed ClickHouse on AWS, Azure, GCP, OCI, or Kubernetes, or a managed service on ClickHouse Cloud, the support standard is the same. Customers retain full ownership of the binary, the configuration, and the data, because every recommendation is grounded in 100% open-source ClickHouse.
What makes ChistaDATA the ClickHouse support partner enterprises choose
Specialist depth, principal-engineer ownership, transparent commercial terms, and an unwavering commitment to 100% open-source ClickHouse.
Specialists, Not Generalists
Every ChistaDATA engineer is a career ClickHouse specialist who has shipped production clusters across AdTech, observability, fintech, telecom, IoT, SaaS analytics, and Generative AI — not a generalist who picked up ClickHouse last quarter.
100% Open-Source ClickHouse
Committed to GPL open-source ClickHouse with zero vendor lock-in. Customers keep full ownership of the binary, configuration, and data — deployable on any cloud, any region, any Kubernetes distribution, or on-premises.
24×7×365 Global Operations
Follow-the-sun ClickHouse engineering across eleven offices. The on-call engineer is a senior practitioner with full context on your cluster, not a level-one operator routing tickets to a script.
Boutique Discipline, Enterprise Scale
The same senior engineers, the same written deliverables, and the same engineering standard whether you run a single ClickHouse node or a Fortune 500 multi-region fleet.
Transparent Pricing
A single published annual price for unlimited instances, published consulting rates, and tiered managed-services plans. No per-server licensing tax, no surprise add-ons.
Audit-Ready Compliance
Delivery under GDPR, HIPAA, SOX, PCI DSS, and SOC 2 control environments, with encryption posture, RBAC matrices, audit logging, and change-management evidence produced as standard.
Built for industries where a sub-second query is a competitive advantage
ChistaDATA supports ClickHouse for organizations where a sub-second query is the difference between winning a bid, catching a fraud, or shipping a feature. Each domain below is one the engineering bench has already shipped to production.
Real-Time Bidding Analytics
Real-time bidding, attribution, audience segmentation, and frequency capping on ClickHouse clusters ingesting trillions of events per day, with p99 latency held below one hundred milliseconds at auction scale.
Log, Metric & Trace Analytics
Tens of millions of metrics, logs, and traces per second through ChistaDATA-supported ClickHouse clusters powering observability and SIEM platforms, SOC dashboards, and threat-hunting queries.
Fraud & Risk Analytics
Fraud detection, market-data analytics, transaction risk scoring, and regulatory reporting under GDPR, PCI DSS, MiFID II, and SOC 2 — where a corrupted aggregate has financial consequences.
Multi-Tenant Analytics
In-product dashboards and customer-facing reporting at millions of MAU, with sharding keys, materialized-view layers, and row-policy frameworks that keep tenant queries fast, isolated, and cost-controlled.
Time-Series at Scale
Call-detail-record analytics, subscriber analytics, network-probe ingestion, and IoT time-series workloads with high-write-throughput ingestion and zero-downtime upgrades engineered in from day one.
Feature Stores & Telemetry
Real-time feature stores, embedding analytics, and model-quality telemetry behind Generative AI on ClickHouse — engineered as the analytical companion to vector search and the lakehouse.
From contract to fully briefed support bench in four steps
Enterprise Support onboarding is engineered so the bench is ready to respond from the first day of coverage — not learning your topology during the first incident.
Discovery
A structured intake captures cluster topology, deployment model, workload profile, ingestion velocity, query mix, and the business-critical SLOs that define what a Severity 1 means for your organization.
Baseline
The bench reviews system-table telemetry, configuration, and prior incidents to build a documented operational baseline and a runbook tailored to your environment.
Enablement
Channels go live — phone, email, dedicated Slack, ticketing, and Zoom bridges — with named contacts provisioned, the Technical Account Manager assigned, and escalation paths tested end to end.
Operate
The contract enters steady state: paged incident response under SLA, quarterly reviews of the cluster’s reliability posture, and a standing channel to a principal engineer for high-risk changes.
Three ways to engage the ChistaDATA ClickHouse bench
Enterprise Support is one of three complementary engagement models. Many customers combine all three — managed services for steady-state operations, enterprise support for the safety net, and consulting for one-off architecture and migration programs.
- Architecture reviews and capacity planning
- Performance audits and tuning
- Migration design and runbooks
- Project-scoped, written deliverables
- 24×7×365 paged incident response
- 15-minute Severity 1 response SLA
- Named TAM & ten authorized contacts
- Phone, email, Slack, ticketing, Zoom
- Senior engineers, zero vendor lock-in
- Proactive 24×7 cluster operations
- Patching and version management
- Backup validation and DR drills
- Quarterly architecture audits
Consulting is project-scoped and priced at the published hourly rate. Managed Services is a subscription where a tiered engineering bench operates the cluster proactively against documented SLOs. Enterprise Support is the 24×7×365 reactive incident-response plan covering unlimited instances at a single annual price — designed for organizations whose internal team owns the cluster but needs a globally distributed escalation bench. Speak with a principal engineer through the ChistaDATA contact form to scope the right combination.
What ChistaDATA support consistently delivers
Every engagement is measured. The outcomes below are what ChistaDATA Enterprise Support customers consistently report across the engineering portfolio.
- 10× reduction in p99 query latency through index, projection, and MergeTree tuning
- Sustained ingestion from hundreds of thousands to multi-million rows per second
- 15-minute Severity 1 response, 24×7×365, with a senior engineer on the bridge
- 60–90% lower operating cost versus an in-house ClickHouse DBA function
- Audit-ready compliance evidence under GDPR, HIPAA, SOX, PCI DSS, and SOC 2
- Zero vendor lock-in — full ownership of binary, configuration, and data
ClickHouse Enterprise Support questions, answered
What is ChistaDATA ClickHouse Enterprise Support?
It is a 24×7×365 reactive incident-response and consultative support plan for organizations running ClickHouse in production. The plan provides a fifteen-minute Severity 1 response SLA, a named Technical Account Manager, up to ten authorized contacts, and five support channels — phone, email, a dedicated Slack channel, the online ticketing system, and Zoom bridge calls. It covers an unlimited number of ClickHouse instances under a single annual price and is delivered by senior ClickHouse engineers across eleven global offices.
How much does ClickHouse Enterprise Support cost?
ChistaDATA Enterprise Support covering an unlimited number of ClickHouse instances is offered at US$75,000 per year. There is no per-server licensing fee. For project-scoped work, ClickHouse consulting is published at US$450 per hour remote and US$600 per hour on-site with a forty-hour minimum, and managed-services subscriptions are sized from four to forty engineering hours per month.
What is the Severity 1 response SLA?
The Severity 1 response SLA is fifteen minutes, twenty-four hours a day, seven days a week, three hundred and sixty-five days a year. Severity 2 is twelve hours, Severity 3 is twenty-four hours, and Severity 4 is forty-eight hours. The on-call engineer who responds is a senior ClickHouse practitioner with full context on your cluster, not a level-one triage operator.
Does ChistaDATA support ClickHouse on ClickHouse Cloud and DBaaS providers?
Yes. ChistaDATA engineers are vendor-neutral across deployment topologies — self-managed ClickHouse on AWS, Azure, GCP, OCI, and Kubernetes; ClickHouse Cloud; and other managed DBaaS platforms. The support standard is identical regardless of where the cluster runs, and customers retain full ownership of the binary, configuration, and data.
How is Enterprise Support different from Managed Services?
Enterprise Support is reactive: your team owns the cluster and ChistaDATA is the escalation authority when something breaks or needs an expert review. Managed Services is proactive: a tiered ChistaDATA engineering bench operates the cluster on your behalf — monitoring, patching, backup validation, and quarterly architecture audits — against documented SLOs. Many customers run both: managed services for steady-state operations and enterprise support as the around-the-clock safety net.
Which compliance frameworks does ChistaDATA operate under?
ChistaDATA delivers under GDPR, HIPAA, SOX, PCI DSS, and SOC 2 control environments. Encryption at rest and in transit, RBAC with row- and column-level security, query-level audit logging, change management, and access reviews are part of every engagement, with audit-ready documentation produced as a standard deliverable.
How quickly can ChistaDATA engage on an active ClickHouse incident?
For existing Enterprise Support customers, Severity 1 incidents receive a fifteen-minute response, twenty-four hours a day. For organizations not yet under contract, a break-fix engagement or a performance audit typically begins within one to two business days once contracting completes.
Put a senior ClickHouse engineer on call, every hour of every day
Whether the priority is a fifteen-minute Severity 1 safety net, a standing channel to a principal engineer for high-risk changes, or audit-ready incident documentation across an unlimited fleet, a thirty-minute conversation with a ChistaDATA principal engineer is enough to know whether ChistaDATA is the right ClickHouse support partner.
ClickHouse is a registered trademark of ClickHouse, Inc. ChistaDATA is not affiliated with, endorsed by, or sponsored by ClickHouse, Inc. All other trademarks are the property of their respective owners. Copyright © 2010–2026. All Rights Reserved by ChistaDATA®.