Alerting is now available in ClickStack for ClickHouse Cloud, bringing feature parity with the open source version and eliminating the need for custom setup.
Users in the private preview can create search-based or chart-based alerts directly in the HyperDX UI, across logs, metrics, and traces. Alerts integrate out-of-the-box with Slack, PagerDuty, and webhooks, helping teams respond to spikes in latency, errors, or KPIs in real time.
Back in August, we announced ClickStack in ClickHouse Cloud, marking the start of a unified future for observability and analytics. Since then, we’ve been busy onboarding customers, scaling the HyperDX UI to handle petabyte-scale workloads, and delivering enterprise features.
Today, we're excited to share one of the most requested capabilities - alerting, which is now available for ClickStack users in ClickHouse Cloud.
Users participating in the private preview can now create and manage alerts directly within the HyperDX interface. These alerts work seamlessly across your ClickStack signals:Â logs, metrics, and traces, and integrate with the notification tools you already use.
Out-of-the-box, ClickStack alerting supports Slack, PagerDuty, and generic webhooks, giving you the flexibility to connect any system or workflow. Whether you’re monitoring latency spikes, error rates, or business KPIs stored in ClickHouse, alerting helps you take action immediately.
This release achieves feature parity with open-source ClickStack, while simplifying setup for ClickHouse Cloud users. There’s no infrastructure to manage, and no custom configuration is required - alerting just works, right from the Cloud-hosted ClickStack UI in HyperDX.
We've also made optimizations to the UI and backend services to ensure alert processing scales with the size and performance demands we see in ClickHouse Cloud.
ClickStack alerting in ClickHouse Cloud offers flexible ways to detect and respond to issues in real time.
Within the HyperDX UI, users can create alerts in two ways - search-based or chart-based.
Search-based alerts let you define a query using either SQL or Lucene syntax, then specify a threshold for the number of matching events over a given time window for a grouping column e.g., Service name. When the count rises above or falls below that threshold for any of the lines produced by the GROUP BY, the alert triggers automatically - sending an event to the configured Webhook.
For more advanced use cases, you can build chart-based alerts directly from dashboards, powered by full SQL aggregations. This allows users to leverage any ClickHouse function for rich aggregations and statistical calculations. When a computed metric again exceeds a threshold, an alert can be fired for the chart.
For example, consider our public ClickPy demo environment, which provides analytics for Python package downloads.
This public-facing demo has been instrumented with OpenTelemetry tracing to allow us to debug performance issues. Using this data, we can visualize query performance across user interactions in the public application. In this example, we track the 99th percentile of query latency and configure an alert to trigger whenever it exceeds a defined threshold - signaling that users may be experiencing slower performance.
Note: to add an alert, the underlying dashboard for the chart must be saved.
Looking ahead, we’ll continue expanding ClickStack alerting with broader integrations such as email, and more advanced alerting logic, such as anomaly detection, to support richer use cases.
We’re also exploring dedicated compute pools for alerts, allowing users with large-scale alerting needs to leverage ClickHouse warehouses to isolate alert processing from their primary read and write workloads.
Users in the private preview can now explore alerting in ClickStack integration for ClickHouse Cloud and enjoy the same powerful, ClickHouse-powered alerts available in the open source version.
If you’d like to join the private preview, reach out to your ClickHouse account rep or complete the interest form.
