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Various companies, such as Sentry (specializing in error tracking and metrics), Chronosphere (offering structured logs and metrics), and Gitlab Opstrace (focused on error tracking and tracing), have opted for ClickHouse as their storage solution for observability data. This choice is driven by ClickHouse's exceptional cost savings on storage, often exceeding 10 times the efficiency, as well as its unparalleled query speeds that can handle multiple concurrent users.

Usually, these teams opt for a combination of industry-leading technologies to build their custom solution. The common approach for observability use cases entails employing OpenTelemetry agents for data collection, utilizing ClickHouse as the database, and leveraging Grafana for creating dashboards and managing alerts. We internally employ this stack to empower observability within ClickHouse Cloud. This methodology has the potential to deliver cost savings ranging from 10 to 100 times compared to off-the-shelf solutions when it comes to storing detailed structured logs over the long term.