ClickHouse/ClickStack
Observability platform by the ClickHouse team for searching and visualizing logs, metrics, traces and session replays on any ClickHouse cluster.
Awesome ClickHouse › Metrics and Monitoring
ccfos/nightingale
Nightingale (n9e) is a self-hosted, open-source alerting and observability platform written in Go and licensed under Apache-2.0. It centralizes alert rule evaluation, event processing and notification routing for teams that already run a mix of monitoring and logging systems, rather than replacing that infrastructure. It connects to data sources already in use, including Prometheus, VictoriaMetrics, Elasticsearch, Loki, ClickHouse and PostgreSQL, and evaluates alert rules against metrics, logs and SQL-backed data from those sources. When a rule fires, notifications are routed to tools such as Slack, PagerDuty, Discord, Email, Telegram and Jira, so teams can keep their existing collectors, storage and Grafana dashboards. Rules are organized into business groups with team-level permissions, letting each team own and manage its own rules and notification settings through a web UI and an API, instead of relying on one shared configuration. Nightingale keeps a history of rule evaluations, event records and notification results, so an alert's path from the originating query through to delivery can be traced after the fact. Recent releases add a built-in AI agent and an MCP server, letting agent-based tools query and act on alerting data directly. For ClickHouse specifically, Nightingale can evaluate alert rules against SQL queries run on a ClickHouse backend, making it usable as an alerting layer on top of ClickHouse-stored metrics or logs alongside the other supported sources. It ships as a single binary plus a Docker Compose stack for local evaluation (Nightingale, MySQL, Redis, VictoriaMetrics and Categraf), with hosted documentation and a Slack community for support. It suits teams running heterogeneous observability stacks who want one place to manage alert rules and notification routing without migrating metrics or log storage to a single vendor.
https://github.com/ccfos/nightingale
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