Essential Monitoring Queries: Creating a Dashboard in ClickHouse Cloud

Monitoring ClickHouse can be challenging, especially when navigating between system tables and ad hoc queries. The ClickHouse Support team previously provided essential monitoring queries to help users monitor their instance using powerful system tables. In this post, a centralized, reusable dashboard is created in ClickHouse Cloud, providing real-time visibility in just a few clicks. A query on `system.parts` is used to provide a global overview of the cluster, showing the biggest tables in terms of rows, data, and primary key size. This query is saved and added to a new dashboard, which includes additional queries to display average query duration, number of requests, and user activity. The dashboard is interactive, allowing viewers to filter data by time period, and is easily shareable via its custom URL. With this dashboard, users can optimize performance and reduce the time spent hunting down queries.