Graylog is a powerful open-source log management platform, used to aggregate and analyze log data from any source in any format. It helps you quickly identify and resolve problems and security threats and gain deep insights into your IT environment. Graylog is a centralized log and event management system that can collect and store log data from virtually any source, including applications, servers, networks, web servers, and databases. It is designed to be easy to install, configure, and use, and provides powerful analytical capabilities that allow you to quickly identify and resolve problems and security threats in your IT environment. Graylog also allows you to define custom dashboards, alerts, and notifications for real-time monitoring of your IT environment. It has a wide range of features that can be used to customize your log management system, including data enrichment, routing, and multi-tenancy. Graylog also integrates with popular IT security tools such as Splunk, Elasticsearch and Kibana.
Prometheus are metric data. Numbers and the like. It does not store records of any kind.