> For the complete documentation index, see [llms.txt](https://docs.hydrosphere.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hydrosphere.io/master/about/services/monitoring.md).

# Monitoring

## Automatic Outlier Detection

![](https://52056325-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MESaD8WY3ggQLtBByXl-887967055%2Fuploads%2Fgit-blob-def6e45b998858bb421773b69f9b70dae59c94d0%2Fauto-od-service-diagram%20\(1\)%20\(4\)%20\(6\)%20\(6\)%20\(2\).png?alt=media)

## Sonar

Sonar service is responsible for managing metrics, training and production data storage, calculating profiles, and shadowing data to the Model Versions which are used as an outlier detection metrics.

![](https://52056325-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MESaD8WY3ggQLtBByXl-887967055%2Fuploads%2Fgit-blob-ae315349188eb33141615fd8c04fbe18dda42234%2Fsonar-service-diagram%20\(1\)%20\(4\)%20\(6\)%20\(6\)%20\(3\).png?alt=media)

## Drift Report

![](https://52056325-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MESaD8WY3ggQLtBByXl-887967055%2Fuploads%2Fgit-blob-37f0ea5c37ca1375d20ee33c11af1ff7fb533a56%2Fdrift-report-service-diagram%20\(1\)%20\(4\)%20\(6\)%20\(6\)%20\(1\).png?alt=media)