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What is this feature? This PR implements compressed periodic save for alert state storage, providing a more efficient alternative to regular periodic saves by grouping alert instances by rule UID and storing them using protobuf and snappy compression. When enabled via the state_compressed_periodic_save_enabled configuration option, the system groups alert instances by their alert rule, compresses each group using protobuf serialization and snappy compression, and processes all rules within a single database transaction at specified intervals instead of syncing after every alert evaluation cycle. Why do we need this feature? During discussions in PR #111357, we identified the need for a compressed approach to periodic alert state storage that could further reduce database load beyond the jitter mechanism. While the jitter feature distributes database operations over time, this compressed periodic save approach reduces the frequency of database operations by batching alert state updates at explicitly declared intervals rather than syncing after every alert evaluation cycle. This approach provides several key benefits: - Reduced Database Frequency: Instead of frequent sync operations tied to alert evaluation cycles, updates occur only at configured intervals - Storage Efficiency: Rule-based grouping with protobuf and snappy compression significantly reduces storage requirements The compressed periodic save complements the existing jitter mechanism by providing an alternative strategy focused on reducing overall database interaction frequency while maintaining data integrity through compression and batching. Who is this feature for? - Platform/Infrastructure teams managing large-scale Grafana deployments with high alert cardinality - Organizations looking to optimize storage costs and database performance for alerting workloads - Production environments with 1000+ alert rules where database write frequency is a concern |
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README.md
Building the docs locally
When you contribute to documentation, it's a good practice to build the docs on your local machine to make sure your changes appear as you expect. This README explains the process for doing that.
To build a local version, you need to run a process in a Docker container.
Grafana periodically updates the Docker image, docs-base, to update the styling of the Docs.
Requirements
- Docker >= 2.1.0.3
- Yarn >= 1.22.4
Build the doc site
First, make sure the Docker daemon is running on your machine. Then, follow these steps:
- On the command line, first change to the docs folder:
cd docs. - Run
make docs. This launches a preview of the website with the current grafana docs athttp://localhost:3002/docs/grafana/latest/which will refresh automatically when changes are made to content in thesourcesdirectory.
If you have the grafana/website repo checked out in the same directory as the grafana repo, then you can run make docs-local-static to use local assets (such as images).
Deploy preview
When you open a PR that changes files in the docs/sources/ directory, CI builds a deploy preview.
After the deploy preview has been built, the Deploy pr preview workflow comments a link to the preview URL and adds a commit status check .
Content guidelines
Generally, one can edit content in the sources directory.
The following paths are built instead from a typescript file and are auto-generated. Please do not edit these files directly. Instead, navigate to the appropriate typescript source file and edit the content there, then follow the build instructions to generate the markdown files.
Transformations
Auto-generated markdown location:
- docs/sources/panels-visualizations/query-transform-data/transform-data/index.md
Typescript location for editing and instructions:
- scripts/docs/generate-transformations.ts - Includes all content not specific to a transformation.
- public/app/features/transformers/docs/content.ts - Transformation-specific content.
Only use reference style links in the content.ts file or else link text will be visible in the UI.
Contributing
Managing redirects
When moving content around or removing pages it's important that users following old links are properly redirected to the new location. We do this using the aliases feature in Hugo.
If you are moving a page, add an aliases entry in the front matter referencing the old location of the page which will redirect the old url to the new location.
If you are removing a page, add an aliases entry in the front matter of the most-applicable page referencing the location of the page being removed.
If you are copying an existing page as the basis for a new one, be sure to remove any aliases entries in the front matter in your copy to avoid conflicting redirects.
Edit the side menu
The side menu is automatically build from the file structure. Use the weight front matter parameter to order pages.
To specify different menu text from the page title, use the front matter parameter menuTitle.
Add images
Please see our help documentation on Image, diagram, and screenshot guidelines for comprehensive information.
Deploy changes to grafana.com
When a PR is merged with changes in the docs/sources directory, those changes are automatically synced by a GitHub action (.github/workflows/publish.yml) to the grafana/website repo.
- A PR that targets the
mainbranch syncs to thecontent/docs/grafana/nextdirectory in thewebsiterepository, and publishes tohttps://grafana.com/docs/grafana/next/. - A PR targeting the
latest/currentrelease branch syncs to thecontent/docs/grafana/latestdirectory in thewebsiterepository, and publishes tohttps://grafana.com/docs/grafana/latest/.
Once the sync is complete, the website will automatically publish to production - no further action is needed.