What’s New in Grafana v4.0
As usual this release contains a ton of minor new features, fixes and improved UX. But on top of the usual new goodies is a core new feature: Alerting! Read on below for a detailed description of what’s new in v4.0.
Alerting is a really revolutionary feature for Grafana. It transforms Grafana from a visualization tool into a truly mission critical monitoring tool. The alert rules are very easy to configure using your existing graph panels and threshold levels can be set simply by dragging handles to the right side of the graph. The rules will continually be evaluated by grafana-server and notifications will be sent out when the rule conditions are met.
This feature has been worked on for over a year with many iterations and rewrites just to make sure the foundations are really solid. We are really proud to finally release it! Since the alerting execution is processed in the backend not all data source plugins are supported. Right now Graphite, Prometheus, InfluxDB and OpenTSDB are supported. Elasticsearch is being worked on but will be not ready for v4 release.
The rule config allows you to specify a name, how often the rule should be evaluated and a series of conditions that all need to be true for the alert to fire.
Currently the only condition type that exists is a
Query condition that allows you to specify a query letter, time range and an aggregation function. The letter refers to a query you already have added in the Metrics tab. The result from the query and the aggregation function is a single value that is then used in the threshold check.
We plan to add other condition types in the future, like
Other Alert, where you can include the state of another alert in your conditions, and
Time Of Day.
Alerting would not be very useful if there was no way to send notifications when rules trigger and change state. You can setup notifications of different types. We currently have
Webhook with more in the pipe that will be added during beta period. The notifications can then be added to your alert rules. If you have configured an external image store in the grafana.ini config file (s3, webdav, and azure_blob options available) you can get very rich notifications with an image of the graph and the metric values all included in the notification.
Alert state changes are recorded in a new annotation store that is built into Grafana. This store currently only supports storing annotations in Grafana’s own internal database (mysql, postgres or sqlite). The Grafana annotation storage is currently only used for alert state changes but we hope to add the ability for users to add graph comments in the form of annotations directly from within Grafana in a future release.
Alert List Panel
This new panel allows you to show alert rules or a history of alert rule state changes. You can filter based on states you are interested in. This panel is very useful for overview style dashboards.
Ad-hoc filter variable
This is a new and very different type of template variable. It will allow you to create new key/value filters on the fly with autocomplete for both key and values. The filter condition will be automatically applied to all queries that use that data source. This feature opens up more exploratory dashboards. In the gif animation to the right you have a dashboard for Elasticsearch log data. It uses one query variable that allow you to quickly change how the data is grouped, and an interval variable for controlling the granularity of the time buckets. What was missing was a way to dynamically apply filters to the log query. With the
Ad-Hoc Filters variable you can dynamically add filters to any log property!
We always try to bring some UX/UI refinements & polish in every release.
TV-mode & Kiosk mode
Grafana is so often used on wall mounted TVs that we figured a clean TV mode would be really nice. In TV mode the top navbar, row & panel controls will all fade to transparent.
This happens automatically after one minute of user inactivity but can also be toggled manually with the
d v sequence shortcut. Any mouse movement or keyboard action will restore navbar & controls.
Another feature is the kiosk mode. This can be enabled with
d k shortcut or by adding
&kiosk to the URL when you load a dashboard. In kiosk mode the navbar is completely hidden/removed from view.
New row menu & add panel experience
We spent a lot of time improving the dashboard building experience to make it both more efficient and easier for beginners. After many good but not great experiments with a
build mode we eventually decided to just improve the green row menu and continue work on a
build mode for a future release.
The new row menu automatically slides out when you mouse over the edge of the row. You no longer need to hover over the small green icon and then click it to expand the row menu.
There are some minor improvements to drag and drop behaviour. Now when dragging a panel from one row to another you will insert the panel and Grafana will automatically make room for it. When you drag a panel within a row you will simply reorder the panels.
If you look at the animation to the right you can see that you can drag and drop a new panel. This is not required, you can also just click the panel type and it will be inserted at the end of the row automatically. Dragging a new panel has an advantage in that you can insert a new panel where ever you want not just at the end of the row.
We plan to further improve dashboard building in the future with a more rich grid & layout system.
Grafana v4 introduces a number of really powerful keyboard shortcuts. You can now focus a panel by hovering over it with your mouse. With a panel focused you can simply hit
e to toggle panel edit mode, or
v to toggle fullscreen mode.
p r removes the panel.
p s opens share modal.
Some nice navigation shortcuts are:
g hfor go to home dashboard
s sopen search with starred pre-selected
s topen search in tags list view
Upgrade & Breaking changes
There are no breaking changes. Old dashboards and features should work the same. Grafana-server will automatically upgrade its db schema on restart. It’s advisable to do a backup of Grafana’s database before updating.
If you are using plugins make sure to update your plugins as some might not work perfectly v4.
You can update plugins using grafana-cli
grafana-cli plugins update-all
Checkout the CHANGELOG.md file for a complete list of new features, changes, and bug fixes.