Graphite-API & Grafana: dashboard stuck: “Refresh every {{ctrl.dashboard.refresh}}”

grafana

My grafana dashboard seem to be stuck, I believe to have accidentally pressed ctrl+z for zoom.

I see the following instead of the normal time-picker:
Refresh every {{ctrl.dashboard.refresh}}

tried to export & import but result is the same problem
can't find any issue with the graph itself (metrics etc)
datsource seems to be working (tested ok, other dashboards show info ok)
tried to understand difference between other json export and this particular json file but didn't find the troubling issue

Spotted the error in the JSON file after all.

Looks like time block was wrong, it was:

"time": {
    "from": null,
    "to": null
},

and I changed that too:

"time": {
   "from": "now-3h",
   "to": "now"
},

sadly I could not find how to do that from the interface itself in browser.

Fixed:

open developer tool and check console log.
switched 127.0.0.1 to IP I can use in my desktop browser. Have no idea why it cannot be communicated directly and have to jump back and forth across the globe
see XMLHttpRequest cannot load http://example.com/graphite//metrics/find/?query=*. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://example.com/grafena' is therefore not allowed access.
Add this to apache virtualhost config at the graphite side:

Header set Access-Control-Allow-Origin: "*"

Header set Access-Control-Allow-Methods: "GET, OPTIONS, POST"

Header set Access-Control-Allow-Headers: "origin, authorization,accept, content-type"

then apachectl -t && apachectl graceful

That's all.

You can render a graphic in this way:

http://[grafana-url]/render/dashboard-solo/db/[dashboard_name]?panelId=[number_panel]&?from=now-24h?to=now

You can change from and to.

If you use authentication you have to use Authorization Bearer and maybe base64encode for result from query.

I hope it helps.