No flow of data from my system to Grafana

abhishektomar499 · February 15, 2024, 9:01am

Hello All,

I need help setting up my Grafana dashboard.

Problems I’m facing right now:

My Prometheus server is up and running, my windows_exporter is up and running (verified as I’m able to see data)
But when I’m creating a dashboard on Grafana and choosing “Metrics” it gives me an error

Error: An unexpected error happened
Details
TypeError: Cannot read properties of undefined (reading ‘toLowerCase’)

at c (http://localhost:3000/public/build/1727.281a1e1cd15ef0881fa6.js:2:13549)
at div
at http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:211:49620
at div
at B (http://localhost:3000/public/build/1727.281a1e1cd15ef0881fa6.js:2:13178)
at http://localhost:3000/public/build/1697.ba74e2de8c65e37f1de4.js:87:11436
at ia (http://localhost:3000/public/build/1697.ba74e2de8c65e37f1de4.js:87:13279)
at div
at m (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:26:25711)
at u (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:26:23378)
at http://localhost:3000/public/build/1697.ba74e2de8c65e37f1de4.js:98:4683
at Ta (http://localhost:3000/public/build/1697.ba74e2de8c65e37f1de4.js:98:6910)
at i (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:1:172)
at o (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:192:118841)
at g (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:192:119350)
at div
at div
at div
at fs (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:124:25127)
at It (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:187:4993)
at za (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:124:29667)
at Rs (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:124:29797)
at E (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:425:68)
at div
at K (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:4108:820)
at div
at mu (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:124:30083)
at It (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:187:4993)
at y (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:187:2689)
at Xo (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:124:12772)
at ft (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:66:950)
at Oa (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:124:14520)
at g (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:4109:6041)
at div
at div
at div
at div
at div
at q (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:124:36551)
at f (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:192:29691)
at H (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:4114:56)
at Hs (http://localhost:3000/public/build/DashboardPageProxy.a37ebdee80e7a111eefe.js:315:9492)
at div
at r (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:284:49421)
at div
at http://localhost:3000/public/build/DashboardPageProxy.a37ebdee80e7a111eefe.js:315:10940
at div
at div
at i (http://localhost:3000/public/build/8474.aca7493112eb29aea9e3.js:1:2301)
at div
at i (http://localhost:3000/public/build/8474.aca7493112eb29aea9e3.js:1:4289)
at _ (http://localhost:3000/public/build/8474.aca7493112eb29aea9e3.js:1:9608)
at div
at i (http://localhost:3000/public/build/8474.aca7493112eb29aea9e3.js:1:2301)
at div
at i (http://localhost:3000/public/build/8474.aca7493112eb29aea9e3.js:1:4289)
at _ (http://localhost:3000/public/build/8474.aca7493112eb29aea9e3.js:1:9608)
at div
at div
at div
at U (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:357:21347)
at Xs (http://localhost:3000/public/build/DashboardPageProxy.a37ebdee80e7a111eefe.js:332:526)
at Ut (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:183:66326)
at WithTheme(Connect(Xs))
at vn (http://localhost:3000/public/build/DashboardPageProxy.a37ebdee80e7a111eefe.js:407:474)
at DashboardPage
at Ut (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:183:66326)
at To (http://localhost:3000/public/build/DashboardPageProxy.a37ebdee80e7a111eefe.js:407:6446)
at Suspense
at o (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:192:118841)
at Gc (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:5420:9842)
at ve (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:228:23578)
at la (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:209:4728)
at Zn (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:209:10219)
at el (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:228:11773)
at ve (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:228:25773)
at div
at div
at main
at div
at ag (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:5420:2407)
at la (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:209:4728)
at Zn (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:209:10219)
at _n (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:209:9608)
at Il (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:228:12072)
at ve (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:228:19749)
at div
at i (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:212:13888)
at v (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:41:14038)
at p (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:662:233850)
at l (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:566:21348)
at o (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:192:118841)
at g (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:192:119350)
at Re (http://localhost:3000/public/build/9733.976a8afd1c8ec137399a.js:187:529)
at Eu (http://localhost:3000/public/build/8378.0be0da24c8c516332bc6.js:5431:122)

cluttrdev · February 23, 2024, 3:04pm

Hi, I ran into the same error today (grafana:10.2.4, prometheus:v2.50.0).

Not sure if it helps, but in my case it was a missing uid field in my datasources.yaml

apiVersion: 1
datasources:
  - name: Prometheus
    type: prometheus
    uid: prometheus  # <- leads to error if missing
    url: http://prometheus:9090

ypeter · February 27, 2024, 2:56pm

I have got same issuse, but my uid is there. Still can’t find the issuse. Previously it works fine, seems I changed some version caused this issue.

cluttrdev · February 27, 2024, 3:58pm

Yeah, turned out to not be related to this but to some changes to the Prometheus metadata model introduced in v2.50.0.
Should be fixed in v2.50.1