Hello, i have an error with grafana. I am installing the monitoring service icinga2 and i want to see graphs in icingaweb2 webinterface. I made it before 1 year and it still works.
I installed icinga2 and icingaweb2 (with all dependencys) on a CentOS 8 Server, createt an influxDB, installed grafana package and startet grafana-server. In Grafana I imported icinga2-influxdb-host dashboard for Grafana | Grafana Labs. I clicked into the imported dashboard and I can see the created data in a graph. I also installed “grafana-cli plugins install grafana-image-renderer”
In icingaweb I added the feature grafana and edited the required Fields. I turned on the debug modus, so i can see which url icingaweb2 is using:
There comes a “Server Error”
In /var/log/messages there are some error messages:
Aug 12 23:00:16 icingaserver grafana-server[31602]: t=2021-08-12T23:00:16+0200 lvl=info msg=“HTTP Server Listen” logger=http.server address=[::]:3000 protocol=http subUrl= socket=
Aug 12 23:00:30 icingaserver grafana-server[31602]: t=2021-08-12T23:00:30+0200 lvl=info msg=Rendering logger=rendering renderer=plugin path=“d-solo/Pri_Ggnnz/icinga2-influxdb-host?var-hostname=one.one.one.one&var-service=hostalive&var-command=hostalive&panelId=1&orgId=1&width=900&height=400&theme=dark&from=now-6h&to=now&trickrefresh=1628801648”
Aug 12 23:00:30 icingaserver grafana-server[31602]: t=2021-08-12T23:00:30+0200 lvl=eror msg=“Request error” logger=context userId=1 orgId=1 uname=admin error=“runtime error: invalid memory address or nil pointer dereference” stack="/usr/local/go/src/runtime/panic.go:212 (0x43fc9a)\n/usr/local/go/src/runtime/signal_unix.go:734 (0x4596b2)\n/drone/src/pkg/services/rendering/rendering.go:213 (0x1264cdf)\n/drone/src/pkg/services/rendering/rendering.go:173 (0x1264917)\n/drone/src/pkg/api/render.go:54 (0x219c434)\n/usr/local/go/src/reflect/value.go:476 (0x4afa46)\n/usr/local/go/src/reflect/value.go:337 (0x4aef18)\n/drone/src/pkg/macaron/inject.go:164 (0x10743d6)\n/drone/src/pkg/macaron/inject.go:124 (0x1073d51)\n/drone/src/pkg/macaron/context.go:77 (0x1072c32)\n/drone/src/pkg/macaron/context.go:67 (0x1a5fbe5)\n/drone/src/pkg/middleware/request_metrics.go:55 (0x1a5fbd0)\n/usr/local/go/src/reflect/value.go:476 (0x4afa46)\n/usr/local/go/src/reflect/value.go:337 (0x4aef18)\n/drone/src/pkg/macaron/inject.go:164 (0x10743d6)\n/drone/src/pkg/macaron/inject.go:124 (0x1073d51)\n/drone/src/pkg/macaron/context.go:77 (0x1072c32)\n/drone/src/pkg/macaron/context.go:67 (0x1a5fa64)\n/drone/src/pkg/middleware/recovery.go:166 (0x1a5fa57)\n/drone/src/pkg/macaron/context.go:35 (0x1072a12)\n/drone/src/pkg/macaron/inject.go:144 (0x10740d1)\n/drone/src/pkg/macaron/inject.go:122 (0x1073e44)\n/drone/src/pkg/macaron/context.go:77 (0x1072c32)\n/drone/src/pkg/macaron/context.go:67 (0x1a5db29)\n/drone/src/pkg/middleware/logger.go:35 (0x1a5dafd)\n/usr/local/go/src/reflect/value.go:476 (0x4afa46)\n/usr/local/go/src/reflect/value.go:337 (0x4aef18)\n/drone/src/pkg/macaron/inject.go:164 (0x10743d6)\n/drone/src/pkg/macaron/inject.go:124 (0x1073d51)\n/drone/src/pkg/macaron/context.go:77 (0x1072c32)\n/drone/src/pkg/macaron/context.go:67 (0x1a60d37)\n/drone/src/pkg/middleware/request_tracing.go:56 (0x1a60d2a)\n/usr/local/go/src/reflect/value.go:476 (0x4afa46)\n/usr/local/go/src/reflect/value.go:337 (0x4aef18)\n/drone/src/pkg/macaron/inject.go:164 (0x10743d6)\n/drone/src/pkg/macaron/inject.go:124 (0x1073d51)\n/drone/src/pkg/macaron/context.go:77 (0x1072c32)\n/drone/src/pkg/macaron/router.go:187 (0x10817b0)\n/drone/src/pkg/macaron/router.go:303 (0x107c285)\n/drone/src/pkg/macaron/macaron.go:192 (0x1075b8c)\n/usr/local/go/src/net/http/server.go:2887 (0x724a42)\n/usr/local/go/src/net/http/server.go:1952 (0x71ff6c)\n/usr/local/go/src/runtime/asm_amd64.s:1371 (0x47c2c0)\n"
Aug 12 23:00:30 icingaserver grafana-server[31602]: t=2021-08-12T23:00:30+0200 lvl=eror msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=GET path=/render/d-solo/Pri_Ggnnz/icinga2-influxdb-host status=500 remote_addr=my-IP time_ms=18 size=1718 referer=
Manually i can see the working graphs in the dashboard… and on the installed Server from 2020 i can go to the URL from icingaweb2
Regards, I hope you can halp me 