Can not get any data inside Grafana

[Fux2]

Hi, thanks for this tool. I could successfully add the grafana-rrd-server as a new Data-Source in Grafana v7.3.2. But when I want to add a query, there are no entries shown.

I used even your sample files for testing, but still no success. Here my configuration:

copied example files directly to the server (for testing purposes) name@server:~/go/bin$ ls annotations.csv grafana-rrd-server percent-idle.rrd percent-user.rrd sample.rrd

starting grafana-rrd-server name@server:~/go/bin$ sudo ./grafana-rrd-server -p 9000 -s 60 -r ./ -a ./annotations.csv

On a manual call with a webbrowser at the /search site: http://192.168.x.17:9000/search the grafana-rrd-server gives following output:

name@server:~/go/bin$ ./grafana-rrd-server -p 9000 -s 60 -r ./ -a ./annotations.csv ERROR: Cannot decode the request EOF Updating search cache.

As URL for the Grafana Simple JSON Datasource I used "192.168.x.17:9000". Must there be defined any name behind the port? Can you give me any hints? Thanks!

[lnevo]

I'm having a similar issue. I'm not getting anything from /search except for a []

I'm stuck because it seems not to pick up the rrd files. Any input would be great.

I'm running on Ubuntu 18

[AlexProfi]

I get the same issue on centos8 when call /search request

[Fux2]

I am now using another software: https://github.com/famzah/rrd-json-grafana-ds/ But I had a similar issue with this software: https://github.com/famzah/rrd-json-grafana-ds/issues/2 In short: I could solve the problem by using another webbrowser Chrome. After configuring in Chrome it worked also in Firefox. For further information please have a look at the second link.

[AlexProfi]

I am now using another software: https://github.com/famzah/rrd-json-grafana-ds/ But I had a similar issue with this software: famzah/rrd-json-grafana-ds#2 In short: I could solve the problem by using another webbrowser Chrome. After configuring in Chrome it worked also in Firefox. For further information please have a look at the second link.

Thanks for reply. I solve issue by using docker image juliogonzalez/grafana-rrd-server or using release 0.5.0 but rrd server don't read last point from rrd ( but rrdtool does it) and I have delay 5 min in graphics in grafana. Do you get same problem with rrd-json-grafana-ds?

[lnevo]

Thanks for reply. I solve issue by using docker image juliogonzalez/grafana-rrd-server or using release 0.5.0 but rrd server don't read last point from rrd ( but rrdtool does it) and I have delay 5 min in graphics in grafana. Do you get same problem with rrd-json-grafana-ds?

I was able to use the docker image to solve the problem, but would prefer not to have that overhead. I don't mind the 5 minute delay so that's not an issue for me. I'm using nginx so had quite a few issues with rrd-json-grafana-ds. In any case I'm here and now with the docker image using this. If I can provide any details to help troubleshoot let me know.

At least I know my data source and rrd files were all working as they should.

[setop]

same here

thanks for the hint to get back to 0.0.5, it works.

the main change in HEAD seems the addition of a cache

it seems to fail for everyone.

[PeterSurda]

The problem appears to be that search for an empty string returns an empty list, instead of all keys, which one would expect. This patch fixes the problem:

diff --git a/rrdserver.go b/rrdserver.go
index 4c9980b..4252b27 100644
--- a/rrdserver.go
+++ b/rrdserver.go
@@ -197,11 +197,9 @@ func search(w http.ResponseWriter, r *http.Request) {

        var result = []string{}

-       if target != "" {
-               for _, path := range searchCache.Get() {
-                       if strings.Contains(path, target) {
-                               result = append(result, path)
-                       }
+       for _, path := range searchCache.Get() {
+               if target == "" || strings.Contains(path, target) {
+                       result = append(result, path)
                }
        }