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# supports
Slackbot
07/07/2022, 11:30 AMThis message was deleted.
n
nitya-signoz
07/07/2022, 11:42 AMDid you initialize the tracer as given in the example https://github.com/SigNoz/sample-golang-app/blob/90aa1f10cb5ec4e543c705851d7e4092022cdb31/main.go#L71 ? Also you are not able to see it on Services page or Traces page or both ?
s
Shreyas Mishra
07/07/2022, 11:44 AMyup did as given in the example
and not able to see it on both the page
Shreyas Mishra
07/07/2022, 11:46 AM Copy code
if err := db.Use(otelgorm.NewPlugin()); err != nil {
panic(err)
} Copy code
if err := DB.WithContext(ctx).Model(&Dbuse{}).Where("something = ", value).Error; err != nil {
return
}n
nitya-signoz
07/07/2022, 11:50 AMdbDBs
Shreyas Mishra
07/07/2022, 11:53 AMsame variable
Shreyas Mishra
07/07/2022, 11:53 AMDB is a global variable
Shreyas Mishra
07/07/2022, 11:55 AM Copy code
func connectDB() *gorm.DB {
dsn := ""
db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
if err != nil {
fmt.Println("error")
return nil
}
db.AutoMigrate(&Dbuse{})
if err := db.Use(otelgorm.NewPlugin()); err != nil {
panic(err)
}
fmt.Println("DB connected")
return db
} Copy code
DB = connectDB()
if err := DB.WithContext(ctx).Model(&Dbuse{}).Where("something = ", "somevalue").Error; err != nil {
return
}n
nitya-signoz
07/07/2022, 12:03 PMIn your initTracer function change your exporter to stdout like this
Copy code
exporter, err := stdouttrace.New(
stdouttrace.WithWriter(os.Stdout),
stdouttrace.WithPrettyPrint(),
stdouttrace.WithoutTimestamps(),
)s
Shreyas Mishra
07/07/2022, 12:06 PM Copy code
{
"Name": "testing func",
"SpanContext": {
"TraceID": "5ed96977eba66e713e4cbbf2649aa170",
"SpanID": "3f1f8a03b6fa0c8e",
"TraceFlags": "01",
"TraceState": "",
"Remote": false
},
"Parent": {
"TraceID": "5ed96977eba66e713e4cbbf2649aa170",
"SpanID": "6271e1ff1b13427f",
"TraceFlags": "01",
"TraceState": "",
"Remote": false
},
"SpanKind": 1,
"StartTime": "0001-01-01T00:00:00Z",
"EndTime": "0001-01-01T00:00:00Z",
"Attributes": [
{
"Key": "goApp",
"Value": {
"Type": "STRING",
"Value": "testfunc"
}
}
],
"Events": [
{
"Name": "This is a sample event in test1",
"Attributes": [
{
"Key": "pid",
"Value": {
"Type": "INT64",
"Value": 4329
}
},
{
"Key": "sampleAttribute",
"Value": {
"Type": "STRING",
"Value": "TestFunc"
}
}
],
"DroppedAttributeCount": 0,
"Time": "0001-01-01T00:00:00Z"
}
],
"Links": null,
"Status": {
"Code": "Unset",
"Description": ""
},
"DroppedAttributes": 0,
"DroppedEvents": 0,
"DroppedLinks": 0,
"ChildSpanCount": 0,
"Resource": [
{
"Key": "library.language",
"Value": {
"Type": "STRING",
"Value": "go"
}
},
{
"Key": "service.name",
"Value": {
"Type": "STRING",
"Value": "goApp"
}
}
],
"InstrumentationLibrary": {
"Name": "test",
"Version": "",
"SchemaURL": ""
}
}
{
"Name": "/test1",
"SpanContext": {
"TraceID": "5ed96977eba66e713e4cbbf2649aa170",
"SpanID": "6271e1ff1b13427f",
"TraceFlags": "01",
"TraceState": "",
"Remote": false
},
"Parent": {
"TraceID": "00000000000000000000000000000000",
"SpanID": "0000000000000000",
"TraceFlags": "00",
"TraceState": "",
"Remote": false
},
"SpanKind": 2,
"StartTime": "0001-01-01T00:00:00Z",
"EndTime": "0001-01-01T00:00:00Z",
"Attributes": [
{
"Key": "net.transport",
"Value": {
"Type": "STRING",
"Value": "ip_tcp"
}
},
{
"Key": "net.peer.ip",
"Value": {
"Type": "STRING",
"Value": "::1"
}
},
{
"Key": "net.peer.port",
"Value": {
"Type": "INT64",
"Value": 56184
}
},
{
"Key": "net.host.name",
"Value": {
"Type": "STRING",
"Value": "localhost"
}
},
{
"Key": "net.host.port",
"Value": {
"Type": "INT64",
"Value": 8080
}
},
{
"Key": "http.method",
"Value": {
"Type": "STRING",
"Value": "POST"
}
},
{
"Key": "http.target",
"Value": {
"Type": "STRING",
"Value": "/test1"
}
},
{
"Key": "http.server_name",
"Value": {
"Type": "STRING",
"Value": "goApp"
}
},
{
"Key": "http.route",
"Value": {
"Type": "STRING",
"Value": "/test1"
}
},
{
"Key": "http.user_agent",
"Value": {
"Type": "STRING",
"Value": "PostmanRuntime/7.29.0"
}
},
{
"Key": "http.scheme",
"Value": {
"Type": "STRING",
"Value": "http"
}
},
{
"Key": "http.host",
"Value": {
"Type": "STRING",
"Value": "localhost:8080"
}
},
{
"Key": "http.flavor",
"Value": {
"Type": "STRING",
"Value": "1.1"
}
},
{
"Key": "goApp",
"Value": {
"Type": "STRING",
"Value": "endpoint1new"
}
}
],
"Events": [
{
"Name": "This is a sample event in test1",
"Attributes": [
{
"Key": "pid",
"Value": {
"Type": "INT64",
"Value": 4328
}
},
{
"Key": "sampleAttribute",
"Value": {
"Type": "STRING",
"Value": "Test1"
}
}
],
"DroppedAttributeCount": 0,
"Time": "0001-01-01T00:00:00Z"
}
],
"Links": null,
"Status": {
"Code": "Unset",
"Description": ""
},
"DroppedAttributes": 0,
"DroppedEvents": 0,
"DroppedLinks": 0,
"ChildSpanCount": 1,
"Resource": [
{
"Key": "library.language",
"Value": {
"Type": "STRING",
"Value": "go"
}
},
{
"Key": "service.name",
"Value": {
"Type": "STRING",
"Value": "goApp"
}
}
],
"InstrumentationLibrary": {
"Name": "<http://go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux|go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux>",
"Version": "semver:0.32.0",
"SchemaURL": ""
}
}n
nitya-signoz
07/07/2022, 12:23 PMThis means that it’s an issue with the code. If it was properly instrumented a span like
Copy code
{
"Name": "gorm.Query",
.....
"InstrumentationLibrary": {
"Name": "<http://github.com/uptrace/opentelemetry-go-extra/otelgorm|github.com/uptrace/opentelemetry-go-extra/otelgorm>",
"Version": "",
"SchemaURL": ""
}
}👍 1
nitya-signoz
07/07/2022, 12:25 PM@Vishal Sharma do you have idea about what might be the issue here ?
s
Shreyas Mishra
07/08/2022, 12:13 PMhey,any idea what i can do to receive the trace
n
nitya-signoz
07/08/2022, 12:28 PMCan you try comparing if the versions of different packages like otel, db, tracing library etc are similar to the one present in the example, given that your code is similar as the one we have in example.
👍 1
v
Vishal Sharma
07/12/2022, 8:19 AM@Shreyas Mishra Were you able to solve it?
s
Shreyas Mishra
07/12/2022, 8:56 AMyes i was
i went through the uptrace repo and apparently there is no option to generate trace for
db.where()Shreyas Mishra
07/12/2022, 8:57 AMi have successfully deployed the tracing in production
✅ 1
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