[v2] Ensure similar naming for query service metrics (jaegertracing#5785

)

**Which problem is this PR solving?**

This PR addresses a part of the issue [jaegertracing#5633
](jaegertracing#5633)

**Description of the changes**
This is a Draft PR to achieve Observability Parity between V1 and V2
components by configuring OTEL Collector config files to initialise
internal tracer and metrics
**How was this change tested?**

The changes were tested by running the following command:

```bash
make test
```
```bash
CI actions
```
**Checklist**

- [x] I have read
[CONTRIBUTING_GUIDELINES.md](https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md)
- [x] I have signed all commits
- [x] I have added unit tests for the new functionality
- [x] I have run lint and test steps successfully
  - `for jaeger: make lint test`
  - `for jaeger-ui: yarn lint` and `yarn test`

---------

Signed-off-by: Wise-Wizard <saransh.shankar@gmail.com>
Signed-off-by: Jared Tan <jian.tan@daocloud.io>

cmd/jaeger/internal/all-in-one.yaml

@@ -10,6 +10,7 @@ service:
       service.name: jaeger
     metrics:
       level: detailed
+      address: 0.0.0.0:8888
     # TODO Initialize telemetery tracer once OTEL released new feature.
     # https://github.com/open-telemetry/opentelemetry-collector/issues/10663 
 

cmd/jaeger/internal/extension/jaegerquery/server.go

@@ -50,7 +50,8 @@ func (*server) Dependencies() []component.ID {
 
 func (s *server) Start(_ context.Context, host component.Host) error {
 	mf := otelmetrics.NewFactory(s.telset.MeterProvider)
-	queryMetricsFactory := mf.Namespace(metrics.NSOptions{Name: "query"})
+	baseFactory := mf.Namespace(metrics.NSOptions{Name: "jaeger"})
+	queryMetricsFactory := baseFactory.Namespace(metrics.NSOptions{Name: "query"})
 	f, err := jaegerstorage.GetStorageFactory(s.config.TraceStoragePrimary, host)
 	if err != nil {
 		return fmt.Errorf("cannot find primary storage %s: %w", s.config.TraceStoragePrimary, err)

scripts/compare_metrics.py

@@ -6,7 +6,6 @@
 
 import json
 
-# Load the JSON files
 v1_metrics_path = "./V1_Metrics.json"
 v2_metrics_path = "./V2_Metrics.json"
 
@@ -17,18 +16,22 @@
     v2_metrics = json.load(file)
 
 # Extract names and labels of the metrics
-def extract_metrics_with_labels(metrics):
+def extract_metrics_with_labels(metrics, strip_prefix=None):
     result = {}
     for metric in metrics:
         name = metric['name']
+        if strip_prefix and name.startswith(strip_prefix):
+            name = name[len(strip_prefix):]
         labels = {}
         if 'metrics' in metric and 'labels' in metric['metrics'][0]:
             labels = metric['metrics'][0]['labels']
         result[name] = labels
     return result
 
+
 v1_metrics_with_labels = extract_metrics_with_labels(v1_metrics)
-v2_metrics_with_labels = extract_metrics_with_labels(v2_metrics)
+v2_metrics_with_labels = extract_metrics_with_labels(
+    v2_metrics, strip_prefix="otelcol_")
 
 # Compare the metrics names and labels
 common_metrics = {}
@@ -37,10 +40,7 @@ def extract_metrics_with_labels(metrics):
 
 for name, labels in v1_metrics_with_labels.items():
     if name in v2_metrics_with_labels:
-        if labels == v2_metrics_with_labels[name]:
-            common_metrics[name] = labels
-        else:
-            v1_only_metrics[name] = labels
+        common_metrics[name] = labels
     else:
         v1_only_metrics[name] = labels
 
@@ -54,9 +54,8 @@ def extract_metrics_with_labels(metrics):
     "v2_only_metrics": v2_only_metrics
 }
 
-# Write the differences to a new JSON file
 differences_path = "./differences.json"
 with open(differences_path, 'w') as file:
     json.dump(differences, file, indent=4)
 
-print(f"Differences written to {differences_path}")
+print(f"Differences written to {differences_path}")