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[EXAMPLES] Fix view names in Prometheus example #2034

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merged 6 commits into from
Mar 16, 2023
Merged

[EXAMPLES] Fix view names in Prometheus example #2034

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72ba206
Fix view names in prometheus example
tyler92 Mar 9, 2023
d5cee3b
Fix format
tyler92 Mar 9, 2023
8da1535
Merge branch 'main' into fix-prometheus-example
esigo Mar 9, 2023
31f8ce5
Update README
tyler92 Mar 14, 2023
19a720a
Update README
tyler92 Mar 14, 2023
e8b7914
Merge branch 'main' into fix-prometheus-example
lalitb Mar 16, 2023
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10 changes: 5 additions & 5 deletions examples/prometheus/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,7 @@ Start the application and keep it running. Now we should be able to see the
metrics at [http://localhost:9464/metrics](http://localhost:9464/metrics) from a
web browser:

![Browser UI](https://user-images.githubusercontent.com/71217171/168492500-12bd1c99-33ab-4515-a294-17bc349b5d13.png)
![Browser UI](https://user-images.githubusercontent.com/9139451/224979531-beaa4d6e-98ec-4798-9934-ed25c6b196db.png)

Now, we understand how we can configure `PrometheusExporter` to export metrics.
Next, we are going to learn about how to use Prometheus to collect the metrics.
Expand Down Expand Up @@ -114,12 +114,12 @@ docker run -p 9090:9090 -v $(pwd):/etc/prometheus --network="host" prom/promethe

To use the graphical interface for viewing our metrics with Prometheus, navigate
to [http://localhost:9090/graph](http://localhost:9090/graph),
and type `prometheus_metric_example_bucket` in the expression bar of the UI;
finally, click the execute button.
and type `prometheus_metric_example_histogram_bucket` in the expression bar of
the UI; finally, click the execute button.

We should be able to see the following chart from the browser:

![Prometheus UI](https://user-images.githubusercontent.com/71217171/168492437-f9769db1-6f9e-49c6-8ef0-85f5e1188ba0.png)
![Prometheus UI](https://user-images.githubusercontent.com/9139451/224979224-e7d3865a-f56e-4bb9-8aab-e3f81de40d6e.png)

From the legend, we can see that the `instance` name and the `job` name are the
values we have set in `prometheus.yml`.
Expand Down Expand Up @@ -164,7 +164,7 @@ Feel free to find some handy PromQL
[here](https://promlabs.com/promql-cheat-sheet/).

![Grafana
UI](https://user-images.githubusercontent.com/71217171/168492482-047a4429-4854-4b3c-a2dd-4d75362090d5.png)
UI](https://user-images.githubusercontent.com/9139451/224983906-52e061b8-b561-4414-87e9-68823bbc3ad6.png)

```mermaid
graph TD
Expand Down
6 changes: 3 additions & 3 deletions examples/prometheus/main.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,7 @@ void InitMetrics(const std::string &name, const std::string &addr)
std::unique_ptr<metrics_sdk::MeterSelector> meter_selector{
new metrics_sdk::MeterSelector(name, version, schema)};
std::unique_ptr<metrics_sdk::View> sum_view{
new metrics_sdk::View{name, "description", metrics_sdk::AggregationType::kSum}};
new metrics_sdk::View{counter_name, "description", metrics_sdk::AggregationType::kSum}};
p->AddView(std::move(instrument_selector), std::move(meter_selector), std::move(sum_view));

// histogram view
Expand All @@ -61,8 +61,8 @@ void InitMetrics(const std::string &name, const std::string &addr)
new metrics_sdk::InstrumentSelector(metrics_sdk::InstrumentType::kHistogram, histogram_name)};
std::unique_ptr<metrics_sdk::MeterSelector> histogram_meter_selector{
new metrics_sdk::MeterSelector(name, version, schema)};
std::unique_ptr<metrics_sdk::View> histogram_view{
new metrics_sdk::View{name, "description", metrics_sdk::AggregationType::kHistogram}};
std::unique_ptr<metrics_sdk::View> histogram_view{new metrics_sdk::View{
histogram_name, "description", metrics_sdk::AggregationType::kHistogram}};
p->AddView(std::move(histogram_instrument_selector), std::move(histogram_meter_selector),
std::move(histogram_view));
metrics_api::Provider::SetMeterProvider(provider);
Expand Down