Fix/signoz-exporter: added extra attribute

[aniketio-ctrl]

Fix -
the same labels and name was generated by the clickhousemetricsexporter so we added one more label to distinguish

[srikanthccv]

@aniketio-ctrl, please explain how current instrumentation creates an issue and how adding another label with constant value solves it?

[aniketio-ctrl]

@aniketio-ctrl, please explain how current instrumentation creates an issue and how adding another label with constant value solves it?

this is because both the exporter is sending same metrics with same label name that what causing the issue, thats why i have added one more label to distinguish

aniket@Anikets-MacBook-Pro-2 bin % curl localhost:8888/metrics | grep exporter_db_write_latency
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 3885 0 3885 0 0 885k 0 --:--:-- --:--:-- --:--:-- 948k

• collected metric "exporter_db_write_latency" { label:{name:"exporter" value:"metrics"} label:{name:"service_instance_id" value:"6941d912-6255-4621-9b77-af2343856eda"} label:{name:"service_name" value:"/Users/aniket/Library/Caches/JetBrains/GoLand2024.3/tmp/GoLand/___1go_build_github_com_SigNoz_signoz_otel_collector_cmd_signozotelcollector"} label:{name:"service_version" value:"dev"} label:{name:"table" value:"distributed_samples_v4"} histogram:{sample_count:11 sample_sum:83 bucket:{cumulative_count:11 upper_bound:250} bucket:{cumulative_count:11 upper_bound:500} bucket:{cumulative_count:11 upper_bound:750} bucket:{cumulative_count:11 upper_bound:1000} bucket:{cumulative_count:11 upper_bound:2000} bucket:{cumulative_count:11 upper_bound:2500} bucket:{cumulative_count:11 upper_bound:3000} bucket:{cumulative_count:11 upper_bound:4000} bucket:{cumulative_count:11 upper_bound:5000} bucket:{cumulative_count:11 upper_bound:6000} bucket:{cumulative_count:11 upper_bound:8000} bucket:{cumulative_count:11 upper_bound:10000} bucket:{cumulative_count:11 upper_bound:15000} bucket:{cumulative_count:11 upper_bound:25000} bucket:{cumulative_count:11 upper_bound:30000}}} was collected before with the same name and label values
• collected metric "exporter_db_write_latency" { label:{name:"exporter" value:"metrics"} label:{name:"service_instance_id" value:"6941d912-6255-4621-9b77-af2343856eda"} label:{name:"service_name" value:"/Users/aniket/Library/Caches/JetBrains/GoLand2024.3/tmp/GoLand/___1go_build_github_com_SigNoz_signoz_otel_collector_cmd_signozotelcollector"} label:{name:"service_version" value:"dev"} label:{name:"table" value:"distributed_time_series_v4"} histogram:{sample_count:11 sample_sum:61 bucket:{cumulative_count:11 upper_bound:250} bucket:{cumulative_count:11 upper_bound:500} bucket:{cumulative_count:11 upper_bound:750} bucket:{cumulative_count:11 upper_bound:1000} bucket:{cumulative_count:11 upper_bound:2000} bucket:{cumulative_count:11 upper_bound:2500} bucket:{cumulative_count:11 upper_bound:3000} bucket:{cumulative_count:11 upper_bound:4000} bucket:{cumulative_count:11 upper_bound:5000} bucket:{cumulative_count:11 upper_bound:6000} bucket:{cumulative_count:11 upper_bound:8000} bucket:{cumulative_count:11 upper_bound:10000} bucket:{cumulative_count:11 upper_bound:15000} bucket:{cumulative_count:11 upper_bound:25000} bucket:{cumulative_count:11 upper_bound:30000}}} was collected before with the same name and label values
• collected metric "exporter_db_write_latency" { label:{name:"exporter" value:"metrics"} label:{name:"service_instance_id" value:"6941d912-6255-4621-9b77-af2343856eda"} label:{name:"service_name" value:"/Users/aniket/Library/Caches/JetBrains/GoLand2024.3/tmp/GoLand/___1go_build_github_com_SigNoz_signoz_otel_collector_cmd_signozotelcollector"} label:{name:"service_version" value:"dev"} label:{name:"table" value:"distributed_exp_hist"} histogram:{sample_count:11 sample_sum:10 bucket:{cumulative_count:11 upper_bound:250} bucket:{cumulative_count:11 upper_bound:500} bucket:{cumulative_count:11 upper_bound:750} bucket:{cumulative_count:11 upper_bound:1000} bucket:{cumulative_count:11 upper_bound:2000} bucket:{cumulative_count:11 upper_bound:2500} bucket:{cumulative_count:11 upper_bound:3000} bucket:{cumulative_count:11 upper_bound:4000} bucket:{cumulative_count:11 upper_bound:5000} bucket:{cumulative_count:11 upper_bound:6000} bucket:{cumulative_count:11 upper_bound:8000} bucket:{cumulative_count:11 upper_bound:10000} bucket:{cumulative_count:11 upper_bound:15000} bucket:{cumulative_count:11 upper_bound:25000} bucket:{cumulative_count:11 upper_bound:30000}}} was collected before with the same name and label values

[srikanthccv]

Thanks for the explanation. Please fix CI.

[grandwizard28]

Part of https://github.com/SigNoz/platform-pod/issues/621