[grafana] OpenTelemetry Collector Dashboard needs re-work

[julianocosta89]

Bug Report

When navigating through the Grafana Dashboards, I've noticed a couple of issues on the OpenTelemetry Collector Dashboard.

1. Service Instance Details tile broken.

   

   When checking for logs I got that:

   execution: found duplicate series for the match group {job="opentelemetry-demo/payment"} on the right hand-side of the operation: [{__name__="target_info", container_id="5c38fb88c2536dfd87f50da98077f66931ed5ac3ce3899d2fa28fca3f0dc1567", deployment_environment_name="otel", host_arch="arm64", host_name="9fa1d044967c", job="opentelemetry-demo/payment", os_type="linux", os_version="6.10.14-linuxkit", process_command="/usr/src/app/index.js", process_command_args="[\"/nodejs/bin/node\",\"--require=./opentelemetry.js\",\"/usr/src/app/index.js\"]", process_executable_name="/nodejs/bin/node", process_executable_path="/nodejs/bin/node", process_owner="nonroot", process_pid="1", process_runtime_description="Node.js", process_runtime_name="nodejs", process_runtime_version="22.21.1", service_name="payment", service_namespace="opentelemetry-demo", service_version="2.1.3", telemetry_sdk_language="nodejs", telemetry_sdk_name="opentelemetry", telemetry_sdk_version="2.2.0"}, {__name__="target_info", container_id="5c38fb88c2536dfd87f50da98077f66931ed5ac3ce3899d2fa28fca3f0dc1567", deployment_environment_name="otel", host_arch="arm64", host_name="9fa1d044967c", job="opentelemetry-demo/payment", os_type="linux", os_version="6.10.14-linuxkit", process_command_args="[\"/nodejs/bin/node\",\"--require=./opentelemetry.js\"]", process_executable_name="/nodejs/bin/node", process_executable_path="/nodejs/bin/node", process_owner="nonroot", process_pid="1", process_runtime_description="Node.js", process_runtime_name="nodejs", process_runtime_version="22.21.1", service_name="payment", service_namespace="opentelemetry-demo", service_version="2.1.3", telemetry_sdk_language="nodejs", telemetry_sdk_name="opentelemetry", telemetry_sdk_version="2.2.0"}];many-to-many matching not allowed: matching labels must be unique on one side
   

2. Also, I've noticed that the Signal flows are wrong, and pretty much useless.
   otlp -> processors -> jaeger doesn't help much, and even worse the metrics and logs only with processors.
   I'd suggest removing this tile.

3. Filter processors with No data.

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[julianocosta89]

@cyrille-leclerc is that something you or someone from your team could help?

[cyrille-leclerc]

Sure with pleasure.

[cyrille-leclerc]

FYI I'm working on it