feat: refactor endpoint errors metric #14
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Summary of ChangesHello @auricom, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly improves the observability of RPC JSON endpoint health by integrating new Prometheus metrics. It allows for real-time monitoring of whether endpoints are reachable and provides detailed counts of various connection error types, which is crucial for diagnosing and responding to service disruptions. Highlights
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Code Review
This pull request introduces new Prometheus metrics to track endpoint availability and connection errors. While the PR title mentions 'latency', the changes focus on availability and errors, which is a valuable addition for monitoring. The implementation within pkg/metrics/metrics.go correctly defines and initializes EndpointAvailability and EndpointErrors metrics. However, the new functions for recording these metrics, RecordEndpointAvailability and RecordEndpointError, are not called anywhere within the provided changes. This means the new metrics will be exposed but never updated, rendering the feature incomplete. It's important to ensure these functions are called from the relevant parts of the application to make this feature functional.
| // RecordEndpointAvailability records whether an endpoint is reachable | ||
| // available should be true if endpoint is reachable, false otherwise | ||
| func (m *Metrics) RecordEndpointAvailability(chainID, endpoint string, available bool) { | ||
| value := 0.0 | ||
| if available { | ||
| value = 1.0 | ||
| } | ||
| m.EndpointAvailability.WithLabelValues(chainID, endpoint).Set(value) | ||
| } | ||
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| // RecordEndpointError records an endpoint connection error with its type | ||
| func (m *Metrics) RecordEndpointError(chainID, endpoint, errorType string) { | ||
| m.EndpointErrors.WithLabelValues(chainID, endpoint, errorType).Inc() | ||
| } |
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The new functions RecordEndpointAvailability and RecordEndpointError are defined but are not called anywhere in the pull request's changes. This means the new metrics (endpoint_availability and endpoint_errors_total) will be registered but will never be populated with data. This appears to be an incomplete implementation. Was the code that uses these functions intended to be part of this PR?
auricom
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