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Configure gRPC Go to generate Prometheus metrics

gRPC Go supports Interceptors which is middleware that gRPC Server executes before the request is passed to the user’s application logic. It is a perfect way to implement common patterns: auth, logging, and monitoring.

To use Interceptors in chains, refer to go-grpc-middleware.

This library requires Go 1.9 or later.

To configure gRPC Go to generate Prometheus metrics, complete the following steps:

1. Navigate to go-grpc-middleware.

2. Complete the steps in the README.

3. Verify the presence of the following metrics in Prometheus:

   • grpc_server_handled_total
   • grpc_server_handling_seconds_bucket

Metrics

histogram_quantile (

0.99, sum(rate(grpc_server_handling_seconds_bucket[1m])) by (le) )

Alerts

Service KPI dashboard

This dashboard has the following KPIs for resources and requests:

• Request Rate
• Latency Average
• Latency P99
• Error Rate
• CPU %
• CPU Cores Used
• CPU Throttle
• Memory %
• Memory Bytes
• Disk Usage
• Network Usage