[DOC] Clarify endpoint access for consistent hash rings doc

[knylander-grafana]

The docs for Tuning the consistent hashrings need to be updated. It is unclear if there are requirements to access the web interfaces endpoint to be accessed.

Question to answer:

• Are there requirements for each of the interfaces to be available?
  • Distributor - distributor/ring - only available if you the "global" rate limiting option (reference)
  • Ingester - ingester/ring
  • Metrics-generator - metrics-generator/ring
  • compactor - compactor/ring
• Add the base URL for the API endpoints
• Add procedure for accessing the endpoints

Doc to update: https://grafana.com/docs/tempo/latest/operations/consistent_hash_ring/#tune-the-consistent-hash-rings

Investigation

I tried testing the API endpoint interfaces by using intro-to-mltp as the environment. The base URL is localhost:3000/api for accessing Grafana.

Access localhost:3000/api/metrics-generator/ring results with an error since /api isn't necessary.

However, the port for the Tempo API is 3200. The /api/ path isn't necessary. Changing the URL to localhost:3200/metrics-generator/ring results with this:

Ingester: The localhost:3200/ingester/ring works.

Compactor: localhost:3200/compactor/ring does not work. Maybe there is a configuration option that isn't set for this?

Distributor: localhost:3200/distributor/ring does not work -this might be a configuration setting.

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