Decouple metrics submission from RUST_LOG · solana-labs/solana#15215

(14 comments) (6 reactions) (1 assignee)Rust (12,651 stars) (3,950 forks)batch import

good first issue

説明

Problem

It is occasionally desired to reduce text log size, but continue submitting full metrics. With metrics level taken from RUST_LOG, this is not possible.

Relevant Code

Datapoints are pushed to the MetricsAgent based on log level here: https://github.com/solana-labs/solana/blob/d4ce59eee7e2537f02c827b6918de9af559b06bd/metrics/src/datapoint.rs#L153-L165

If the datapoint has sufficient log-level based on RUST_LOG to get submitted, then it will eventually reach here where it is both logged to file and pushed into a vector to be sumitted. https://github.com/solana-labs/solana/blob/d4ce59eee7e2537f02c827b6918de9af559b06bd/metrics/src/metrics.rs#L261-L264

Proposed Solution

Look into the feasibility of decoupling metrics from RUST_LOG

コントリビューターガイド

技術スタック: rust
領域: observabilityperformance
Issue 種別: feature
難度: 3
推定時間: 1-2 days
活動状況: blocked
明確さ: clear
前提条件: RustSolana metrics module
初心者向け度: 45
調査方針: Investigate the metrics submission flow in metrics/src/datapoint.rs and metrics/src/metrics.rs. Understand how datapoints are filtered by log level via RUST LOG. Explore adding a separate configuration mechanism (e.g., an environment variable) to control minimum log level for metrics independently. Review existing comments in the issue for any design constraints or rejected approaches.