refactor: update to latest iroh-metrics branch #85
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Documentation for this PR has been generated and is available at: https://n0-computer.github.io/iroh-blobs/pr/85/docs/iroh_blobs/ Last updated: 2025-05-06T21:45:48Z |
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## Description Depends on n0-computer/net-tools#20 Until now, we were using a superglobal static `iroh_metrics::core::Core` struct to collect metrics into. This allowed us to use macros to track metrics from anywhere in the codebase. However, this also made it impossible to collect metrics *per endpoint*, which is what you want usually as soon as you have more than one endpoint in your app. This PR builds on n0-computer/iroh-metrics#15, n0-computer/iroh-metrics#22, and n0-computer/iroh-metrics#23. It removes the global metrics collection from all crates in the iroh repository. Instead, we now create and pass metrics collector structs to all places where we need to collect metrics. This PR disables the `static_core` feature from iroh-metrics, which means the macros for superglobal metrics collection are not available anymore. This is good, because otherwise we could easily miss metrics not tracked onto the proper metrics collector. This PR also updates iroh-dns-server and iroh-relay to use manual metrics collection. While this means that we have to pass our metrics structs to more places, it also makes metrics collection more visible, and we can now also split the metrics structs further easily if we want to separate concerns more. This PR should not change anything apart from metrics collection. Most places are straightforward conversions from the macros to methods on the metrics collectors. At a few places, logic was changed slightly to move metrics collection a layer up to save a few clones. ## Breaking Changes * All metrics structs (`iroh::metrics::{MagicsockMetrics, PortmapMetrics, NetReportMetrics}`) now implement `MetricsGroup` from the new version `0.34` of `iroh-metrics` and no longer implement traits from `iroh-metrics@0.32`. * Metrics are no longer registered onto the static superglobal `Core`. `iroh` does not use `static_core` feature of `iroh-metrics`. Metrics are now exposed from the subsystems that track them, see e.g. `Endpoint::metrics`. Several methods now take a `Metrics` argument. You can always pass `Default::default` if you don't want to unify metrics tracking with other sections. #### `iroh` * `iroh::metrics::{MagicsockMetrics, NetReportMetrics, PortmapMetrics}` all are now marked `non_exhaustive`, and implement `iroh_metrics::MetricsGroup` from `iroh-metrics@0.34` and no longer implement `iroh_metrics::Metric` from `iroh-metrics@0.32`. They also no longer implement `Clone` (put them into an `Arc` for cloning instead). * `iroh::net_report::Client::new` now takes `iroh::net_report::metrics::Metrics` as forth argument #### `iroh-dns-server` * `iroh_dns_server::server::Server::spawn` now takes `Metrics` as third argument * `iroh_dns_server::ZoneStore::persistent` now takes `Metrics` as third argument * `iroh_dns_server::ZoneStore::in_memory` now takes `Metrics` as third argument * `iroh_dns_server::ZoneStore::new` now takes `Metrics` as third argument * `iroh_dns_server::state::AppState` now has a public `metrics: Metrics` field * `iroh_dns_server::dns::DnsHandler::new` now takes `Metrics` as third argument * function `iroh_dns_server::metrics::init_metrics` is removed #### `iroh-relay` * `iroh_relay::metrics::{StunMetrics, Metrics}` all are now marked `non_exhaustive`, and implement `iroh_metrics::MetricsGroup` from `iroh-metrics@0.34` and no longer implement `iroh_metrics::Metric` from `iroh-metrics@0.32`. They also no longer implement `Clone` (put them into an `Arc` for cloning instead). ## Notes & open questions <!-- Any notes, remarks or open questions you have to make about the PR. --> ## Change checklist <!-- Remove any that are not relevant. --> - [x] Self-review. - [x] Documentation updates following the [style guide](https://rust-lang.github.io/rfcs/1574-more-api-documentation-conventions.html#appendix-a-full-conventions-text), if relevant. - [x] Tests if relevant. - [x] All breaking changes documented. - [x] List all breaking changes in the above "Breaking Changes" section. - [x] Open an issue or PR on any number0 repos that are affected by this breaking change. Give guidance on how the updates should be handled or do the actual updates themselves. - [x] [`iroh-gossip`](https://github.com/n0-computer/iroh-gossip) - n0-computer/iroh-gossip#58 - [x] [`iroh-blobs`](https://github.com/n0-computer/iroh-blobs) - n0-computer/iroh-blobs#85 - [x] [`iroh-docs`](https://github.com/n0-computer/iroh-docs) - n0-computer/iroh-docs#41 --------- Co-authored-by: dignifiedquire <me@dignifiedquire.com>
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Description
Updates metrics tracking to the new non-global tracking.
Metrics are tracked per downloader. We already only track metrics within the downloader, so this was rather straightforward.
The tracking of request stats was changed to be tracked once the download task completes, as this seemed easier to me. Needs a careful review, but I think the change is sound (i.e. no change).
Depends on n0-computer/iroh#3262
Breaking Changes
metrics::Metricsnow implementsMetricsGroupfrom the recent ìroh-metrics` release (TODO: fill in version after release)static_corefromiroh-metrics, but instead are tracked perDownloderand exposed viaDownloader::metricsNotes & open questions
Change checklist