libp2p-metrics

• Update prometheus-client to 0.23.0. See PR 5960.

• Add ReservationClosed as a relay metric. See PR 5869.

<!-- Update to libp2p-swarm v0.47.0 -->

<!-- Update to libp2p-core v0.43.0 -->

• Use web-time instead of instant. See PR 5347.

• Add BandwidthTransport, wrapping an existing Transport, exposing Prometheus bandwidth metrics. See also SwarmBuilder::with_bandwidth_metrics. See PR 4727.

• Add metrics for SwarmEvent::{NewExternalAddrCandidate,ExternalAddrConfirmed,ExternalAddrExpired}. See PR 4721.

• Enable gossipsub related data-type fields when compiling for wasm. See PR 4217.

• Previously libp2p-metrics::identify would increase a counter / gauge / histogram on each received identify information. These metrics are misleading, as e.g. they depend on the identify interval and don't represent the set of currently connected peers. With this change, identify information is tracked for the currently connected peers only. Instead of an increase on each received identify information, metrics represent the status quo (Gauge).

  Metrics removed:

  • libp2p_identify_protocols
  • libp2p_identify_received_info_listen_addrs
  • libp2p_identify_received_info_protocols
  • libp2p_identify_listen_addresses

  Metrics added:

  • libp2p_identify_remote_protocols
  • libp2p_identify_remote_listen_addresses
  • libp2p_identify_local_observed_addresses

  See PR 3325.

• Raise MSRV to 1.65. See PR 3715.

• Replace libp2p_swarm_connections_closed Counter with libp2p_swarm_connections_duration Histogram which additionally tracks the duration of a connection. Note that you can use the _count metric of the Histogram as a replacement for the Counter. See PR 3927.

• Remove the pong_received counter because it is no longer exposed by libp2p-ping. See PR 3947.

• Update to prometheus-client v0.19.0. See PR 3207.

• Add connections_establishment_duration metric. See PR 3134.

• Bump MSRV to 1.65.0.

• Update to libp2p-core v0.39.0.

• Update to libp2p-dcutr v0.9.0.

• Update to libp2p-ping v0.42.0.

• Update to libp2p-kad v0.43.0.

• Update to libp2p-relay v0.15.0.

• Update to libp2p-identify v0.42.0.

• Update to libp2p-swarm v0.42.0.

• Update to libp2p-dcutr v0.8.0.

• Update to libp2p-identify v0.41.0.

• Update to libp2p-relay v0.14.0.

• Update to libp2p-core v0.38.0.

• Update to libp2p-swarm v0.41.0.

• Update to libp2p-ping v0.41.0.

• Update to libp2p-kad v0.42.0.

• Update to libp2p-gossipsub v0.43.0.

• Add protocol_stack metrics. See PR 2982.

• Update rust-version to reflect the actual MSRV: 1.62.0. See PR 3090.

• Changed Metrics::query_result_get_record_ok from Histogram to a Counter. See PR 2712.

• Update to libp2p-swarm v0.40.0.

• Update to libp2p-dcutr v0.7.0.

• Update to libp2p-ping v0.40.0.

• Update to libp2p-identify v0.40.0.

• Update to libp2p-relay v0.13.0.

• Update to libp2p-kad v0.41.0.

• Update to libp2p-core v0.37.0.

• Update to libp2p-gossipsub v0.42.0.

• Update to libp2p-swarm v0.39.0.

• Update to libp2p-dcutr v0.6.0.

• Update to libp2p-ping v0.39.0.

• Update to libp2p-identify v0.39.0.

• Update to libp2p-relay v0.12.0.

• Update to libp2p-kad v0.40.0.

• Update to libp2p-core v0.36.0.

• Update to libp2p-swarm v0.38.0.

• Update to libp2p-dcutr v0.5.0.

• Update to libp2p-ping v0.38.0.

• Update to libp2p-identify v0.38.0.

• Update to libp2p-relay v0.11.0.

• Update to libp2p-kad v0.39.0.

• Track number of connected nodes supporting a specific protocol via the identify protocol. See PR 2734.

• Update to libp2p-core v0.35.0.

• Update to prometheus-client v0.18.0. See PR 2822.

• Update to libp2p-core v0.34.0.

• Update to libp2p-swarm v0.37.0.

• Update to libp2p-dcutr v0.4.0.

• Update to libp2p-ping v0.37.0.

• Update to libp2p-identify v0.37.0.

• Update to libp2p-relay v0.10.0.

• Update to libp2p-kad v0.38.0.

• Update dcutr events from libp2p_relay_events to libp2p_dcutr_events, to avoid conflict with relay events.

• Update to libp2p-core v0.33.0.

• Update to libp2p-swarm v0.36.0.

• Update to libp2p-dcutr v0.3.0.

• Update to libp2p-ping v0.36.0.

• Update to libp2p-identify v0.36.0.

• Update to libp2p-relay v0.9.0.

• Update to libp2p-kad v0.37.0.

• Update to prometheus-client v0.16.0. See PR 2631.

• Update to libp2p-swarm v0.35.0.

• Update to libp2p-dcutr v0.2.0.

• Update to libp2p-ping v0.35.0.

• Update to libp2p-identify v0.35.0.

• Update to libp2p-relay v0.8.0.

• Update to libp2p-kad v0.36.0.

• Update to libp2p-core v0.32.0.

• Update to libp2p-swarm v0.34.0.

• Update to libp2p-ping v0.34.0.

• Update to libp2p-identify v0.34.0.

• Update to libp2p-relay v0.7.0.

• Update to libp2p-kad v0.35.0.

• Move from open-metrics-client to prometheus-client (see PR 2442).

• Drop support for gossipsub in wasm32-unknown-unknown target (see PR 2506).

• Update dependencies.

• Migrate to Rust edition 2021 (see PR 2339).

• Include gossipsub metrics (see PR 2316).

• Update dependencies.

• Add initial version.