[PR #6547] [MERGED] [client] Fix blocked status lock via relay manager path #28432

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saavagebueno · 2026-08-05T08:06:21-04:00

saavagebueno commented

2026-08-05 08:06:21 -04:00

📋 Pull Request Information

Original PR: https://github.com/netbirdio/netbird/pull/6547
Author: @pappz
Created: 6/25/2026
Status: ✅ Merged
Merged: 6/28/2026
Merged by: @pappz

Base: main ← Head: fix/blocked-get-full-status

📝 Commits (2)

dec95a0 peer/status: move relay-state reads off the main mux
f5302f6 peer/status: clone relay states in nil-manager path

📊 Changes

1 file changed (+13 additions, -10 deletions)

View changed files

📝 client/internal/peer/status.go (+13 -10)

📄 Description

GetRelayStates held d.mux (RLock) while calling into the relay Manager (RelayStates/RelayConnectError/ServerURLs). Those calls can be slow or block on the relay manager's own locks while it is reconnecting, which kept the central Status mutex held and stalled every peer state writer (UpdatePeerState, ReplaceOfflinePeers, etc.) contending for it.

Guard relayMgr/relayStates with a dedicated muxRelays mutex and release it before invoking the relay Manager, so the relay read path no longer contends with the hot peer-state writers on d.mux.

Describe your changes

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Is it a bug fix
Is a typo/documentation fix
Is a feature enhancement
It is a refactor
Created tests that fail without the change (if possible)
This change does not modify the public API, gRPC protocols, functionality behavior, CLI / service flags, or introduce a new feature — OR I have discussed it with the NetBird team beforehand (link the issue / Slack thread in the description). See CONTRIBUTING.md.

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https://github.com/netbirdio/docs/pull/__

Summary by CodeRabbit

Bug Fixes
- Improved relay status handling so connection information is more reliable and up to date.
- Reduced lock contention during relay activity, improving responsiveness.
- When live relay data isn’t available, status now falls back more consistently to configured relay servers and related connection details.

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/netbirdio/netbird/pull/6547 **Author:** [@pappz](https://github.com/pappz) **Created:** 6/25/2026 **Status:** ✅ Merged **Merged:** 6/28/2026 **Merged by:** [@pappz](https://github.com/pappz) **Base:** `main` ← **Head:** `fix/blocked-get-full-status` --- ### 📝 Commits (2) - [`dec95a0`](https://github.com/netbirdio/netbird/commit/dec95a0757bbf9796c6c73cdefe03e0e5d431461) peer/status: move relay-state reads off the main mux - [`f5302f6`](https://github.com/netbirdio/netbird/commit/f5302f613e8c24519741ca8ddd7d0b0df48fd08c) peer/status: clone relay states in nil-manager path ### 📊 Changes **1 file changed** (+13 additions, -10 deletions) <details> <summary>View changed files</summary> 📝 `client/internal/peer/status.go` (+13 -10) </details> ### 📄 Description GetRelayStates held d.mux (RLock) while calling into the relay Manager (RelayStates/RelayConnectError/ServerURLs). Those calls can be slow or block on the relay manager's own locks while it is reconnecting, which kept the central Status mutex held and stalled every peer state writer (UpdatePeerState, ReplaceOfflinePeers, etc.) contending for it. Guard relayMgr/relayStates with a dedicated muxRelays mutex and release it before invoking the relay Manager, so the relay read path no longer contends with the hot peer-state writers on d.mux. ## Describe your changes ## Issue ticket number and link ## Stack  ### Checklist - [x] Is it a bug fix - [ ] Is a typo/documentation fix - [ ] Is a feature enhancement - [ ] It is a refactor - [ ] Created tests that fail without the change (if possible) - [ ] This change does **not** modify the public API, gRPC protocols, functionality behavior, CLI / service flags, or introduce a new feature — **OR** I have discussed it with the NetBird team beforehand (link the issue / Slack thread in the description). See [CONTRIBUTING.md](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTING.md#discuss-changes-with-the-netbird-team-first). > By submitting this pull request, you confirm that you have read and agree to the terms of the [Contributor License Agreement](https://github.com/netbirdio/netbird/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT.md). ## Documentation Select exactly one: - [ ] I added/updated documentation for this change - [x] Documentation is **not needed** for this change (explain why) ### Docs PR URL (required if "docs added" is checked) Paste the PR link from https://github.com/netbirdio/docs here: https://github.com/netbirdio/docs/pull/__  ## Summary by CodeRabbit * **Bug Fixes** * Improved relay status handling so connection information is more reliable and up to date. * Reduced lock contention during relay activity, improving responsiveness. * When live relay data isn’t available, status now falls back more consistently to configured relay servers and related connection details.  --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

saavagebueno added the pull-request label 2026-08-05 08:06:21 -04:00

saavagebueno closed this issue

2026-08-05 08:06:21 -04:00

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Reference: DYNR/netbird#28432