Squashed 'livekit-server/' changes from 154b4d26..46c43095

46c43095 fix goreleaser workflow, version 1.13.1 (#4577) e0815be2 chore: improve docker test shutdown reliability (#4576) bfd9deff expose TCPFallbackRTTThreshold and AllowUDPUnstableFallback via config (#4556) b93c1e16 Release v1.13.0. (#4573) fd452212 Update mediatransportutil to get ICE candidate timeout config (#4572) 8be8c74a Update github workflows (#4463) c4e41872 Update go deps to v1.17.2 (#4462) dc8e0310 Update go deps to v4 (#4482) 20fd1ad2 turn: allow for providing secret via file (#4564) 6590570d Pin pion/dtls to v3.1.2 (#4570) cdbbee1f deps: bump protocol + psrpc to latest tips (#4565) d290de81 Correct config comment (#4563) 77ecf920 rtc: report participant session end time on room move (#4561) 63be96f6 Prevent panic from nil(illegal) syncState.Subscriptions message (#4560) 835ef1b3 Metrics for participant active, i. e. fully established. (#4557) 5bd42534 Document of advertise_internal_ip and external_ip_only (#4554) 356ae211 Config documentation for advertise_internal_ip and skip_external_ip_validation (#4552) 7c319a67 rtc: prevent duration reporting for inactive participants (#4550) 2dd5e632 telemetry: split webhook-processed hook out of NewTelemetryService (#4548) 222177a9 service: prevent nil deref in validate with wrapped join request (#4547) dd7580b4 Protect against nil clientInfo (#4546) 145689e6 Start tracking Twirp method request latency in prometheus too, not just in logs (#4545) cde89627 rtc: emit per-data-track bytes via BytesTrackStats (#4540) 2e22911d Remove backwards compatibility support for TURN auth. (#4539) 062d1219 Use NACKQuueInterface type. (#4538) 7f08b04c Add IsIntentionalDisconnect helper (#4537) 1ab2bf04 Clean up packet size logging (#4536) 8ab92a80 Don't require media sections when joining (#4535) 019a6640 rtc: report participant kind code and details (#4534) 77595d38 TEL-336: fix sip error categorization (#4528) f303f499 Always enable rtx codec (#4533) e4a8a55c Check Less and LessEq in version compare. (#4532) 37eb7a32 Release v1.12.0 (#4529) 4a7b1e85 Create NACK tracker only once. (#4527) 89faaeba Apply ttl check only when authenticate allocation creating (#4526) b32933b0 Log details of RTCP packets. (#4525) 8b79ec9e Support SIP auth realm for inbound. (#4522) 4b8db3cf Add integration test for TURN auth failures (#4524) ef2e5efe Log large packets receive/send. (#4521) d1236750 feat: auto create rooms for tokens with the RoomCreate grant (#4320) 7a3e595b apply room tags from JWT grant room configuration (#4518) ab7fdeab add AssignmentHook to AssignJob; propagate websocket write errors (#4516) cf20c9cd Add expiry to TURN password. (#4515) 20d4a3a1 Populate data track loggers with context (#4514) 12fff29a allow setting agent job assignment url (#4512) ba366fc7 Fix SIP media config upgrade. (#4511) 8fbc5adf update protocol for protojson (#4510) 3de6f517 Add TURN permission handler. (#4505) 8ffcef93 Update protocol to support SIP media config. (#4509) 1ab1e072 test: verify upstream and downstream connection stats end-to-end (#4508) c4fd71a5 Fix sense check in DeltaInfo gathering (#4507) 803999ef rename agent environment to deployment (#4506) bacc21e6 add helper to check for agent worker endpoint (#4503) 253f977d add duration seconds reporting (#4500) ffab3bd3 add agent environment (#4498) ccdf23c8 Use mediatransportutil/codec package, no functional change (#4497) 680703f2 Include reception reoprts in receiver report callback. (#4496) f51798bc Fix publish-only limitations being incorrectly applied to receivers (#4495) a002337d Legacy TrackInfo.Simulcast flag. (#4493) af1dcc88 Add CloseWithReason to agent SignalConn interface (#4492) d7c2daf1 report all simulcast layers (#4491) c1ad2b22 Misc optimisations. (#4490) 19b9e8c0 Additional data tracks logging (#4489) 743d9c8b add support for client capabilities (#4461) fc47e478 Close peer connection unconditionally to unblock set local/remote (#4485) 639406eb Update module github.com/pion/ice/v4 to v4.2.3 (#4481) dc6b7505 reduce some heap use in packet path (#4478) f3b80b28 fix: wrap IPv6 addresses in brackets in UDP TURN URLs (RFC 3986) (#4476) 3a7f2628 Turn off transceiver re-use on Safari. (#4474) d84f3d7a add more types to signum (#4473) 701a37c2 Convert sort.Slice -> slices.SortFunc (#4472) 85be9d70 Avoid stream allocator event data cast to interface and back. (#4471) b43685e8 Keep a shadow copy of tracks for use by different stream allocator state (#4470) 27c2b149 Consolidate RTCP packets and do RTCP callback outside lock. (#4469) 31083307 do not log data track stats if not started (#4468) 9ee06635 feat(pion/ice): replace deprecated NAT1To1 with SetAddressRewriteRules (#4466) 8ccad68d Release v1.11.0 (#4459) dbf5cf61 Store concrete ICE candidate for remote candidates. (#4458) 2a04bc3c fix publisher frame count reporting for simulcast streams (#4457) 1d804737 fix: limit join request and WHIP request body to http.DefaultMaxHeaderBytes (#4450) 3cfb71e7 Use Muted in TrackInfo to propagated published track muted. (#4453) 69aa9479 Some drive-by clean up (#4452) 6c81f678 Add subscriber stream start event notification (#4449) ce1bf47b Revert "fix: ensure num_participants is accurate in webhook events (#4265) (#…" (#4448) cdb0769c fix: ensure num_participants is accurate in webhook events (#4265) (#4422) c91e79af Switch to stdlib maps, slices (#4445) ea7b9c6f Update module github.com/livekit/protocol to v1.45.3 (#4435) 97378368 Update go deps (major) (#3179) d6aef547 Update go deps (#3862) afc9feae Update github workflows (#4331) 4b385612 chore: pin GH commits and switch to golangci-lint (#4444) 2974ba87 Unsubscribe from data track on close (#4443) 5dc4e90d Apply IPFilter when get local ip (#4440) 88c77dc6 compute agent dispatch affinity from target load (#4442) 8fe99377 Log join duration. (#4433) 0a503a57 Add `Close` method for UpDataTrackManager and call it on participant (#4432) 55912dff Add some simple data track stats (#4431) 050909e6 Enable data tracks by default. (#4429) 72c7e65c chore: log API key during worker registration (#4428) 8a67dd1b Do not close publisher peer connection to aid migration. (#4427) 91e90c10 Add some more logging around migration. (#4426) c6ddc879 isExpectedToResume is based on whether flushing or not. (#4425) 7d06cfca Keep subscription synchronous when publisher is expected to resume. (#4424) 934f8598 Clean up data track observers on unsubscribe. (#4421) 9674ac48 Cleaning up some logs and standardising log frequency. (#4420) 7b925304 Drop time inverted packets in RED -> Opus conversion. (#4418) 4d8d232a ensure participant init is correctly serialized for logging (#4417) 4fe80877 Log time inversion between incoming packets (#4415) 248d7394 Guard against timestamp inversion in RED -> Opus conversion. (#4414) 9ab8c1d5 clear track notifier observers on subscription teardown (#4413) 397cd09a Embedded turn test (#4412) 56326654 Prepare release v1.10.1 (#4408) e9b113c8 Make the TURN bind address configurable and allow for multiple addresses. (#4315) 4bc5e6bb Address malformed H264/H265 parsing issues. (#4407) 77a0a4fc AV1 parser overflow fix. (#4405) ff7fd7ed feat(agent-dispatch): add job restart policy (#4401) 34bd1e08 do not log roll over for padding only packets (#4396) 13d02ee9 add deadline to dtls connect context (#4395) 9055a349 Path check helpers (#4392) 1f1eeb68 Fallback to servicestore if rpc is unavailable (#4391) 59e9bb41 Fix TURN server URL (#4389) 9e0a7e54 Close both peer connections to aid migration. (#4382) 9474c807 route participant reads through PSRPC instead of Redis (#4387) a5333a86 add packet trailer stripping support (#4361) 0e3d765d Release v1.10.0 (#4380) bc3aeaf3 Update grpc to address CVE-2026-33186 (#4381) 8cdd6f4c Replace deprecated io/ioutil with io in whipservice (#4375) 89410df7 handle AGENT_ERROR disconnect reason (#4339) 8f984c77 Fix repair stream ID reporting for RTX pairing. (#4369) cdfaacfc Restart nacker on OOB sequence number restart. (#4368) 4a9e0045 Update protocol. (#4367) 750d5904 Add API to restart lite stats. (#4366) c8bb2578 Rename log field "pID" to "participantID" for consistency (#4365) 77fc74a7 Do not block all ext ID determination on stream allocator listener (#4364) 90a46fab Do not kick off migration of closed participant (#4363) 5dc2e7b1 Switch data track extension to 1-byte ID/length. (#4362) 7323ad02 Sample data send error logging. (#4358) 0d34e455 Add option to not re-use transceiver in e2ee. (#4356) 95225ff2 don't require media section for dual peerconnection mode (#4354) e9639538 Refine ipv6 support (#4352) b34b0472 Add StopEgress function to the EgressLauncher interface (#4353) 69235ed2 update readme (#4340) db1a8046 defensive check for peer connection instance (#4350) cb7dc2d0 TEL-405: support originating calls from custom domains (#4349) 7eaaaada Mark last run of grow bucket outside goroutine. (#4348) caa47522 Add option to require media sections when participant joining (#4347) 087050d1 Release v1.9.12 (#4346) 493e87df Fix SIP client timeout. (#4345) 52c28a93 Log a bit more details of out-of-order TWCC feedback report. (#4343) 516aeabf Use ParticipantTelemetryListener of LocalParticipant. (#4342) b3510565 Exclude ice restart case from offer answer id mismatch warning (#4341) 303657bc feat: make INSTALL_PATH overridable in install script (#3954) 9d418689 Send participant left event after track unpublished for moved (#4334) bab91868 do not discount packets lost on duplicate packets (#4333) 939794cf mark + restart (#4329) 75f9c462 Add debug for receiver restart. (#4328) 74891f30 Protect against incorrect temporal layer. (#4327) f51b2732 Update pion/webrtc and deps to update dtls (#4326) b81bac0e Key telemetry stats worker using combination of roomID, participantID (#4323) 2d40449f Update self-hosting deployment documentation link (#4312) 03e90dd7 Fix for some CodeQL reported issues (#4314) 77c858f0 Log stats worker when it not closable. (#4313) a6035212 ESP32 client info (#4267) 478e486a Copilot suggested improvement to Github Actions permissions (#4310) cbd2f82d Copilot suggested improvement to Github Actions permissions (#4311) a9b8d40d Publish is always on publisher peer connection. (#4307) 8ae56406 generate & log egressID for start egress request (#4303) 35d7ef88 Avoid alloc in RTPStatsReceiver.Update (#4302) bb744916 More optimisation in RTPStats module. (#4298) cefd5da9 Optimise some bits in rtpstats_receiver (#4297) 52a4b848 Read client protocol from query param (#4294) 195b17f6 Populate client_protocol field in ParticipantInfo (#4293) 370e0a4d Set up audio config in audio level module when config is updated. (#4290) f3e9b688 Do not increase max expected layer on track info update. (#4285) a9849340 Avoid logger data race. (#4284) 97016627 Do not hold lock when creating buffer (#4283) 6b68e3d5 Create buffer if needed when a PLI is requested. (#4282) 3cca7180 use separate allocation for signal stats telemetry guard (#4281) d2bae34d refresh telemetry guard on participant move (#4280) 333f0349 clear reference guard when resetting signal stats (#4279) d1bab17b Add session duration and participant kind to closing log. (#4277) 1e689e1a Reducing some info level logs. (#4274) 88facc02 adds a test to ensure agent worker errors cause disconnection (#4273) 76a41a7a Generate config flags (#4268) 700e1788 require participant broadcast when metadata/attributes are set in token (#4266) b61799ec Ignore parse addr error when add remote candidate (#4264) 01bd966f Add silent frame for pcmu/a (#4258) 0c33b8c6 chore: move codecs/mime stuff to protocol (#4255) 165c1735 Update livekit protocol to v1.44.0 (#4254) 343f12b8 Wrapping SIP errors for invalid argument and not found (#4253) aea044c5 Defer setting clock rate in RTPStats module till codec is bound. (#4250) d9f716c1 FIx receiver restart race (#4248) 0508ee9f remove copy/paste left over line (#4246) 40408407 Release v1.9.11 (#4245) f8675507 Do not remove participant from cache on disconnect. (#4241) a35a6ae7 Add participant option for data track auto-subscribe. (#4240) 07572511 Wrapping the invalid request errors for CreateSipParticipant (#4239) 843d8c3e Update Pion transport package. (#4237) a05690d2 Changing field naming of data track packet (#4235) c4015008 Clear participant version cache on disconnect (#4234) 18db4ec1 Log modified timeout of API context. (#4232) ac20ccda Log timeout in API. (#4231) 541a7d6c Change some logs to debugw (#4229) 52ab3374 Return on SDP fragment read error. (#4228) 7fae5ac9 Do not restart receiver on codec change mid-session. (#4225) dafdc36e Add option to force simuclast codec. (#4226) 0a7dd40b Use only layer 0 for SVC codecs. (#4224) 4ec0f8f4 Support OpenTelemetry tracing. Add Jaeger support. (#4222) 80ba93fa Do NACK updates as soon as flow state is processed. (#4221) 4405afe2 Use atomic pointer and return interface from RED transformer constructors (#4220) b649c2fe Remove method not needed from REDTransformer. (#4219) f0080f35 Remove enable arrival time forwarding method. (#4217) 335f4c33 Swap result sink atomically rather than closing and setting. (#4216) 46651c19 Release v1.9.10 (#4214) 08ac4ecd Support preserving external supplied time. (#4212) f6efccce report video size from media data for whip (#4211) d92f6a79 return iceservers for whip (#4210) 1a4758ed Skip restart callback if external. (#4208) dde4fb49 configurable dependency descriptor restart (#4207) 08793bea Use active at time to check for track not bound timeout. (#4206) 3606ce54 Do not warn about track not bound if participant is not ready. (#4205) b8ddd0f9 Taking interface{} -> any modernize bits (#4204) b91cd2e4 Rework receiver restart. (#4202) bb00c864 Restart API on receiver. (#4200) 25ece1e9 Minor refactor in buffer base and audio level (#4198) 599002f8 ignore PLI requests for non-video (#4196) 2510b946 Taking a bunch of go modernize suggestions. (#4194) ed8e6afc Handle repair SSRC of simulcast tracks during migration. (#4193) c6bf7a27 Fix logging key and other clean up around stream restart. (#4192) 3cb9abb6 Update pion/webrtc to v4.2.1 (#4191) 8b0efb8c Resolve RTX pair via OnTrack also. (#4190) 381bce03 Return extended sequence number only and not packet. (#4189) 6bcbf54e Always instantiate nacker when using out-of-band sequence numbers. (#4187) e71184de Store buffer after creating it. (#4186) 7c8ea115 Refactor receiver and buffer into Base and higher layer. (#4185) 4104b827 update protocol (#4183) cd99fec2 Make new path for signalling v1.5 support. (#4180) 32cd0370 Flush the ext packets on restart/close and release packets. (#4179) 1df1316b Move OnDataTrackMessage to participant listener to support replay. (#4178) e7601251 Make data message naming a bit more consistent. (#4177) a04e566d Use published track for model access in data down track. (#4176) 47c86be1 Add support for TURN static auth secret credentials (#3796) 24559a28 chore(deps): update github workflows to v6 (#3866) 0a824386 add explicit room exists servicestore op (#4175) 39bd077d Release v1.9.9 (#4174) cbb2c617 Publish/Unpublish counter match. (#4173) fb849edc Minor clean up (#4172) c28e5e45 fix(kindToProto): update protocol (#4171) 47324abd Drop run away receiver reports. (#4170) 462ec324 prevent uint overflow setting packet not found count (#4169) 5c841b8e Some logging changes. (#4168) 2f2d0a57 skip lost sequence number ranges in getIntervalStats (#4166) 898ebe05 clean up manual roomservice log redaction (#4165) 3e417253 move delete to oss service store (#4164) 5964efbb Ensure subscribe data track handles are unique (#4162) a26c4830 Add support for RTP stream restart. (#4161) 386f0b38 fix typo in clearing index when removing track from room track manager (#4158) 0abfb251 deregister observability function when participant is closed (#4157) 97aba5e7 Consistently undo update to sequence number and timestamp when the (#4156) 2317c295 Fix panic while removing track from room track manager. (#4153) a0a28ac5 Avoid duplicate track add to room track manager. (#4152) f01008f8 Revert telemetry stats worker wait configuration. (#4151) ca4b56d2 Handle case of sequence number jump just after start. (#4150) 97099cae Configurable telemetry stats worker clean up wait. (#4148) d7db7cb3 chore: fix a large number of spelling issues (#4147) cadf2ad9 Release v1.9.8 (#4145) 498304cd defensive nil check (#4144) 20f6a497 Store ddParser in atomic.Pointer (#4143) 037cb906 release ext packet if patching fails (#4142) dd598ef2 Release ExtPacket if dependency descriptor or other parsing fails (#4141) 35b0e2bc update webrtc to 4.1.8 to pick up DTLS fingerprint check during handshake (#4140) 1c1a836c Mark RTCP buffer Write as noinline. (#4138) ea9b2177 protocol deps to get inactive file adjusted memory usage. (#4137) 64f3d1e9 switch participant callbacks to room to listener interface (#4136) c6e6c021 add debug metric for tracking references (#4134) a30c79fa Use isEnding to indicate if down track could be resumed. (#4132) 8c241ecf Fix RTCP reader leak in DownTrack. (#4131) 3eef869a Do not pause rid in SDP (#4129) 8e01e595 Release 1.9.7 (#4128) 7c1a0fab Fix concurrent map access. (#4127) 14446b1c Let participant close remove the published tracks. (#4125) fa0633aa move utils.WrapAround to mediatransportutil (#4124) f8706cd4 Update pion/ice to stop gather first on close (#4123) 7954748d Data tracks (#4089) 7158d983 log bucket growth (#4122) 04b35eb6 Release v1.9.6 (#4121) ebdcead5 Update mediatransportutil to get bucket packet size limit. (#4120) 411b09f6 Release v1.9.5 (#4119) 8dcf235a Update pion/ice - attempt to address tcp packet conn close hang (#4116) 64c65143 Update mediatransportutil (#4115) 0a2943bb Clean up bits added to debug peer connection close hang. (#4114) 9c483a69 Use released version v1.8.41 of pion/sctp (#4113) 35c79a57 Update SCTP hash, had the wrong one in previous PR (#4111) e0fbbef1 Update pion/sctp with RFC9260 revert (#4110) f3c80917 Try SCTP with read deadline to unblock abort. (#4109) bd5382da Splitting transport close timeout logs. (#4108) 6d4154b8 Update pion/ice. (#4107) a6418ae2 Log more peer conenction state on close timeout. (#4105) 06d99974 Check for cancel on unsubscription/source track going away. (#4104) 7f10e18b Record join/publish/subscribe cancellations. (#4102) 40293632 Clear stereo=1 if stereo is not enabled. (#4101) 70f6def3 Add checks for participant and sub-components close. (#4100) ffbabcc7 Switch forwarding latency log to Debugw (#4098) 27d82a72 Fix "address" typo in transport logs (addddress → address) (#4097) 37a06821 logger proto redaction. (#4090) 54cf7d46 Control latency of lossy data channel (#4088) 5175c1af Lock x/tools at 0.37.0 (#4085) d510fff1 Downgrade x/tools to be able to make a release (#4084) c3ea5890 Prepare release v1.9.4. (#4083) 3a128e61 protocol bump for SIP error mapping and validation (#4081) c3964ba2 Use sync.Pool for objects in packet path. (#4066) f8b994d4 Forwarding latency measurement tweaks. (#4080) f4929f09 Revert "Revert pion/transpor to v3.0.8 (#4073)" (#4074) a04d9c48 Revert pion/transpor to v3.0.8 (#4073) 2d5054ad kind details for connector (#4072) a272e28a Log raeson for subscriber not being to determine codec. (#4071) b9b4eec9 Update pion/transport to v3.1.1 (#4070) b23d093c update protocol (#4069) 4ce07bed Higher resolution forwarding latency histogram. (#4067) 858db7ab fix(deps): update module github.com/livekit/protocol to v1.43.0 (#4015) 1dc9b8fc Use buffered indicator to exclude from forwarding latency. (#4062) f117ee51 Track start up delay. (#4061) 4872f205 Return write count from WriteRTP. (#4059) d0ba46b4 Log write count atomic. (#4057) ae5fb7e8 Add packet to forwarding stats only if packet is forwarded. (#4056) f6909192 Update PsRPC to get redis pipeliner implementation. (#4055) ca3c507b Prevent invalid track access while peer connection is shutting down. (#4054) 9ca6ee00 Use replace so that x/tools does not get overridden (#4048) b9323eab chore(deps): downgrade x/tools for counterfeiter (#4047) 2f1e6c36 Prep release v1.9.3 (#4046) 9d5c351d Fix prom units for forwarding latency/jitter. (#4045) e183657c Add prom histogram for forwarding latency and jitter. (#4044) 1eefeb30 Enable AbsCaptureTimeURI in RTC configuration (#4043) 075a7576 Use simulcast codec as default policy for audio track (#4040) c264b504 Don't warn 0 payload type for PCMU (#4039) 32fc3525 Broadcast cond var on RTX write. (#4038) 061eb8b4 AddDownTrack to regressed codec after restarting forwarder. (#4037) c87eb8ed fix: add missing Unlock() in AddReceiver (#4036) 70444924 if RingingTimeout is provided, deadline should be set to that timeout. (#4018) ab906d71 Prevent leakage of previous codec after codec regression. (#4035) 79b03f97 Log queueing latency when encountering high forwarding latency (#4034) 29117b14 set max layer in allocation (#4033) 15b19ccd Remove ~ from rid which indicates disabled layer to get the actual rid (#4032) 34e16a87 Check more conditions for opportunistic alloc. (#4031) 81fbd355 Use the optimal allocation function for opportunistic allocation. (#4030) a2ce73e0 Do not bind buffer if codec is invalid. (#4028) cef6fdb7 Correct direction for request/response for prom counters. (#4027) 5042c06c Use rtp converter from protocol/utils/rtputil (#4020) 5a426d15 Use rtp converter from protocol/utils (#4019) 35fb8877 feat: use env var for GOARCH (#4012) c0397696 Issue #1 only: Fix spatial layer initialization in Forwarder (#4003) 2afbf0e8 Some golang modernisation bits. (#4016) 484f784a Prepare release v1.9.2 (#4011) ad074ed2 counterfeiter needs an older version of x/tools (#4009) e63e8b6f Include mid -> trackID in both SDP offer and answer. (#4007) 781dfede Do not call receiver methods under settings lock. (#4006) 69ff25a0 Use answer with mid -> trackID mapping when in single peer connection (#4005) fe912acf Update pion/webrtc to prevent GetStats panic. (#4004) 7930dcde Do not try to read stats from peer connection after close. (#4002) ca0d5ee9 Count request/response packets on both client and server side. (#4001) dd62eb00 Resort to full search for requested quality is not available. (#4000) f6ca82d1 Revert to using silence packets for audio dummy start. (#3999) 0e2c59c8 Sort codec layers when adding track (#3998) 100bb46a Adding ProviderInfo to GetSIPTrunkAuthenticationResponse (#3993) a8d4df66 "Power of Two Random Choices" option for node selection (#3785) a20bbe34 Log RPC details. (#3991) 158496bc Increment RTP timestamp on padding when using dummy start. (#3989) 4f6ed65d Limit check to red + opus when looking for primary codec match. (#3988) a87f6c4b Allow passing inline trunk for outbound calls. (#3987) bf06596f Support Opus mixed with RED when encrypted. (#3986) ea208a1c Add encryption datapacket type (#3869) 2a6adbe8 Use padding only packets for dummy start of audio. (#3984) be018f97 Provide the InputVideo/AudioState to Ingress in WHIPRTCConnectionNotify (#3982) 146bd969 Do not panic of redis is not configured (#3981) 01337ba7 Do not start forawarding on out-of-order packet. (#3985) c7f625d6 Do not force codec regression between opus and red. (#3980) 3bd20ddb Revert unintentional change to not handle transport fallback on (#3970) 89a2f46c Update deps to fix redis issue when 1 cluster address is provided (#3969) 060719d1 add config for user data recording (#3966) b3ee219c fix stats worker closed condition (#3965) 3d737031 add idempotent reference count to telemetry stats worker (#3964) 735c663a Update protocol for EventKey helper. (#3963) 646b9de8 Add node_ip to config-sample.yaml (#3960) 0bf7b178 avoid logging on small values (#3958) 00ff2ab9 Adjust for hold time when fowarding RTCP report. (#3956) e180be06 short circuit participant broadcast filter in livestream mode (#3955) bfba6fee Adjust stream allocator ping interval based on state. (#3951) 3837006b Revert "Switch ops queue a singly linked list. (#3949)" (#3950) 990c5faf feat: server rpc apis (#3904) 80b11662 Switch ops queue a singly linked list. (#3949) 56ee2328 handle terminated job requests (#3948) 49f9b9c8 Flush stats when there are no packets. (#3947) e6a3df1e ForwarStats.GetStats needs to be public (#3946) 824d116b Tweaks tresholds for logging high forwarding latency/jitter. (#3945) 408492e0 Log some information around high forwarding latency. (#3944) 6a41fae5 Use microseconds for forwarding stats. (#3943) 856e0871 mediatransportutil to log local address when validating external IP (#3942) 40101cf7 Update protocol for SipCreateParticipant (#3939) b07e7a38 Use difference in key frame counter to stop seeder. (#3936) d7f92878 Avoid matching on empty track id. (#3937) 56fb2885 Do DD restart only if DD structure is present. (#3935) 86facce9 More debugging of DD jump (#3934) 6058a3f6 Add debugging from DD frame number wrap around. (#3933) dc6825c0 mediatransportutil crash fix for logging local address (#3930) d6f0588f Update mediatransportutil to log external IP found via STUN. (#3929) 2c30a064 Fix dynacast subscriber node clearing on move participant. (#3926) 6489237e Simulcast audio fixes (#3925) 9f0ab870 Wait for `SetRemoteDescription` before configuring senders. (#3924) df6c26db Subscrbed audio codecs - update from remote nodes. (#3921) 798fa761 Support simulcasting of audio (#3920) f4a06cf0 Clean code as there is no oss sweeper for ingress (#3918) 5f561b4f Include agent_name as a participant attribute (#3914) 782a35e8 update protocol for psrpc (#3915) eee2001a Set publisher codec preferences after setting remote description (#3913) fc995533 add incoming request id to request response message (#3912) 76645fad Rpcs for ingress proxy WHIP (#3911) 991a4a4f Refactor subscribedTrack + mediaTrackSubscriptions. (#3908) e16b3ba9 Use gzip reader pool (#3903) 17c34921 update protocol for sip api change (#3902) 2f43a575 Release candidate for v1.9.1 (#3899) 07c40cf3 Use `RequestResponse` to report protocol handling errors (#3895) 98352fd0 Prevent race in determining BWE type. (#3891) f7291fda Do not send both asb-send-time and twcc. (#3890) 21b42fa6 Do not advertise NACK for RED. (#3889) 6633bf93 Use departure timeout from room preset. (#3888) 38f7906e Handle migration better in single peer connection case. (#3886) 5026de2b handle frame number wrap back in svc (#3885) 091e3c13 Revert to using answer for migration case. (#3884) 2aeadf14 init ua parser once (#3883) 998a9f94 Switch known rids from 012 -> 210, used by OBS. (#3882) 890fd942 Single peer connection mode (#3873) bfe98eaa fix: ensure the participant kind is set on refresh tokens (#3881) 8d270e2a chunk room updates (#3880) b4e146c5 update mediatransport util for ice port 3478 (#3877) dc3a7753 Fix timeout handing in StopEgress (#3876) d62336e1 Remove unnecessary check (#3870) c58e5d23 Update golang Docker tag to v1.25 (#3864) 98d577ee Update module github.com/livekit/protocol to v1.40.0 (#3865) afbf541e Update pion deps (#3863) b660c3b5 Extract video size from media stream (#3856) 456b8709 Fix missed unlock (#3861) d500806e Handle no codecs in track info. (#3859) 11b240d6 Log track settings more. (#3853) 1aa0f963 Log signal messages on media node. (#3852) b182d07b Log signal messages as debug. (#3851) a370bb20 Support G.711 A-law and U-law (#3849) fa5f4ef3 Populate SDP cid in track info when available. (#3845) eed27885 Send `participant_connection_aborted` when participant session is closed (#3848) 61e59346 Update go deps (#3439) 1b228913 Support video layer mode from client and make most of the code mime aware (#3843) f2da4444 Support per simulcast codec layers. (#3840) f275f592 handle SyncState in join request (#3839) 5d44cf6d Use wrapped join request to be able to support compressed and uncompressed. (#3838) 5ca16264 Support join request as proto + base64 encoded query param (#3836) 7dea1012 Clean up missed v2 pieces (#3837) 34a49130 Delete v2 signalling (#3835) 1fe33716 Fix: RingingTimeout was being skipped for transferParticipant (#3831) 5751692a deps (#3829) db4bc127 Get to the point of connecting publisher PC and using it for async signalling (#3822) 5e483e75 update readme (#3809) e3155b14 Get to the point of establishing subscriber peer connection. (#3821) a7ce1382 HTTP DELETE of participant session (#3819) 01de0e36 Do not send leave if nil (to older clients) (#3817) 10103449 Add country label to edge prom stats. (#3816) 68387b41 Minor tweak to keep RPC type at service level. (#3815) a75295fc More v2 signalling changes (#3814) b20db94d Validation end point for v2 signalling. (#3811) f2f595f4 update readme (#3808) fffc2ac0 Use signalling utils from protocol (#3807) f5fc82d3 Filling out messages unlikely to change in v2. (#3806) 1c99b9ad Split signal segmenter and reassembler. (#3805) 0a1bfd30 Signal handling interfaces and participant specific HTTP PATCH. (#3804) 7837c8e5 starting signaller interface (#3802) 18ce5244 Handle Metadata field from RoomConfig (#3798) 2a6a9b8a Grouping all signal messages into participant_signal. (#3801) 078c01fa Signal v2: envelope and fragments as wire message format. (#3800) b9a44c3f Signalling V2 protocol implementation start (#3794) ba702a53 forward agent id to job state (#3786) 1f31d430 Map ErrNoResponse to ErrRequestTimedOut in StopEgress to avoid returning 503 (#3788) 51bbe8c5 Set participant active when peerconnection connected (#3790) 40028dc3 Normalize known rids. (#3779) ddd92329 Return default layer for invalid rid + track info combination. (#3778) 8c033ce9 Enable H265 by default (#3773) 7678e087 Set rids for all codecs. (#3772) 5d636acf Limit taking rids from SDP only in WHIP path. (#3771) 4d09e5b5 Log SDP rids to understand the mapping better. (#3770) c69f1aae Revert "Temporary change: use pre-defined rids" (#3769) 8197438e bounds check layer index (#3768) d11da5f5 Temporary change: use pre-defined rids (#3767) cb4da533 fix(deps): update module github.com/livekit/protocol to v1.39.3 (#3733) d6d2b6d8 feat(cli-flags): add option for cpu profiling (#3765) 9fc4ddbe ClearAllReceivers interface is used to pause relay tracks. (#3761) 1216113b Do not need to just clean up receivers. Remove that interface. (#3760) ef6c38ce Log previous allocation to see changes. (#3759) 01bf9685 SVC with RID -> spatial layer mapping (#3754) c481396f offer could be nil when migrating. (#3752) 8c2fc0bc Fix svc encoding for chrome mobile on iOS (#3751) e467daa0 move egress roomID load to launcher (#3748) 3783ebb3 feat(cli): update to urfave/cli/v3 (#3745) 03d3fcab Fix data packet ParticipantIdentity override logic in participant.go (#3735) 068b4366 reuse compiled client config scripts (#3743) e754a860 return error when moving egree/agent participant (#3741) 7542cf07 remove unused code (#3740) 9d569e2f Take ClientInfo from request. (#3738) 80774263 chore: set workerid on job creation (#3737) 5549ab55 Revert clearing RIDs. (#3732) ae967313 Clear rids if not present in SDP. (#3731) 0e033907 Return highest available layer if requested quality is higher than (#3729) 9ce737db Add log for dropping out of order reliable message (#3728) 1b95e818 Don't check bindState on downtrack.Bind (#3726) 670f927f Set and use rid/spatial layer in TrackInfo. (#3724) a9e29116 Add Id to SDP signalling messages. (#3722) 4ec828ce Fix bug with SDP rid, clear only overflow. (#3723) 8f6c3a9b Clear rids from default for layers not published. (#3721) ce07740e Add simulcast support for WHIP. (#3719) e98fb94f Create client config manager in room manager constructor. (#3718) fdf9b852 e2e reliability for data channel (#3716) 35dda8ea swap pub/sub track metrics (#3717) 1d9a4366 Do not require create permission for WHIP participant. (#3715) e0aea17a Flush stats on close (#3713) 630aa7d9 implement observability for room metrics (#3712) e7f0294e remove unused ws signal read loop (#3709) 77f70b18 for real, pick up protocol change for webhooks queue length bucnkets (#3707) 7b180646 protocol dep for webhook stats buckets (#3706) b0ab95ba warn about credentials when used in tokens (#3705) a72ce30f Small changes to add/use helper functions for length checks. (#3704) 425f6bb3 Allow passing extra attributes to RTC endpoint. (#3693) 758e1762 Add a trend check before declaring joint queuing region. (#3701) fe81e411 Adds Devin to readme so it auto updates DeepWiki weekly (#3699) 09dede35 version bump v1.9.0 (#3698) fc867c5b Webhook prom stats (#3697) 0e17916f Do not use Redis pipeline for SIP delete. Fixes Redis clustering support. (#3694) 1b760393 WHIP support. (#3692) e4f7d81b add client ip to agent worker registration (#3675) 6b849a87 update mediatransportutil for sctp congestion control (#3673) 83b189b0 Add ServerInfo to ReconnectResponse (#3671) 5f87a35b Prevent operating on swapped out map. (#3670) 13b55a80 move agent token (#3669) c9385edd handle agent worker jwt (#3668) 3b359d8b Use logger resolver reset to reset contexts. (#3665) dbb70e0f Fix dynacast quality for moving out tracks (#3664) 0a5f3c2a resolve new room name logger earlier when moving participant (#3662) 2df05517 Revert unbound transceiver stop. (#3661) 5172af15 ~Send initial participant update only after a participant becomes active.~ - General clean up (#3655) 5d4d86f8 protocol to pick resolver values replace (#3659) 7f8e6323 Send self participant update immediately. (#3656) 11630878 Use unordered for lossy data channel. (#3653) aee34ffe log request for agent dispatch api (#3650) 793b383a Add Moving participant to another room (#3648) 2fff36cb Stub MoveParticipant so that cloud can include the latest protocol. (#3646) d4ab1142 Redact address (#3643) b83190a3 protocol update to fix memory stats path (#3642) a1f4e88e Update protocol to latest, got bit by tag (#3641) 8d3902af Protocol to pick up cgroups v2 memory path fix (#3640) 2f002388 Use participant close reason in remove. (#3639) 58822c26 Include clientInfo in connectivity logs. (#3638) 6d6393a6 Take AudioFeatures from AddTrack. (#3635) 08670412 Limit buffer queue before Bind. (#3634) 9f5bc9b9 Avoid synthesising duplicate feature. (#3632) 847239c3 Disable vp9 for safari 18.4 (#3631) f69ab680 Populate the sender identity when translating to user packet. (#3628) e1490558 Forward data between WHIP client and non-WHIP client (#3627) 6739e7bc Broadcast inside lock (#3626) f24152b4 Call Broadcast in lock scope. (#3625) b760918a Use logger from request context. (#3623) 34a2e2c1 Check for multiple layers for managed track. (#3622) 4955ebe4 Forward transfer headers to internal request (#3615) d9ee9214 Set up RTX for WHIP publish (#3619) d8cf5439 Determine TURN connection type and no fallback for TURN/TLS. (#3612) d0d212fd Fix WHIP ICE restart. (#3616) 5e7f8a12 Update mediatransportutil for max sctp message (65K) (#3611) 28dfac14 Use exported GetEgressNotifyOptions (#3604) 75236bef protocol update to fix IPv6 SDP fragment parsing (#3603) 2130980d Add basic video support to WHIP. (#3602) e5cbb227 Allow specifying extra webhooks with egress requests (#3597) 7e16106a Add OnSubscirberReady callback on LocalParticipant. (#3600) 5c2d96b9 Check DestinationRoom of VideoGrant for participant forwarding (#3599) 2e236a19 Revert participant state ACTIVE change. (#3598) 35ac5f56 Add support for WHIP ICE Trickle/Restart. (#3596) ec2dff96 Fix SIP updates when replacing slices. (#3592) e24fe77b map PEER_CONNECTION_DISCONNECTED -> CONNECTION_TIMEOUT (#3591) 6ee6eb43 Do not drop audio codecs (#3590) 68357ba6 List audio codecs after video codecs. (#3589) 05a891ff Fix rule (had an extra bracket) (#3588) d7c41091 Exclude RED from enabled codecs for Flutter + 2.4.2 + Android. (#3587) ee08aede skip out of order participant state updates (#3583) 15a8d9a2 Break track published fuse when there are no tracks (#3581) 35f83c51 Replace Promise with Fuse. (#3580) 07fe9b72 Prevent migration race. (#3579) ac8082ff Use older SDP module to accommodate bad SDP. (#3578) 1c8307c7 Use cgroup for memstats. (#3573) e9be0fca log SDP offer on error (#3577) 3238ab8d Calculate rates for memory used and total. (#3570) d08487bf Unlabeled (pass through) data channels. (#3567) 52ce18d5 fix: revert recent changes to determine simulcast from sdp (#3565) cdfbb106 Audio uses signal SignalCid and SdpCid. (#3564) ed5e2f16 Keep simulcast information tied to receiver. (#3563) ad010cfc chore(logs): log VLS type for VP9/AV1 (#3561) 8cc17f8f Rework node stats a bit. (#3555) 15f56551 fix(video): determine svc/simulcast from SDP for advanced codecs (#3549) 2b6a46f4 Handle `prefer_regression` for backup codec (#3554) b0abb0ae Add option to use different pacer with send side bwe. (#3552) 26822b6b ParseUsername utility for TURN user name. (#3547) 55909ed7 log the initial join response (#3546) 97fcb82a Fix: Return NotFoundErr instead of Unavailable when the participant does not exist in UpdateParticipant. (#3543) 75d0e18e Implement SIP update API. (#3141) e118aff1 Fire track subscribed when the subscriber connected (#3540) 13417c01 Send mute event only on change (#3537) 7f4c4597 Stubs for SIP update API. (#3533) fe673bb2 Send regressed codec upstream stats to analytics. (#3532) 8eb81388 Use a generation to counter to stop key frame seeder on codec change (#3531) 188470a2 Do not accept unsupported track type in AddTrack (#3530) 507fc9cf Do not instantiate 0 sized sequencer. (#3529) 20bddfea Clean up published track on participant removal. (#3527) 65d8aa28 Handle subscribe race with track close better. (#3526) a6cb00b3 Reduce seeder duration to 30s and also do not force send PLI. (#3525) c8233205 Add a key frame seeder in up track. (#3524) 0f61ff3a Remove redundant log (#3523) 7685cd25 Log ParticipantInit on signal start to get a picture of join params (#3522) ac9e62ef add server agent load threshold config (#3520) cd5d32f0 Add pID and connID to log context to make it easier to search using pID. (#3518) 2d9aa6dd Update api call info method (#3515) b3779a90 WebHookConfig (#3517) 6121b9af Check ForwardParticipant room name (#3514) 9a7c9442 mediatransportutil update (#3511) 50ab47c1 Log packet drops/forward. (#3510) 139d1b13 Add ForwardParticipant method to room service (#3507) 6c04909f Use atomic to store codec. (#3505) 7f6afe05 Prevent bind lock deadlock on muted. (#3504) 48063df5 load mime type before calling writeBlankFrameRTP (#3502) d2e6cd15 Do not bind lock across flush which could take time (#3501) 47896f50 Update protocol and IO service. (#3499) 1dc42eef Bump github.com/go-jose/go-jose/v3 from 3.0.3 to 3.0.4 (#3497) 3a35cbc4 Log migration complete only when coming from sync (#3496) c2f17a10 refactor: using slices.Contains to simplify the code (#3495) 01e51dbd fix: fix the wrong error return value (#3493) ff9115b2 Disable dd parser for vp8 if extension is not found (#3492) c3e06f05 Do not attempt to create objects for URL ingresses as the ingress service will do so (#3491) f0edfbba Fix receiver rtt/jitter. (#3487) 05dfd30d Take RTT and jitter from receiver view while reporting track stats for (#3483) 04ed5683 Don't issue TrackPublished/Unpublished event on migrated track (#3482) 1cffe30c Use a RED transformer to consolidate both RED -> Opus OR Opus -> RED (#3481) 591888f7 Fix missing RTCP sender report when forwarding RED as Opus. (#3480) git-subtree-dir: livekit-server git-subtree-split: 46c4309554d37d23ee8da88a8a7e02a68fba09c1
2026-06-25 23:54:33 +09:00
parent 0da97ebd21
commit 6bd7fac875
291 changed files with 37631 additions and 15381 deletions
@@ -23,6 +23,7 @@ import (
 	"go.uber.org/zap/zapcore"
 	"google.golang.org/protobuf/proto"

+	"github.com/livekit/livekit-server/pkg/config"
 	"github.com/livekit/livekit-server/pkg/utils"
 	"github.com/livekit/protocol/auth"
 	"github.com/livekit/protocol/livekit"
@@ -94,7 +95,7 @@ type NullMessageSource struct {
 func NewNullMessageSource(connID livekit.ConnectionID) *NullMessageSource {
 	return &NullMessageSource{
 		connID:  connID,
-		msgChan: make(chan proto.Message, 0),
+		msgChan: make(chan proto.Message),
 	}
 }

@@ -152,8 +153,13 @@ type StartParticipantSignalResults struct {
 type MessageRouter interface {
 	// CreateRoom starts an rtc room
 	CreateRoom(ctx context.Context, req *livekit.CreateRoomRequest) (res *livekit.Room, err error)
+
 	// StartParticipantSignal participant signal connection is ready to start
-	StartParticipantSignal(ctx context.Context, roomName livekit.RoomName, pi ParticipantInit) (res StartParticipantSignalResults, err error)
+	StartParticipantSignal(
+		ctx context.Context,
+		roomName livekit.RoomName,
+		pi ParticipantInit,
+	) (res StartParticipantSignalResults, err error)
 }

 func CreateRouter(
@@ -162,8 +168,9 @@ func CreateRouter(
 	signalClient SignalClient,
 	roomManagerClient RoomManagerClient,
 	kps rpc.KeepalivePubSub,
+	nodeStatsConfig config.NodeStatsConfig,
 ) Router {
-	lr := NewLocalRouter(node, signalClient, roomManagerClient)
+	lr := NewLocalRouter(node, signalClient, roomManagerClient, nodeStatsConfig)

 	if rc != nil {
 		return NewRedisRouter(lr, rc, kps)
@@ -177,19 +184,24 @@ func CreateRouter(
 // ------------------------------------------------

 type ParticipantInit struct {
-	Identity             livekit.ParticipantIdentity
-	Name                 livekit.ParticipantName
-	Reconnect            bool
-	ReconnectReason      livekit.ReconnectReason
-	AutoSubscribe        bool
-	Client               *livekit.ClientInfo
-	Grants               *auth.ClaimGrants
-	Region               string
-	AdaptiveStream       bool
-	ID                   livekit.ParticipantID
-	SubscriberAllowPause *bool
-	DisableICELite       bool
-	CreateRoom           *livekit.CreateRoomRequest
+	Identity                livekit.ParticipantIdentity
+	Name                    livekit.ParticipantName
+	Reconnect               bool
+	ReconnectReason         livekit.ReconnectReason
+	AutoSubscribe           bool
+	AutoSubscribeDataTrack  *bool
+	Client                  *livekit.ClientInfo
+	Grants                  *auth.ClaimGrants
+	Region                  string
+	AdaptiveStream          bool
+	ID                      livekit.ParticipantID
+	SubscriberAllowPause    *bool
+	DisableICELite          bool
+	CreateRoom              *livekit.CreateRoomRequest
+	AddTrackRequests        []*livekit.AddTrackRequest
+	PublisherOffer          *livekit.SessionDescription
+	SyncState               *livekit.SyncState
+	UseSinglePeerConnection bool
 }

 func (pi *ParticipantInit) MarshalLogObject(e zapcore.ObjectEncoder) error {
@@ -209,6 +221,7 @@ func (pi *ParticipantInit) MarshalLogObject(e zapcore.ObjectEncoder) error {
 	logBoolPtr("Reconnect", &pi.Reconnect)
 	e.AddString("ReconnectReason", pi.ReconnectReason.String())
 	logBoolPtr("AutoSubscribe", &pi.AutoSubscribe)
+	logBoolPtr("AutoSubscribeDataTrack", pi.AutoSubscribeDataTrack)
 	e.AddObject("Client", logger.Proto(utils.ClientInfoWithoutAddress(pi.Client)))
 	e.AddObject("Grants", pi.Grants)
 	e.AddString("Region", pi.Region)
@@ -217,6 +230,10 @@ func (pi *ParticipantInit) MarshalLogObject(e zapcore.ObjectEncoder) error {
 	logBoolPtr("SubscriberAllowPause", pi.SubscriberAllowPause)
 	logBoolPtr("DisableICELite", &pi.DisableICELite)
 	e.AddObject("CreateRoom", logger.Proto(pi.CreateRoom))
+	e.AddArray("AddTrackRequests", logger.ProtoSlice(pi.AddTrackRequests))
+	e.AddObject("PublisherOffer", logger.Proto(pi.PublisherOffer))
+	e.AddObject("SyncState", logger.Proto(pi.SyncState))
+	logBoolPtr("UseSinglePeerConnection", &pi.UseSinglePeerConnection)
 	return nil
 }

@@ -227,20 +244,27 @@ func (pi *ParticipantInit) ToStartSession(roomName livekit.RoomName, connectionI
 	}

 	ss := &livekit.StartSession{
-		RoomName: string(roomName),
-		Identity: string(pi.Identity),
-		Name:     string(pi.Name),
-		// connection id is to allow the RTC node to identify where to route the message back to
-		ConnectionId:    string(connectionID),
-		Reconnect:       pi.Reconnect,
-		ReconnectReason: pi.ReconnectReason,
-		AutoSubscribe:   pi.AutoSubscribe,
-		Client:          pi.Client,
-		GrantsJson:      string(claims),
-		AdaptiveStream:  pi.AdaptiveStream,
-		ParticipantId:   string(pi.ID),
-		DisableIceLite:  pi.DisableICELite,
-		CreateRoom:      pi.CreateRoom,
+		RoomName:                string(roomName),
+		Identity:                string(pi.Identity),
+		Name:                    string(pi.Name),
+		ConnectionId:            string(connectionID),
+		Reconnect:               pi.Reconnect,
+		ReconnectReason:         pi.ReconnectReason,
+		AutoSubscribe:           pi.AutoSubscribe,
+		Client:                  pi.Client,
+		GrantsJson:              string(claims),
+		AdaptiveStream:          pi.AdaptiveStream,
+		ParticipantId:           string(pi.ID),
+		DisableIceLite:          pi.DisableICELite,
+		CreateRoom:              pi.CreateRoom,
+		AddTrackRequests:        pi.AddTrackRequests,
+		PublisherOffer:          pi.PublisherOffer,
+		SyncState:               pi.SyncState,
+		UseSinglePeerConnection: pi.UseSinglePeerConnection,
+	}
+	if pi.AutoSubscribeDataTrack != nil {
+		autoSubscribeDataTrack := *pi.AutoSubscribeDataTrack
+		ss.AutoSubscribeDataTrack = &autoSubscribeDataTrack
 	}
 	if pi.SubscriberAllowPause != nil {
 		subscriberAllowPause := *pi.SubscriberAllowPause
@@ -257,18 +281,26 @@ func ParticipantInitFromStartSession(ss *livekit.StartSession, region string) (*
 	}

 	pi := &ParticipantInit{
-		Identity:        livekit.ParticipantIdentity(ss.Identity),
-		Name:            livekit.ParticipantName(ss.Name),
-		Reconnect:       ss.Reconnect,
-		ReconnectReason: ss.ReconnectReason,
-		Client:          ss.Client,
-		AutoSubscribe:   ss.AutoSubscribe,
-		Grants:          claims,
-		Region:          region,
-		AdaptiveStream:  ss.AdaptiveStream,
-		ID:              livekit.ParticipantID(ss.ParticipantId),
-		DisableICELite:  ss.DisableIceLite,
-		CreateRoom:      ss.CreateRoom,
+		Identity:                livekit.ParticipantIdentity(ss.Identity),
+		Name:                    livekit.ParticipantName(ss.Name),
+		Reconnect:               ss.Reconnect,
+		ReconnectReason:         ss.ReconnectReason,
+		Client:                  ss.Client,
+		AutoSubscribe:           ss.AutoSubscribe,
+		Grants:                  claims,
+		Region:                  region,
+		AdaptiveStream:          ss.AdaptiveStream,
+		ID:                      livekit.ParticipantID(ss.ParticipantId),
+		DisableICELite:          ss.DisableIceLite,
+		CreateRoom:              ss.CreateRoom,
+		AddTrackRequests:        ss.AddTrackRequests,
+		PublisherOffer:          ss.PublisherOffer,
+		SyncState:               ss.SyncState,
+		UseSinglePeerConnection: ss.UseSinglePeerConnection,
+	}
+	if ss.AutoSubscribeDataTrack != nil {
+		autoSubscribeDataTrack := *ss.AutoSubscribeDataTrack
+		pi.AutoSubscribeDataTrack = &autoSubscribeDataTrack
 	}
 	if ss.SubscriberAllowPause != nil {
 		subscriberAllowPause := *ss.SubscriberAllowPause
@@ -16,11 +16,11 @@ package routing

 import (
 	"context"
-	"sync"
 	"time"

 	"go.uber.org/atomic"

+	"github.com/livekit/livekit-server/pkg/config"
 	"github.com/livekit/protocol/livekit"
 	"github.com/livekit/protocol/logger"
 )
@@ -32,8 +32,8 @@ type LocalRouter struct {
 	currentNode       LocalNode
 	signalClient      SignalClient
 	roomManagerClient RoomManagerClient
+	nodeStatsConfig   config.NodeStatsConfig

-	lock sync.RWMutex
 	// channels for each participant
 	requestChannels  map[string]*MessageChannel
 	responseChannels map[string]*MessageChannel
@@ -44,11 +44,13 @@ func NewLocalRouter(
 	currentNode LocalNode,
 	signalClient SignalClient,
 	roomManagerClient RoomManagerClient,
+	nodeStatsConfig config.NodeStatsConfig,
 ) *LocalRouter {
 	return &LocalRouter{
 		currentNode:       currentNode,
 		signalClient:      signalClient,
 		roomManagerClient: roomManagerClient,
+		nodeStatsConfig:   nodeStatsConfig,
 		requestChannels:   make(map[string]*MessageChannel),
 		responseChannels:  make(map[string]*MessageChannel),
 	}
@@ -106,7 +108,8 @@ func (r *LocalRouter) StartParticipantSignal(ctx context.Context, roomName livek
 func (r *LocalRouter) StartParticipantSignalWithNodeID(ctx context.Context, roomName livekit.RoomName, pi ParticipantInit, nodeID livekit.NodeID) (res StartParticipantSignalResults, err error) {
 	connectionID, reqSink, resSource, err := r.signalClient.StartParticipantSignal(ctx, roomName, pi, nodeID)
 	if err != nil {
-		logger.Errorw("could not handle new participant", err,
+		logger.Errorw(
+			"could not handle new participant", err,
 			"room", roomName,
 			"participant", pi.Identity,
 			"connID", connectionID,
@@ -146,8 +149,7 @@ func (r *LocalRouter) statsWorker() {
 		if !r.isStarted.Load() {
 			return
 		}
-		// update every 10 seconds
-		<-time.After(statsUpdateInterval)
+		<-time.After(r.nodeStatsConfig.StatsUpdateInterval)
 		r.currentNode.UpdateNodeStats()
 	}
 }
@@ -38,7 +38,7 @@ func TestMessageChannel_WriteMessageClosed(t *testing.T) {
 	wg.Add(1)
 	go func() {
 		defer wg.Done()
-		for i := 0; i < 100; i++ {
+		for range 100 {
 			_ = m.WriteMessage(&livekit.SignalRequest{})
 		}
 	}()
@@ -20,12 +20,10 @@ import (
 	"time"

 	"github.com/livekit/protocol/livekit"
-	"github.com/livekit/protocol/logger"
 	"github.com/livekit/protocol/utils"
 	"github.com/livekit/protocol/utils/guid"

 	"github.com/livekit/livekit-server/pkg/config"
-	"github.com/livekit/livekit-server/pkg/telemetry/prometheus"
 )

 type LocalNode interface {
@@ -45,30 +43,35 @@ type LocalNodeImpl struct {
 	lock sync.RWMutex
 	node *livekit.Node

-	// previous stats for computing averages
-	prevStats *livekit.NodeStats
+	nodeStats *NodeStats
 }

 func NewLocalNode(conf *config.Config) (*LocalNodeImpl, error) {
 	nodeID := guid.New(utils.NodePrefix)
-	if conf != nil && conf.RTC.NodeIP == "" {
+	if conf != nil && conf.RTC.NodeIP.IsEmpty() {
 		return nil, ErrIPNotSet
 	}
+	nowUnix := time.Now().Unix()
 	l := &LocalNodeImpl{
 		node: &livekit.Node{
 			Id:      nodeID,
 			NumCpus: uint32(runtime.NumCPU()),
 			State:   livekit.NodeState_SERVING,
 			Stats: &livekit.NodeStats{
-				StartedAt: time.Now().Unix(),
-				UpdatedAt: time.Now().Unix(),
+				StartedAt: nowUnix,
+				UpdatedAt: nowUnix,
 			},
 		},
 	}
+	var nsc *config.NodeStatsConfig
 	if conf != nil {
-		l.node.Ip = conf.RTC.NodeIP
+		l.node.Ip = conf.RTC.NodeIP.PrimaryIP()
 		l.node.Region = conf.Region
+
+		nsc = &conf.NodeStats
 	}
+	l.nodeStats = NewNodeStats(nsc, nowUnix)
+
 	return l, nil
 }

@@ -138,18 +141,12 @@ func (l *LocalNodeImpl) UpdateNodeStats() bool {
 	l.lock.Lock()
 	defer l.lock.Unlock()

-	if l.prevStats == nil {
-		l.prevStats = l.node.Stats
-	}
-	updated, computedAvg, err := prometheus.GetUpdatedNodeStats(l.node.Stats, l.prevStats)
+	stats, err := l.nodeStats.UpdateAndGetNodeStats()
 	if err != nil {
-		logger.Errorw("could not update node stats", err)
 		return false
 	}
-	l.node.Stats = updated
-	if computedAvg {
-		l.prevStats = updated
-	}
+
+	l.node.Stats = stats
 	return true
 }

@@ -0,0 +1,82 @@
+// Copyright 2023 LiveKit, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package routing
+
+import (
+	"sync"
+	"time"
+
+	"github.com/livekit/protocol/livekit"
+	"github.com/livekit/protocol/logger"
+
+	"github.com/livekit/livekit-server/pkg/config"
+	"github.com/livekit/livekit-server/pkg/telemetry/prometheus"
+)
+
+type NodeStats struct {
+	config    config.NodeStatsConfig
+	startedAt int64
+
+	lock                 sync.Mutex
+	statsHistory         []*livekit.NodeStats
+	statsHistoryWritePtr int
+}
+
+func NewNodeStats(conf *config.NodeStatsConfig, startedAt int64) *NodeStats {
+	n := &NodeStats{
+		startedAt: startedAt,
+	}
+	n.UpdateConfig(conf)
+	return n
+}
+
+func (n *NodeStats) UpdateConfig(conf *config.NodeStatsConfig) {
+	n.lock.Lock()
+	defer n.lock.Unlock()
+
+	if conf == nil {
+		conf = &config.DefaultNodeStatsConfig
+	}
+	n.config = *conf
+
+	// set up stats history to be able to measure different rate windows
+	var maxInterval time.Duration
+	for _, rateInterval := range conf.StatsRateMeasurementIntervals {
+		if rateInterval > maxInterval {
+			maxInterval = rateInterval
+		}
+	}
+	n.statsHistory = make([]*livekit.NodeStats, (maxInterval+conf.StatsUpdateInterval-1)/conf.StatsUpdateInterval)
+	n.statsHistoryWritePtr = 0
+}
+
+func (n *NodeStats) UpdateAndGetNodeStats() (*livekit.NodeStats, error) {
+	n.lock.Lock()
+	defer n.lock.Unlock()
+
+	stats, err := prometheus.GetNodeStats(
+		n.startedAt,
+		append(n.statsHistory[n.statsHistoryWritePtr:], n.statsHistory[0:n.statsHistoryWritePtr]...),
+		n.config.StatsRateMeasurementIntervals,
+	)
+	if err != nil {
+		logger.Errorw("could not update node stats", err)
+		return nil, err
+	}
+
+	n.statsHistory[n.statsHistoryWritePtr] = stats
+	n.statsHistoryWritePtr = (n.statsHistoryWritePtr + 1) % len(n.statsHistory)
+	return stats, nil
+}
@@ -33,11 +33,6 @@ import (
 )

 const (
-	// expire participant mappings after a day
-	participantMappingTTL = 24 * time.Hour
-	statsUpdateInterval   = 2 * time.Second
-	statsMaxDelaySeconds  = float64(30)
-
 	// hash of node_id => Node proto
 	NodesKey = "nodes"

@@ -209,11 +204,11 @@ func (r *RedisRouter) statsWorker() {
 	for r.ctx.Err() == nil {
 		// update periodically
 		select {
-		case <-time.After(statsUpdateInterval):
+		case <-time.After(r.nodeStatsConfig.StatsUpdateInterval):
 			r.kps.PublishPing(r.ctx, r.currentNode.NodeID(), &rpc.KeepalivePing{Timestamp: time.Now().Unix()})

 			delaySeconds := r.currentNode.SecondsSinceNodeStatsUpdate()
-			if delaySeconds > statsMaxDelaySeconds {
+			if delaySeconds > r.nodeStatsConfig.StatsMaxDelay.Seconds() {
 				if !goroutineDumped {
 					goroutineDumped = true
 					buf := bytes.NewBuffer(nil)
@@ -240,7 +235,7 @@ func (r *RedisRouter) keepaliveWorker(startedChan chan error) {
 	close(startedChan)

 	for ping := range pings.Channel() {
-		if time.Since(time.Unix(ping.Timestamp, 0)) > statsUpdateInterval {
+		if time.Since(time.Unix(ping.Timestamp, 0)) > r.nodeStatsConfig.StatsUpdateInterval {
 			logger.Infow("keep alive too old, skipping", "timestamp", ping.Timestamp)
 			continue
 		}
@@ -243,14 +243,6 @@ func (fake *FakeMessageSink) WriteMessageReturnsOnCall(i int, result1 error) {
 func (fake *FakeMessageSink) Invocations() map[string][][]interface{} {
 	fake.invocationsMutex.RLock()
 	defer fake.invocationsMutex.RUnlock()
-	fake.closeMutex.RLock()
-	defer fake.closeMutex.RUnlock()
-	fake.connectionIDMutex.RLock()
-	defer fake.connectionIDMutex.RUnlock()
-	fake.isClosedMutex.RLock()
-	defer fake.isClosedMutex.RUnlock()
-	fake.writeMessageMutex.RLock()
-	defer fake.writeMessageMutex.RUnlock()
 	copiedInvocations := map[string][][]interface{}{}
 	for key, value := range fake.invocations {
 		copiedInvocations[key] = value
@@ -234,14 +234,6 @@ func (fake *FakeMessageSource) ReadChanReturnsOnCall(i int, result1 <-chan proto
 func (fake *FakeMessageSource) Invocations() map[string][][]interface{} {
 	fake.invocationsMutex.RLock()
 	defer fake.invocationsMutex.RUnlock()
-	fake.closeMutex.RLock()
-	defer fake.closeMutex.RUnlock()
-	fake.connectionIDMutex.RLock()
-	defer fake.connectionIDMutex.RUnlock()
-	fake.isClosedMutex.RLock()
-	defer fake.isClosedMutex.RUnlock()
-	fake.readChanMutex.RLock()
-	defer fake.readChanMutex.RUnlock()
 	copiedInvocations := map[string][][]interface{}{}
 	for key, value := range fake.invocations {
 		copiedInvocations[key] = value
@@ -129,10 +129,6 @@ func (fake *FakeRoomManagerClient) CreateRoomReturnsOnCall(i int, result1 *livek
 func (fake *FakeRoomManagerClient) Invocations() map[string][][]interface{} {
 	fake.invocationsMutex.RLock()
 	defer fake.invocationsMutex.RUnlock()
-	fake.closeMutex.RLock()
-	defer fake.closeMutex.RUnlock()
-	fake.createRoomMutex.RLock()
-	defer fake.createRoomMutex.RUnlock()
 	copiedInvocations := map[string][][]interface{}{}
 	for key, value := range fake.invocations {
 		copiedInvocations[key] = value
@@ -845,32 +845,6 @@ func (fake *FakeRouter) UnregisterNodeReturnsOnCall(i int, result1 error) {
 func (fake *FakeRouter) Invocations() map[string][][]interface{} {
 	fake.invocationsMutex.RLock()
 	defer fake.invocationsMutex.RUnlock()
-	fake.clearRoomStateMutex.RLock()
-	defer fake.clearRoomStateMutex.RUnlock()
-	fake.createRoomMutex.RLock()
-	defer fake.createRoomMutex.RUnlock()
-	fake.drainMutex.RLock()
-	defer fake.drainMutex.RUnlock()
-	fake.getNodeForRoomMutex.RLock()
-	defer fake.getNodeForRoomMutex.RUnlock()
-	fake.getRegionMutex.RLock()
-	defer fake.getRegionMutex.RUnlock()
-	fake.listNodesMutex.RLock()
-	defer fake.listNodesMutex.RUnlock()
-	fake.registerNodeMutex.RLock()
-	defer fake.registerNodeMutex.RUnlock()
-	fake.removeDeadNodesMutex.RLock()
-	defer fake.removeDeadNodesMutex.RUnlock()
-	fake.setNodeForRoomMutex.RLock()
-	defer fake.setNodeForRoomMutex.RUnlock()
-	fake.startMutex.RLock()
-	defer fake.startMutex.RUnlock()
-	fake.startParticipantSignalMutex.RLock()
-	defer fake.startParticipantSignalMutex.RUnlock()
-	fake.stopMutex.RLock()
-	defer fake.stopMutex.RUnlock()
-	fake.unregisterNodeMutex.RLock()
-	defer fake.unregisterNodeMutex.RUnlock()
 	copiedInvocations := map[string][][]interface{}{}
 	for key, value := range fake.invocations {
 		copiedInvocations[key] = value
@@ -173,10 +173,6 @@ func (fake *FakeSignalClient) StartParticipantSignalReturnsOnCall(i int, result1
 func (fake *FakeSignalClient) Invocations() map[string][][]interface{} {
 	fake.invocationsMutex.RLock()
 	defer fake.invocationsMutex.RUnlock()
-	fake.activeCountMutex.RLock()
-	defer fake.activeCountMutex.RUnlock()
-	fake.startParticipantSignalMutex.RLock()
-	defer fake.startParticipantSignalMutex.RUnlock()
 	copiedInvocations := map[string][][]interface{}{}
 	for key, value := range fake.invocations {
 		copiedInvocations[key] = value
@@ -20,7 +20,8 @@ import (

 // AnySelector selects any available node with no limitations
 type AnySelector struct {
-	SortBy string
+	SortBy    string
+	Algorithm string
 }

 func (s *AnySelector) SelectNode(nodes []*livekit.Node) (*livekit.Node, error) {
@@ -29,5 +30,5 @@ func (s *AnySelector) SelectNode(nodes []*livekit.Node) (*livekit.Node, error) {
 		return nil, ErrNoAvailableNodes
 	}

-	return SelectSortedNode(nodes, s.SortBy)
+	return SelectSortedNode(nodes, s.SortBy, s.Algorithm)
 }
@@ -0,0 +1,287 @@
+// Copyright 2023 LiveKit, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package selector
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/livekit/protocol/livekit"
+)
+
+func createTestNode(id string, cpuLoad float32, numRooms int32, numClients int32, state livekit.NodeState) *livekit.Node {
+	return &livekit.Node{
+		Id:    id,
+		State: state,
+		Stats: &livekit.NodeStats{
+			UpdatedAt:       time.Now().Unix() - 1, // Recent update to be considered available
+			CpuLoad:         cpuLoad,
+			NumRooms:        numRooms,
+			NumClients:      numClients,
+			NumCpus:         4,
+			LoadAvgLast1Min: cpuLoad * 4, // Simulate system load
+		},
+	}
+}
+
+func TestAnySelector_SelectNode_TwoChoice(t *testing.T) {
+	tests := []struct {
+		name        string
+		sortBy      string
+		algorithm   string
+		nodes       []*livekit.Node
+		wantErr     string
+		expected    string
+		notExpected string
+	}{
+		{
+			name:      "successful selection with cpuload sorting",
+			sortBy:    "cpuload",
+			algorithm: "twochoice",
+			nodes: []*livekit.Node{
+				createTestNode("node1", 0.8, 5, 10, livekit.NodeState_SERVING),
+				createTestNode("node2", 0.3, 2, 5, livekit.NodeState_SERVING),
+				createTestNode("node3", 0.6, 3, 8, livekit.NodeState_SERVING),
+				createTestNode("node4", 0.9, 6, 12, livekit.NodeState_SERVING),
+			},
+			wantErr:     "",
+			expected:    "",      // Not determinstic selection, so no specific expected node
+			notExpected: "node4", // Node with highest load should not be selected
+		},
+		{
+			name:      "successful selection with rooms sorting",
+			sortBy:    "rooms",
+			algorithm: "twochoice",
+			nodes: []*livekit.Node{
+				createTestNode("node1", 0.5, 8, 15, livekit.NodeState_SERVING),
+				createTestNode("node2", 0.4, 2, 5, livekit.NodeState_SERVING),
+				createTestNode("node3", 0.6, 12, 20, livekit.NodeState_SERVING),
+			},
+			wantErr:     "",
+			expected:    "",      // Not determinstic selection, so no specific expected node
+			notExpected: "node3", // Node with highest room count should not be selected
+		},
+		{
+			name:      "successful selection with clients sorting",
+			sortBy:    "clients",
+			algorithm: "twochoice",
+			nodes: []*livekit.Node{
+				createTestNode("node1", 0.5, 3, 25, livekit.NodeState_SERVING),
+				createTestNode("node2", 0.4, 2, 5, livekit.NodeState_SERVING),
+				createTestNode("node3", 0.6, 4, 30, livekit.NodeState_SERVING),
+			},
+			wantErr:     "",
+			expected:    "",      // Not determinstic selection, so no specific expected node
+			notExpected: "node3", // Node with highest clients should not be selected
+		},
+		{
+			name:      "empty nodes list",
+			sortBy:    "cpuload",
+			algorithm: "twochoice",
+			nodes:     []*livekit.Node{},
+			wantErr:   "could not find any available nodes",
+		},
+		{
+			name:      "no available nodes - all unavailable",
+			sortBy:    "cpuload",
+			algorithm: "twochoice",
+			nodes: []*livekit.Node{
+				{
+					Id:    "node1",
+					State: livekit.NodeState_SERVING,
+					Stats: &livekit.NodeStats{
+						UpdatedAt: time.Now().Unix() - 10, // Too old
+						CpuLoad:   0.3,
+					},
+				},
+			},
+			wantErr: "could not find any available nodes",
+		},
+		{
+			name:      "no available nodes - not serving",
+			sortBy:    "cpuload",
+			algorithm: "twochoice",
+			nodes: []*livekit.Node{
+				{
+					Id:    "node1",
+					State: livekit.NodeState_SHUTTING_DOWN,
+					Stats: &livekit.NodeStats{
+						UpdatedAt: time.Now().Unix() - 1,
+						CpuLoad:   0.3,
+					},
+				},
+			},
+			wantErr: "could not find any available nodes",
+		},
+		{
+			name:      "single available node",
+			sortBy:    "cpuload",
+			algorithm: "twochoice",
+			nodes: []*livekit.Node{
+				createTestNode("node1", 0.5, 3, 10, livekit.NodeState_SERVING),
+			},
+			wantErr:     "",
+			expected:    "node1", // Should select the only available node
+			notExpected: "",      // No other nodes to compare against
+		},
+		{
+			name:      "two available nodes",
+			sortBy:    "cpuload",
+			algorithm: "twochoice",
+			nodes: []*livekit.Node{
+				createTestNode("node1", 0.8, 5, 15, livekit.NodeState_SERVING),
+				createTestNode("node2", 0.3, 2, 5, livekit.NodeState_SERVING),
+			},
+			wantErr:     "",
+			expected:    "node2", // Should select the node with lower load
+			notExpected: "node1", // Should not select the node with higher load
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			selector := &AnySelector{
+				SortBy:    tt.sortBy,
+				Algorithm: tt.algorithm,
+			}
+
+			node, err := selector.SelectNode(tt.nodes)
+
+			if tt.wantErr != "" {
+				require.Error(t, err)
+				require.Contains(t, err.Error(), tt.wantErr)
+				require.Nil(t, node)
+			} else {
+				require.NoError(t, err)
+				require.NotNil(t, node)
+				require.NotEmpty(t, node.Id)
+
+				// Verify the selected node is one of the available nodes
+				found := false
+				availableNodes := GetAvailableNodes(tt.nodes)
+				for _, availableNode := range availableNodes {
+					if availableNode.Id == node.Id {
+						found = true
+						break
+					}
+				}
+				require.True(t, found, "Selected node should be one of the available nodes")
+
+				if tt.expected != "" {
+					require.Equal(t, tt.expected, node.Id, "Selected node should match expected")
+				}
+				if tt.notExpected != "" {
+					require.NotEqual(t, tt.notExpected, node.Id, "Selected node should not match not expected")
+				}
+			}
+		})
+	}
+}
+
+func TestAnySelector_SelectNode_TwoChoice_Probabilistic_Behavior(t *testing.T) {
+	// Test that two-choice algorithm favors nodes with lower metrics
+	// This test runs multiple iterations to increase confidence in the probabilistic behavior
+	selector := &AnySelector{
+		SortBy:    "cpuload",
+		Algorithm: "twochoice",
+	}
+
+	// Create nodes where node2 has significantly lower CPU load
+	nodes := []*livekit.Node{
+		createTestNode("node1", 0.95, 10, 20, livekit.NodeState_SERVING), // Very high load
+		createTestNode("node2", 0.1, 1, 2, livekit.NodeState_SERVING),    // Low load
+		createTestNode("node3", 0.5, 9, 18, livekit.NodeState_SERVING),   // Medium load
+		createTestNode("node4", 0.85, 8, 16, livekit.NodeState_SERVING),  // High load
+	}
+
+	// Run multiple selections and count how often the low-load node is selected
+	iterations := 1000
+	lowLoadSelections := 0
+	higestLoadSelections := 0
+
+	for range iterations {
+		node, err := selector.SelectNode(nodes)
+		require.NoError(t, err)
+		require.NotNil(t, node)
+
+		if node.Id == "node2" {
+			lowLoadSelections++
+		}
+		if node.Id == "node1" {
+			higestLoadSelections++
+		}
+	}
+
+	// The low-load node should be selected more often than pure random (25%)
+	// Due to the two-choice algorithm favoring the better node
+	selectionRate := float64(lowLoadSelections) / float64(iterations)
+	require.Greater(t, selectionRate, 0.4, "Two-choice algorithm should favor the low-load node more than random selection")
+	require.Equal(t, higestLoadSelections, 0, "Two-choice algorithm should never favor the highest load node")
+}
+
+func TestAnySelector_SelectNode_InvalidParameters(t *testing.T) {
+	nodes := []*livekit.Node{
+		createTestNode("node1", 0.5, 3, 10, livekit.NodeState_SERVING),
+	}
+
+	tests := []struct {
+		name      string
+		sortBy    string
+		algorithm string
+		wantErr   string
+	}{
+		{
+			name:      "empty sortBy",
+			sortBy:    "",
+			algorithm: "twochoice",
+			wantErr:   "sort by option cannot be blank",
+		},
+		{
+			name:      "empty algorithm",
+			sortBy:    "cpuload",
+			algorithm: "",
+			wantErr:   "node selector algorithm option cannot be blank",
+		},
+		{
+			name:      "unknown sortBy",
+			sortBy:    "invalid",
+			algorithm: "twochoice",
+			wantErr:   "unknown sort by option",
+		},
+		{
+			name:      "unknown algorithm",
+			sortBy:    "cpuload",
+			algorithm: "invalid",
+			wantErr:   "unknown node selector algorithm option",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			selector := &AnySelector{
+				SortBy:    tt.sortBy,
+				Algorithm: tt.algorithm,
+			}
+
+			node, err := selector.SelectNode(nodes)
+
+			require.Error(t, err)
+			require.Contains(t, err.Error(), tt.wantErr)
+			require.Nil(t, node)
+		})
+	}
+}
@@ -23,6 +23,7 @@ import (
 type CPULoadSelector struct {
 	CPULoadLimit float32
 	SortBy       string
+	Algorithm    string
 }

 func (s *CPULoadSelector) filterNodes(nodes []*livekit.Node) ([]*livekit.Node, error) {
@@ -50,5 +51,5 @@ func (s *CPULoadSelector) SelectNode(nodes []*livekit.Node) (*livekit.Node, erro
 		return nil, err
 	}

-	return SelectSortedNode(nodes, s.SortBy)
+	return SelectSortedNode(nodes, s.SortBy, s.Algorithm)
 }
@@ -25,7 +25,7 @@ import (
 )

 func TestCPULoadSelector_SelectNode(t *testing.T) {
-	sel := selector.CPULoadSelector{CPULoadLimit: 0.8, SortBy: "random"}
+	sel := selector.CPULoadSelector{CPULoadLimit: 0.8, SortBy: "random", Algorithm: "lowest"}

 	var nodes []*livekit.Node
 	_, err := sel.SelectNode(nodes)
@@ -39,7 +39,7 @@ func TestCPULoadSelector_SelectNode(t *testing.T) {

 	// Select a node with low load when available
 	nodes = []*livekit.Node{nodeLoadLow, nodeLoadHigh}
-	for i := 0; i < 5; i++ {
+	for range 5 {
 		node, err := sel.SelectNode(nodes)
 		if err != nil {
 			t.Error(err)
@@ -21,5 +21,7 @@ var (
 	ErrCurrentRegionNotSet        = errors.New("current region cannot be blank")
 	ErrCurrentRegionUnknownLatLon = errors.New("unknown lat and lon for the current region")
 	ErrSortByNotSet               = errors.New("sort by option cannot be blank")
+	ErrAlgorithmNotSet            = errors.New("node selector algorithm option cannot be blank")
 	ErrSortByUnknown              = errors.New("unknown sort by option")
+	ErrAlgorithmUnknown           = errors.New("unknown node selector algorithm option")
 )
@@ -37,19 +37,21 @@ func CreateNodeSelector(conf *config.Config) (NodeSelector, error) {
 	}
 	switch kind {
 	case "any":
-		return &AnySelector{conf.NodeSelector.SortBy}, nil
+		return &AnySelector{conf.NodeSelector.SortBy, conf.NodeSelector.Algorithm}, nil
 	case "cpuload":
 		return &CPULoadSelector{
 			CPULoadLimit: conf.NodeSelector.CPULoadLimit,
-			SortBy: conf.NodeSelector.SortBy,
+			SortBy:       conf.NodeSelector.SortBy,
+			Algorithm:    conf.NodeSelector.Algorithm,
 		}, nil
 	case "sysload":
 		return &SystemLoadSelector{
 			SysloadLimit: conf.NodeSelector.SysloadLimit,
-			SortBy: conf.NodeSelector.SortBy,
+			SortBy:       conf.NodeSelector.SortBy,
+			Algorithm:    conf.NodeSelector.Algorithm,
 		}, nil
 	case "regionaware":
-		s, err := NewRegionAwareSelector(conf.Region, conf.NodeSelector.Regions, conf.NodeSelector.SortBy)
+		s, err := NewRegionAwareSelector(conf.Region, conf.NodeSelector.Regions, conf.NodeSelector.SortBy, conf.NodeSelector.Algorithm)
 		if err != nil {
 			return nil, err
 		}
@@ -57,7 +59,7 @@ func CreateNodeSelector(conf *config.Config) (NodeSelector, error) {
 		return s, nil
 	case "random":
 		logger.Warnw("random node selector is deprecated, please switch to \"any\" or another selector", nil)
-		return &AnySelector{conf.NodeSelector.SortBy}, nil
+		return &AnySelector{conf.NodeSelector.SortBy, conf.NodeSelector.Algorithm}, nil
 	default:
 		return nil, ErrUnsupportedSelector
 	}
@@ -29,9 +29,10 @@ type RegionAwareSelector struct {
 	regionDistances map[string]float64
 	regions         []config.RegionConfig
 	SortBy          string
+	Algorithm       string
 }

-func NewRegionAwareSelector(currentRegion string, regions []config.RegionConfig, sortBy string) (*RegionAwareSelector, error) {
+func NewRegionAwareSelector(currentRegion string, regions []config.RegionConfig, sortBy string, algorithm string) (*RegionAwareSelector, error) {
 	if currentRegion == "" {
 		return nil, ErrCurrentRegionNotSet
 	}
@@ -41,6 +42,7 @@ func NewRegionAwareSelector(currentRegion string, regions []config.RegionConfig,
 		regionDistances: make(map[string]float64),
 		regions:         regions,
 		SortBy:          sortBy,
+		Algorithm:       algorithm,
 	}

 	var currentRC *config.RegionConfig
@@ -94,7 +96,7 @@ func (s *RegionAwareSelector) SelectNode(nodes []*livekit.Node) (*livekit.Node,
 		nodes = nearestNodes
 	}

-	return SelectSortedNode(nodes, s.SortBy)
+	return SelectSortedNode(nodes, s.SortBy, s.Algorithm)
 }

 // haversine(θ) function
@@ -34,6 +34,7 @@ const (
 	regionEast    = "us-east"
 	regionSeattle = "seattle"
 	sortBy        = "random"
+	algorithm     = "lowest"
 )

 func TestRegionAwareRouting(t *testing.T) {
@@ -58,7 +59,7 @@ func TestRegionAwareRouting(t *testing.T) {
 		nodes := []*livekit.Node{
 			newTestNodeInRegion("", false),
 		}
-		s, err := selector.NewRegionAwareSelector(regionEast, nil, sortBy)
+		s, err := selector.NewRegionAwareSelector(regionEast, nil, sortBy, algorithm)
 		require.NoError(t, err)

 		node, err := s.SelectNode(nodes)
@@ -74,7 +75,7 @@ func TestRegionAwareRouting(t *testing.T) {
 			expectedNode,
 			newTestNodeInRegion(regionEast, false),
 		}
-		s, err := selector.NewRegionAwareSelector(regionEast, rc, sortBy)
+		s, err := selector.NewRegionAwareSelector(regionEast, rc, sortBy, algorithm)
 		require.NoError(t, err)
 		s.SysloadLimit = loadLimit

@@ -91,7 +92,7 @@ func TestRegionAwareRouting(t *testing.T) {
 			newTestNodeInRegion(regionWest, true),
 			newTestNodeInRegion(regionEast, false),
 		}
-		s, err := selector.NewRegionAwareSelector(regionEast, rc, sortBy)
+		s, err := selector.NewRegionAwareSelector(regionEast, rc, sortBy, algorithm)
 		require.NoError(t, err)
 		s.SysloadLimit = loadLimit

@@ -107,7 +108,7 @@ func TestRegionAwareRouting(t *testing.T) {
 			expectedNode,
 			newTestNodeInRegion(regionEast, true),
 		}
-		s, err := selector.NewRegionAwareSelector(regionSeattle, rc, sortBy)
+		s, err := selector.NewRegionAwareSelector(regionSeattle, rc, sortBy, algorithm)
 		require.NoError(t, err)
 		s.SysloadLimit = loadLimit

@@ -125,7 +126,7 @@ func TestRegionAwareRouting(t *testing.T) {
 			expectedNode,
 			expectedNode,
 		}
-		s, err := selector.NewRegionAwareSelector(regionSeattle, rc, sortBy)
+		s, err := selector.NewRegionAwareSelector(regionSeattle, rc, sortBy, algorithm)
 		require.NoError(t, err)
 		s.SysloadLimit = loadLimit

@@ -138,7 +139,7 @@ func TestRegionAwareRouting(t *testing.T) {
 		nodes := []*livekit.Node{
 			newTestNodeInRegion(regionWest, true),
 		}
-		s, err := selector.NewRegionAwareSelector(regionEast, rc, sortBy)
+		s, err := selector.NewRegionAwareSelector(regionEast, rc, sortBy, algorithm)
 		require.NoError(t, err)

 		node, err := s.SelectNode(nodes)
@@ -23,10 +23,10 @@ import (
 )

 func SortByTest(t *testing.T, sortBy string) {
-	sel := selector.SystemLoadSelector{SortBy: sortBy}
+	sel := selector.SystemLoadSelector{SortBy: sortBy, Algorithm: "lowest"}
 	nodes := []*livekit.Node{nodeLoadLow, nodeLoadMedium, nodeLoadHigh}

-	for i := 0; i < 5; i++ {
+	for range 5 {
 		node, err := sel.SelectNode(nodes)
 		if err != nil {
 			t.Error(err)
@@ -38,7 +38,7 @@ func SortByTest(t *testing.T, sortBy string) {
 }

 func TestSortByErrors(t *testing.T) {
-	sel := selector.SystemLoadSelector{}
+	sel := selector.SystemLoadSelector{Algorithm: "lowest"}
 	nodes := []*livekit.Node{nodeLoadLow, nodeLoadMedium, nodeLoadHigh}

 	// Test unset sort by option error
@@ -23,6 +23,7 @@ import (
 type SystemLoadSelector struct {
 	SysloadLimit float32
 	SortBy       string
+	Algorithm    string
 }

 func (s *SystemLoadSelector) filterNodes(nodes []*livekit.Node) ([]*livekit.Node, error) {
@@ -49,5 +50,5 @@ func (s *SystemLoadSelector) SelectNode(nodes []*livekit.Node) (*livekit.Node, e
 		return nil, err
 	}

-	return SelectSortedNode(nodes, s.SortBy)
+	return SelectSortedNode(nodes, s.SortBy, s.Algorithm)
 }
@@ -33,12 +33,16 @@ var (
 			NumCpus:         1,
 			CpuLoad:         0.1,
 			LoadAvgLast1Min: 0.0,
-			NumRooms: 1,
-			NumClients: 2,
-			NumTracksIn: 4,
-			NumTracksOut: 8,
-			BytesInPerSec: 1000,
-			BytesOutPerSec: 2000,
+			NumRooms:        1,
+			NumClients:      2,
+			NumTracksIn:     4,
+			NumTracksOut:    8,
+			Rates: []*livekit.NodeStatsRate{
+				{
+					BytesIn:  1000,
+					BytesOut: 2000,
+				},
+			},
 		},
 	}

@@ -49,12 +53,16 @@ var (
 			NumCpus:         1,
 			CpuLoad:         0.5,
 			LoadAvgLast1Min: 0.5,
-			NumRooms: 5,
-			NumClients: 10,
-			NumTracksIn: 20,
-			NumTracksOut: 200,
-			BytesInPerSec: 5000,
-			BytesOutPerSec: 10000,
+			NumRooms:        5,
+			NumClients:      10,
+			NumTracksIn:     20,
+			NumTracksOut:    200,
+			Rates: []*livekit.NodeStatsRate{
+				{
+					BytesIn:  5000,
+					BytesOut: 10000,
+				},
+			},
 		},
 	}

@@ -65,18 +73,22 @@ var (
 			NumCpus:         1,
 			CpuLoad:         0.99,
 			LoadAvgLast1Min: 2.0,
-			NumRooms: 10,
-			NumClients: 20,
-			NumTracksIn: 40,
-			NumTracksOut: 800,
-			BytesInPerSec: 10000,
-			BytesOutPerSec: 40000,
+			NumRooms:        10,
+			NumClients:      20,
+			NumTracksIn:     40,
+			NumTracksOut:    800,
+			Rates: []*livekit.NodeStatsRate{
+				{
+					BytesIn:  10000,
+					BytesOut: 40000,
+				},
+			},
 		},
 	}
 )

 func TestSystemLoadSelector_SelectNode(t *testing.T) {
-	sel := selector.SystemLoadSelector{SysloadLimit: 1.0, SortBy: "random"}
+	sel := selector.SystemLoadSelector{SysloadLimit: 1.0, SortBy: "random", Algorithm: "lowest"}

 	var nodes []*livekit.Node
 	_, err := sel.SelectNode(nodes)
@@ -90,7 +102,7 @@ func TestSystemLoadSelector_SelectNode(t *testing.T) {

 	// Select a node with low load when available
 	nodes = []*livekit.Node{nodeLoadLow, nodeLoadHigh}
-	for i := 0; i < 5; i++ {
+	for range 5 {
 		node, err := sel.SelectNode(nodes)
 		if err != nil {
 			t.Error(err)
@@ -15,7 +15,8 @@
 package selector

 import (
-	"sort"
+	"math/rand/v2"
+	"slices"
 	"time"

 	"github.com/thoas/go-funk"
@@ -23,6 +24,7 @@ import (
 	"github.com/livekit/protocol/livekit"

 	"github.com/livekit/livekit-server/pkg/config"
+	"github.com/livekit/livekit-server/pkg/utils"
 )

 const AvailableSeconds = 5
@@ -62,54 +64,116 @@ func LimitsReached(limitConfig config.LimitConfig, nodeStats *livekit.NodeStats)
 	if limitConfig.NumTracks > 0 && limitConfig.NumTracks <= nodeStats.NumTracksIn+nodeStats.NumTracksOut {
 		return true
 	}
-	if limitConfig.BytesPerSec > 0 && limitConfig.BytesPerSec <= nodeStats.BytesInPerSec+nodeStats.BytesOutPerSec {
+
+	rate := &livekit.NodeStatsRate{}
+	if len(nodeStats.Rates) > 0 {
+		rate = nodeStats.Rates[0]
+	}
+	if limitConfig.BytesPerSec > 0 && limitConfig.BytesPerSec <= rate.BytesIn+rate.BytesOut {
 		return true
 	}

 	return false
 }

-func SelectSortedNode(nodes []*livekit.Node, sortBy string) (*livekit.Node, error) {
+func SelectSortedNode(nodes []*livekit.Node, sortBy string, algorithm string) (*livekit.Node, error) {
 	if sortBy == "" {
 		return nil, ErrSortByNotSet
 	}
+	if algorithm == "" {
+		return nil, ErrAlgorithmNotSet
+	}

+	switch algorithm {
+	case "lowest": // examine all nodes and select the lowest based on sort criteria
+		return selectLowestSortedNode(nodes, sortBy)
+	case "twochoice": // randomly select two nodes and return the lowest based on sort criteria "Power of Two Random Choices"
+		return selectTwoChoiceSortedNode(nodes, sortBy)
+	default:
+		return nil, ErrAlgorithmUnknown
+	}
+}
+
+func selectTwoChoiceSortedNode(nodes []*livekit.Node, sortBy string) (*livekit.Node, error) {
+	if len(nodes) <= 2 {
+		return selectLowestSortedNode(nodes, sortBy)
+	}
+
+	// randomly select two nodes
+	node1, node2, err := selectTwoRandomNodes(nodes)
+	if err != nil {
+		return nil, err
+	}
+
+	// compare the two nodes based on the sort criteria
+	if node1 == nil || node2 == nil {
+		return nil, ErrNoAvailableNodes
+	}
+
+	selectedNode, err := selectLowestSortedNode([]*livekit.Node{node1, node2}, sortBy)
+	if err != nil {
+		return nil, err
+	}
+
+	return selectedNode, nil
+}
+
+func selectLowestSortedNode(nodes []*livekit.Node, sortBy string) (*livekit.Node, error) {
 	// Return a node based on what it should be sorted by for priority
 	switch sortBy {
 	case "random":
 		idx := funk.RandomInt(0, len(nodes))
 		return nodes[idx], nil
 	case "sysload":
-		sort.Slice(nodes, func(i, j int) bool {
-			return GetNodeSysload(nodes[i]) < GetNodeSysload(nodes[j])
+		slices.SortFunc(nodes, func(a, b *livekit.Node) int {
+			return utils.Signum(GetNodeSysload(a) - GetNodeSysload(b))
 		})
 		return nodes[0], nil
 	case "cpuload":
-		sort.Slice(nodes, func(i, j int) bool {
-			return nodes[i].Stats.CpuLoad < nodes[j].Stats.CpuLoad
+		slices.SortFunc(nodes, func(a, b *livekit.Node) int {
+			return utils.Signum(a.Stats.CpuLoad - b.Stats.CpuLoad)
 		})
 		return nodes[0], nil
 	case "rooms":
-		sort.Slice(nodes, func(i, j int) bool {
-			return nodes[i].Stats.NumRooms < nodes[j].Stats.NumRooms
+		slices.SortFunc(nodes, func(a, b *livekit.Node) int {
+			return utils.Signum(a.Stats.NumRooms - b.Stats.NumRooms)
 		})
 		return nodes[0], nil
 	case "clients":
-		sort.Slice(nodes, func(i, j int) bool {
-			return nodes[i].Stats.NumClients < nodes[j].Stats.NumClients
+		slices.SortFunc(nodes, func(a, b *livekit.Node) int {
+			return utils.Signum(a.Stats.NumClients - b.Stats.NumClients)
 		})
 		return nodes[0], nil
 	case "tracks":
-		sort.Slice(nodes, func(i, j int) bool {
-			return nodes[i].Stats.NumTracksIn+nodes[i].Stats.NumTracksOut < nodes[j].Stats.NumTracksIn+nodes[j].Stats.NumTracksOut
+		slices.SortFunc(nodes, func(a, b *livekit.Node) int {
+			return utils.Signum((a.Stats.NumTracksIn + a.Stats.NumTracksOut) - (b.Stats.NumTracksIn + b.Stats.NumTracksOut))
 		})
 		return nodes[0], nil
 	case "bytespersec":
-		sort.Slice(nodes, func(i, j int) bool {
-			return nodes[i].Stats.BytesInPerSec+nodes[i].Stats.BytesOutPerSec < nodes[j].Stats.BytesInPerSec+nodes[j].Stats.BytesOutPerSec
+		slices.SortFunc(nodes, func(a, b *livekit.Node) int {
+			ratea := &livekit.NodeStatsRate{}
+			if len(a.Stats.Rates) > 0 {
+				ratea = a.Stats.Rates[0]
+			}
+
+			rateb := &livekit.NodeStatsRate{}
+			if len(b.Stats.Rates) > 0 {
+				rateb = b.Stats.Rates[0]
+			}
+			return utils.Signum((ratea.BytesIn + ratea.BytesOut) - (rateb.BytesIn + rateb.BytesOut))
 		})
 		return nodes[0], nil
 	default:
 		return nil, ErrSortByUnknown
 	}
 }
+
+func selectTwoRandomNodes(nodes []*livekit.Node) (*livekit.Node, *livekit.Node, error) {
+	if len(nodes) < 2 {
+		return nil, nil, ErrNoAvailableNodes
+	}
+
+	shuffledIndices := rand.Perm(len(nodes))
+
+	return nodes[shuffledIndices[0]], nodes[shuffledIndices[1]], nil
+}
@@ -25,6 +25,7 @@ import (

 	"github.com/livekit/livekit-server/pkg/config"
 	"github.com/livekit/livekit-server/pkg/telemetry/prometheus"
+	"github.com/livekit/livekit-server/pkg/utils"
 	"github.com/livekit/protocol/livekit"
 	"github.com/livekit/protocol/logger"
 	"github.com/livekit/protocol/rpc"
@@ -50,7 +51,7 @@ type signalClient struct {
 }

 func NewSignalClient(nodeID livekit.NodeID, bus psrpc.MessageBus, config config.SignalRelayConfig) (SignalClient, error) {
-	c, err := rpc.NewTypedSignalClient(
+	client, err := rpc.NewTypedSignalClient(
 		nodeID,
 		bus,
 		middleware.WithClientMetrics(rpc.PSRPCMetricsObserver{}),
@@ -63,7 +64,7 @@ func NewSignalClient(nodeID livekit.NodeID, bus psrpc.MessageBus, config config.
 	return &signalClient{
 		nodeID: nodeID,
 		config: config,
-		client: c,
+		client: client,
 	}, nil
 }

@@ -88,25 +89,27 @@ func (r *signalClient) StartParticipantSignal(
 		return
 	}

-	l := logger.GetLogger().WithValues(
+	l := utils.GetLogger(ctx).WithValues(
 		"room", roomName,
 		"reqNodeID", nodeID,
 		"participant", pi.Identity,
 		"connID", connectionID,
+		"participantInit", &pi,
+		"startSession", logger.Proto(ss),
 	)

 	l.Debugw("starting signal connection")

 	stream, err := r.client.RelaySignal(ctx, nodeID)
 	if err != nil {
-		prometheus.MessageCounter.WithLabelValues("signal", "failure").Add(1)
+		prometheus.RecordSignalRequestFailure()
 		return
 	}

 	err = stream.Send(&rpc.RelaySignalRequest{StartSession: ss})
 	if err != nil {
 		stream.Close(err)
-		prometheus.MessageCounter.WithLabelValues("signal", "failure").Add(1)
+		prometheus.RecordSignalRequestFailure()
 		return
 	}

@@ -130,6 +133,8 @@ func (r *signalClient) StartParticipantSignal(
 			resChan,
 			signalResponseMessageReader{},
 			r.config,
+			prometheus.RecordSignalResponseSuccess,
+			prometheus.RecordSignalResponseFailure,
 		)
 		l.Debugw("signal stream closed", "error", err)

@@ -139,6 +144,8 @@ func (r *signalClient) StartParticipantSignal(
 	return connectionID, sink, resChan, nil
 }

+// ------------------------------
+
 type signalRequestMessageWriter struct{}

 func (e signalRequestMessageWriter) Write(seq uint64, close bool, msgs []proto.Message) *rpc.RelaySignalRequest {
@@ -153,6 +160,8 @@ func (e signalRequestMessageWriter) Write(seq uint64, close bool, msgs []proto.M
 	return r
 }

+// -------------------------------
+
 type signalResponseMessageReader struct{}

 func (e signalResponseMessageReader) Read(rm *rpc.RelaySignalResponse) ([]proto.Message, error) {
@@ -163,6 +172,8 @@ func (e signalResponseMessageReader) Read(rm *rpc.RelaySignalResponse) ([]proto.
 	return msgs, nil
 }

+// -----------------------------------------
+
 type RelaySignalMessage interface {
 	proto.Message
 	GetSeq() uint64
@@ -182,6 +193,8 @@ func CopySignalStreamToMessageChannel[SendType, RecvType RelaySignalMessage](
 	ch *MessageChannel,
 	reader SignalMessageReader[RecvType],
 	config config.SignalRelayConfig,
+	promSignalSuccess func(),
+	promSignalFailure func(),
 ) error {
 	r := &signalMessageReader[SendType, RecvType]{
 		reader: reader,
@@ -190,16 +203,16 @@ func CopySignalStreamToMessageChannel[SendType, RecvType RelaySignalMessage](
 	for msg := range stream.Channel() {
 		res, err := r.Read(msg)
 		if err != nil {
-			prometheus.MessageCounter.WithLabelValues("signal", "failure").Add(1)
+			promSignalFailure()
 			return err
 		}

 		for _, r := range res {
 			if err = ch.WriteMessage(r); err != nil {
-				prometheus.MessageCounter.WithLabelValues("signal", "failure").Add(1)
+				promSignalFailure()
 				return err
 			}
-			prometheus.MessageCounter.WithLabelValues("signal", "success").Add(1)
+			promSignalSuccess()
 		}

 		if msg.GetClose() {
@@ -209,6 +222,8 @@ func CopySignalStreamToMessageChannel[SendType, RecvType RelaySignalMessage](
 	return stream.Err()
 }

+// ----------------------------------------
+
 type signalMessageReader[SendType, RecvType RelaySignalMessage] struct {
 	seq    uint64
 	reader SignalMessageReader[RecvType]
@@ -236,6 +251,8 @@ func (r *signalMessageReader[SendType, RecvType]) Read(msg RecvType) ([]proto.Me
 	return res, nil
 }

+// ----------------------------------------
+
 type SignalSinkParams[SendType, RecvType RelaySignalMessage] struct {
 	Stream         psrpc.Stream[SendType, RecvType]
 	Logger         logger.Logger