here are my startup logs for my livekit server. i am trying to use livekit egress to record room audio. do these livekit server logs look ok? Timestamp (UTC-07:00) Message Container September 18, 2025, 16:04 2025-09-18T230420.230Z INFO livekit service/server.go:264 starting LiveKit server {"portHttp": 7880, "nodeID": "ND_oa8HL74cJP8h", "nodeIP": "169.254.172.2", "version": "1.9.1", "rtc.portTCP": 7881, "rtc.portICERange": [50000, 60000]} livekit-server September 18, 2025, 16:04 2025-09-18T230420.225Z INFO livekit routing/interfaces.go:180 using single-node routing

Thanks for reaching out, Jason. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.

the egress service is configured. below are the startup logs. other than aws ecs standard logging, is there something else i should do to enable logging? do the egress startup logs look ok? Timestamp (UTC-07:00) Message Container Timestamp (UTC-07:00) Message Container Septe`mber 17, 2025, 23:32` 2025`-09-18T063231.638Z INFO egress server/server.go:148 service ready {"nodeID": "NE_N9AxAUPksUmk", "clusterID": ""}` livekit-egress Sep`tember 17, 2025, 23:32` 20`25-09-18T063231.637Z INFO egress stats/monitor.go:145 cpu available: 4.000000 max cost: 4.000000 {"nodeID": "NE_N9AxAUPksUmk", "clusterID": ""}` livekit-egress S`eptember 17, 2025, 23:32`

2025-09-18T06:32:31.619Z INFO egress redis/redis.go:142 connecting to redis {"nodeID": "NE_N9AxAUPksUmk", "clusterID": "", "simple": true, "addr": "<http://listenful-redis-o4efwf.serverless.usw2.cache.amazonaws.com:6379|listenful-redis-o4efwf.serverless.usw2.cache.amazonaws.com:6379>"}

livekit-egress

September 17, 2025, 23:32

I: [pulseaudio] main.c: Daemon startup successful.

livekit-egress

September 17, 2025, 23:32

+ exec /tini -- egress

livekit-egress

September 17, 2025, 23:32

+ pulseaudio -D --verbose --exit-idle-time=-1 --disallow-exit

livekit-egress

September 17, 2025, 23:32

+ rm -rf /var/run/pulse /var/lib/pulse /home/egress/.config/pulse /home/egress/.cache/xdgr/pulse

livekit-egress

September 17, 2025, 23:32

+ rm -rf '/home/egress/tmp/*'

It looks like your egress service startup logs show a successful initialization, including connections to Redis and the setup of important components like PulseAudio. If you'd like to get more detailed insights, you can easily enable additional logging by adjusting the logging level in your egress configuration file. Just set the logging level to

debug

under the

logging

section, and you'll start capturing more detailed logs. There are also some helpful debug features you might consider enabling: • Track Logging: This logs packets and keyframes for each track, giving you a closer look at the data flow. • Stream Logging: Logs bytes and keyframes for each stream, which can be really useful for troubleshooting. • Chrome Logging: Captures all Chrome console events, providing a thorough view of browser interactions. If you're working with Docker, you can check the logs using

docker logs <container_id>

. And for Kubernetes, just run

kubectl logs <pod_name>

to see the logs from your egress service pod. I'd be happy to walk you through modifying the configuration file or help you enable any of these debug features—just let me know what you'd prefer! Sources: .github/ISSUE_TEMPLATE/bug_report.md | egress-sample.yaml

my config file is already has logging set to debug. here is the issue, i keep getting 503 errors when the livekit server tries to call the egress service: September 18, 2025, 16:21 2025-09-18T232155.893Z WARN livekit.psrpc.EgressInternal.StartEgress rpc/logging.go:66 client error {"topic": [""], "request": {"egressId": "EG_rKTTibYRGFDH", "roomComposite": {"roomName": "listenful_interview_48_394cfad6", "audioOnly": true, "audioMixing": "DEFAULT_MIXING", "preset": "H264_720P_30", "fileOutputs": [{"fileType": "MP4", "filepath": "interview_listenful_interview_48_394cfad6_20250918_232133.mp4", "s3": {"bucket": "listenful-recordings-prod"}}]}, "roomId": "RM_pRZ3888ARqCD"}, "response": null, "duration": "21.769428102s", "error": "no response from servers"} ba9fc345d00a44318938c267fa96a0ad livekit-server September 18, 2025, 16:21 2025-09-18T232155.893Z INFO livekit.api service/twirp.go:128 API Egress.StartRoomCompositeEgress {"service": "Egress", "method": "StartRoomCompositeEgress", "room": "listenful_interview_48_394cfad6", "baseUrl": "", "outputType": "file", "duration": "21.769907454s", "status": "503", "error": "twirp error unknown: no response from servers", "code": "unavailable"} we've done extensive troubleshooting: Extensive Troubleshooting Completed ✅ 1. Redis configuration comparison - Already verified they match 2. ECS deployment successful - Egress service running and connected to Redis 3. Network connectivity confirmed - Egress can reach Redis via TLS 4. Configuration debugging - Fixed volume mounts, environment variables, IAM roles 5. LiveKit server logs analysis - Confirmed it's making requests but getting 503s 6. Redis key inspection - We discussed checking Redis for egress node registration 7. Service discovery investigation - Confirmed communication should be through Redis only Current Status • ✅ Egress service: Running, connected to Redis, nodeID

NE_N9AxAUPksUmk

• ✅ LiveKit server: Making API calls, creating egress jobs • ❌ Gap: 22-second timeout, "no response from servers" help!

I'm sorry to hear you're experiencing those 503 errors. They usually happen when the LiveKit server can't connect to an egress instance or when all egress instances are busy. Looking at your logs and the steps you've taken, here are a few friendly suggestions that might help: • Redis Connectivity: It’s important to make sure both your LiveKit server and egress service are connected to the same Redis instance. Double-checking that the Redis settings match on both sides can really make a difference. • Egress Instance Capacity: If your egress instances are all full, you might want to consider adding more instances or setting up autoscaling to better handle the traffic. • Version Compatibility: Ensuring that your LiveKit server, egress service, and SDKs are all running compatible versions can help prevent unexpected hiccups. • Timeouts: The 22-second timeout you’re seeing might be related to network or service-level timeouts in your setup. This could point to a delay in how the egress instance is responding. If you’d like, I’d be happy to walk you through how to scale your egress instances or double-check your Redis connectivity. Just let me know! Sources: pkg/service/egress.go | Quotas and limits | LiveKit Docs | livekit/livekit_egress.twirp.go | .github/ISSUE_TEMPLATE/bug_report.md | SIP troubleshooting guide | LiveKit Docs

Summary of Findings: Issue: LiveKit egress service can't connect to Redis, preventing room recording functionality. Root Cause: AWS ElastiCache Serverless Redis is running in cluster mode (

redis_mode:cluster

), but the egress service configuration treats it as a single Redis instance.Evidence: • Manual Redis CLI connections work fine • Egress service shows "service ready" but no registration logs • Redis INFO shows

redis_mode:cluster

• Current egress config has standard single-instance Redis settings Question for LiveKit: "Our LiveKit egress service can't connect to AWS ElastiCache Serverless Redis. We discovered the Redis instance is running in cluster mode (

redis_mode:cluster). Our current egress configuration uses standard single-instance Redis settings:redis:
  address: hostname:6379
  db: 0
  tls:
    enabled: true
    insecure: true

Does LiveKit egress support Redis clusters? If so, what configuration changes are needed? If not, do we need to switch to a single-instance Redis setup instead of ElastiCache Serverless?"

I'm happy to let you know that LiveKit egress does support Redis clusters, starting from version 1.3.2, with even more improvements in the versions that followed. To get your egress service set up for Redis cluster mode, you can update your configuration like this:

redis:
  cluster_addresses:
    - your-redis-node-0:6379
    - your-redis-node-1:6380
  password: your-cluster-password

Here are a few important things to keep in mind: • Swap out the

address

field for

cluster_addresses

and include all your cluster node addresses. • The

db

field isn’t supported in cluster mode, so it will be ignored. • Make sure your LiveKit egress version is 1.3.2 or newer to take advantage of cluster support. If you'd like, I’m here to help you walk through applying these changes or double-check your setup. Just let me know! Sources: CHANGELOG.md | Distributed Setup | LiveKit Docs | Universal Egress

do you think that this is why i'm getting 503 errors from livekit server, and why it doesn't look like the egress service is connecting to redis?

It looks like the Redis cluster configuration mismatch is probably causing those 503 errors and the egress service having trouble connecting to Redis. Since your Redis is set up in cluster mode but the egress service is still configured for a single-instance Redis, it’s no surprise the egress service can’t properly register or communicate with the LiveKit server. Updating the egress configuration to use

cluster_addresses

for Redis cluster mode should do the trick. Once that’s updated, the egress service should connect smoothly to Redis, register itself, and handle requests from the LiveKit server without any timeouts. If you’d like, I’m here to help you apply those configuration changes or check the connection once you’ve updated it. Just let me know!

• i'm setting up a single instance. do you have a recommendation on node type? amazon q is saying: Start with

cache.t3.micro

or

cache.t4g.micro

(cheap for testing) but i wanted to check with you

Thanks for reaching out! While the sources don’t specify a particular Redis node type for LiveKit egress, a great starting point for testing would be a smaller instance like

cache.t3.micro

or

cache.t4g.micro

, as Amazon suggests. These options are budget-friendly and can comfortably handle basic workloads. As you grow or move into production, it’s a good idea to keep an eye on performance and think about upgrading to a larger instance if needed, based on how your usage evolves. Please feel free to reach out if you'd like some help with scaling or monitoring Redis performance for LiveKit—I’m here to support you! Sources: Universal Egress | pkg/config/base.go

i did not include PWD in my config body, but when i look inside the container at the environment variables, i see this: LIVEKIT_CONFIG_BODY=port: 7880 redis: address: master.livekit-redis.o4efwf.usw2.cache.amazonaws.com:6379 db: 0 tls: enabled: true insecure: true rtc: tcp_port: 7881 port_range_start: 50000 port_range_end: 60000 use_external_ip: true node_id: livekit-server-1 log_level: info development: false PWD=/ what is the PWD=/ ?

Thanks for reaching out! The

PWD

environment variable usually stands for the "Present Working Directory" in a container or operating system. In your case, seeing

PWD=/

simply means that the current working directory for the container is set to the root directory (

/

). This is a common environment variable and isn’t specific to LiveKit, so it won’t impact how your LiveKit setup works. If you have any more questions or want to chat about your configuration, I’m here to help!

i have made sure i've configured everything right. i've done the following debugging for livekit egress: LIVEKIT EGRESS: Exactly! Here's what we've confirmed: ✅ Confirmed working: Egress service is running (PID 16, healthy for 24+ minutes) Egress health endpoint responding ({"CpuLoad":4}) Egress can reach LiveKit server (HTTP/2 200 from livekit.listenful.ai) Egress can connect to Redis with TLS (PONG response) All network connectivity is working (security groups, VPC, etc.) Configuration is properly formatted (YAML indentation correct) and the following debugging for livekit server: LIVEKIT SERVER: ✅ Verification Results: LiveKit Server: Running successfully (PID 1) API Port 7880: Listening and ready for connections RTC Port 7881: Listening for WebRTC traffic Redis Connectivity: Full TLS connection working to ElastiCache Configuration Loading: YAML properly parsed and applied but recording is failing and i'm getting these logs from my livekit agent: livekit-agent September 18, 2025, 21:09 🔍 DEBUG: Twirp error code: unavailable livekit-agent September 18, 2025, 21:09 🔍 DEBUG: Twirp error message: twirp error unknown: no response from servers livekit-agent September 18, 2025, 21:09 🔍 DEBUG: Exception occurred, trying to capture raw response livekit-agent September 18, 2025, 21:09 🔍 DEBUG: Exception type: <class 'livekit.api.twirp_client.TwirpError'> livekit-agent September 18, 2025, 21:09 🔍 DEBUG: Exception message: TwirpError(code=unavailable, message=twirp error unknown: no response from servers, status=503) livekit-agent September 18, 2025, 21:09 🔍 DEBUG: Exception args: ('unavailable', 'twirp error unknown: no response from servers') livekit-agent September 18, 2025, 21:09 ❌ Failed to start recording: TwirpError(code=unavailable, message=twirp error unknown: no response from servers, status=503) livekit-agent September 18, 2025, 21:09 ❌ Exception type: <class 'livekit.api.twirp_client.TwirpError'> livekit-agent September 18, 2025, 21:09 💾 Saved to DB: user message (conversation 686) livekit-agent September 18, 2025, 21:09 💬 REAL-TIME: user: Hello? Are you there? livekit-agent September 18, 2025, 21:08 🎵 Configuring S3 recording: bucket=listenful-recordings-prod, file=interview_listenful_interview_48_ca3375b0_20250919_040855.mp4 livekit-agent September 18, 2025, 21:08 🎵 Starting recording request for room: listenful_interview_48_ca3375b0 livekit-agent September 18, 2025, 21:08 🎵 Using S3 storage: bucket=listenful-recordings-prod, file=interview_listenful_interview_48_ca3375b0_20250919_040855.mp4 livekit-agent September 18, 2025, 21:08 🎵 Request details: audio_only=True, file_type=MP4 livekit-agent September 18, 2025, 21:08 🔍 DEBUG: About to send request to egress service livekit-agent and there are no logs from the egress service (other than startup messages from hours ago). why is recording failing ?

I understand how frustrating those 503 errors and the "no response from servers" message can be. They usually mean that the LiveKit server is having trouble connecting to the egress service. Based on what you’ve shared from your logs and debugging, here are a few common causes and some friendly next steps to try: • Redis Connectivity: It’s a good idea to double-check that both the LiveKit server and egress service are connected to the same Redis instance. Even if Redis connectivity seems okay, sometimes there can be intermittent hiccups worth looking into. • Egress Instance Capacity: If your egress service is running but not responding, it might be overwhelmed. Checking if it’s at capacity and considering scaling up or adding more instances could really help. • Configuration: Please make sure the egress service is properly set up to handle requests, including the right Redis settings and storage outputs like your S3 bucket. Also, since you’re not seeing any logs from the egress service after startup, it might mean the service isn’t processing requests yet. You can try enabling debug-level logging in the egress configuration to get more insight into what’s happening with incoming requests and any errors. If you’d like, I’m here to help you with scaling, debugging, or checking the egress service setup—just let me know! Sources: test/edge.go

i don't know if it helps but here are my redis engine logs. all of these events happened many hours before the latest test, so there are essentially no redis engine logs for the current test. shouldn't there be some redis log showing that the egress service registered with redis or something like that? Redis Engine Log: Timestamp Message Timestamp Message No older events at this moment. Retry 2025-09-19T003418.000Z livekit-redis-001/0001:M 19 Sep 2025 003418.031 UTC * Replica has started synchronizing with the primary. 2025-09-19T003418.000Z livekit-redis-001/0001:M 19 Sep 2025 003418.031 UTC * Current background save has socket target. Waiting for next background save for SYNC. 2025-09-19T003448.000Z livekit-redis-001/0001:M 19 Sep 2025 003448.784 UTC * Replica has successfully completed synchronization with the primary. 2025-09-19T015725.000Z livekit-redis-001/0001:M 19 Sep 2025 015725.623 UTC * Error accepting a client connection: connection is closed. 2025-09-19T015744.000Z livekit-redis-001/0001:M 19 Sep 2025 015744.159 UTC * Error accepting a client connection: connection is closed. No newer events at this moment. Auto retry paused. Resume

Hi there! I wanted to share some helpful info about Redis logs in a LiveKit setup. Usually, Redis logs don’t show the egress service registration directly. That’s because the egress service uses Redis mainly for coordination and storing state, like saving egress job details under keys such as

EgressKey

and

RoomEgressPrefix

. These actions, however, aren’t typically logged in the Redis engine logs by default. If you want to keep an eye on egress registration and its status, a good approach is to check the egress service logs themselves or use monitoring tools like Prometheus. For example, if you’ve enabled the

prometheus_port

in your egress configuration, you can track useful metrics like

livekit_egress_available

to see if the service is up and running smoothly. Please feel free to reach out if you’d like some help setting up Prometheus metrics or if you want to dive deeper into debugging the egress service logs. I’m here to assist you! Sources: Self-hosting the Egress Service | LiveKit Docs | pkg/service/wire_gen.go | Universal Egress

yes i'd like help setting up prometheus metrics

To help you enable Prometheus metrics for the LiveKit egress service, here’s a simple step-by-step guide: 1. Update Configuration: Please add the following line to your egress configuration file to turn on the Prometheus metrics endpoint:

prometheus_port: 9090

This will make the metrics available at

<EGRESS_HOST>:9090/metrics

. 1. Verify Metrics: You can check the metrics endpoint by opening it in your browser or using a tool like

curl

to make sure everything is running smoothly. 2. Configure Prometheus: Next, add a scrape job in your Prometheus configuration to gather metrics from the egress service. Here’s an example:

scrape_configs:
  - job_name: 'livekit_egress'
    static_configs:
      - targets: ['<EGRESS_HOST>:9090']

1. Monitor Key Metrics: Keep an eye on metrics like

livekit_egress_available

to see if the egress service is ready for requests, and

livekit_egress_requests

to track active egress jobs. If you run into any questions or need a hand with the Prometheus setup or understanding the metrics, please don’t hesitate to reach out—I’m here to help! Sources: livekit-server/templates/service.yaml | README.md | Egress &amp; Media Processing | livekit/livekit_composite | DeepWiki | Self-hosting the Egress Service | LiveKit Docs

do i need "turn" enabled in my livekit server configuration? i haven't enabled it

I want to assure you that TURN is not strictly required for LiveKit server configuration, but it’s highly recommended to help improve client connectivity, especially if you're working in environments with restrictive firewalls. TURN becomes really helpful if your clients are behind corporate firewalls that block UDP traffic or non-secure TCP traffic. LiveKit actually comes with an embedded TURN server that can provide secure connectivity via TLS or UDP. Enabling TURN/TLS is a great option because it makes the traffic look like regular HTTPS traffic, which is usually allowed by firewalls. If you decide to go ahead and enable TURN, you’ll just need to set up the domain, TLS certificates, and the right ports in your LiveKit configuration. Please feel free to reach out if you’d like some guidance on enabling TURN or configuring it for your specific setup—I’m here to help! Sources: Deploying LiveKit | LiveKit Docs | pkg/config/config.go

here is what amazon q is telling me - what do you think? 🎯 FOUND THE ROOT CAUSE! LiveKit is: • ✅ Reading the config correctly • ✅ Connecting to Redis successfully • ❌ NOT writing any service registration data 🔍 This explains everything: • PSRPC service-to-service communication fails because no services are registered • Redis is empty despite successful connections • LiveKit thinks it's working but can't discover other services

It looks like the challenge here is that LiveKit isn’t writing the service registration data to Redis, which is really important for the PSRPC service-to-service communication. Without this data, the LiveKit server can’t find the egress service, which is why you’re running into those failures. To help get this sorted, let’s go through a few things together: • Redis Write Permissions: Could you please check that your Redis instance allows write operations from both the LiveKit server and the egress service? • Configuration: It’s a good idea to double-check the Redis configuration on both the LiveKit server and the egress service, including any authentication details. • Service Logs: Have a look at the LiveKit server logs for any errors or warnings related to Redis or service registration—it might give us some clues. If after these steps the issue is still there, just let me know! We can dive deeper and find the right solution together.

now amazon q said this;

I don't have the answer you're looking for. You could also try asking your question: • in one of the other Slack channels or • to https://deepwiki.com/livekit/livekit_composite which is trained on all LiveKit source code If you find the answer, please post it here to help others!

what does this line do in the livekit server configuration? is it optional? node_id: livekit-server-1