{id: "AE_t2uc3rehQRhw" project_id: "p_54i9l8qbrru" room_id: "RM_WRf5iAn4zX7P" timestamp: "2025-12-15T185212Z" type: "Participant left (CLIENT_INITIATED)" participant_id: "PA_QHBCGpzwcgg9" participant_identity: "agent-AJ_5tTpU6XnivNk" node_id: "NM_OASHBURN1B_EUSn5SFqsYZa" timestamp_us: 1765824732401379 disconnect_reason: "CLIENT_INITIATED" } How does this happen?

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

yes please

Great — I'll help you find the disconnect source. To give precise steps, which agent implementation are you using? (Pick one) • Python (LiveKit Agents / asyncio) • Node.js / JavaScript client • iOS (Swift) • Android (Kotlin/Java) • A custom client (please specify language/framework) Once you tell me, I’ll list the exact log locations, code patterns to search for, and sample debug statements to add. Sources: Understanding the STATE_MISMATCH Disconnect Reason | Server-side | livekit/livekit_composite | DeepWiki | Connecting to LiveKit | LiveKit docs | Events and error handling | LiveKit docs | How to detect and handle silence during calls

Python

Great — I’ll walk you through targeted steps to find what triggered the

CLIENT_INITIATED

disconnect in your Python agent. 1) Search for explicit disconnect/shutdown calls • Look for

await session.aclose()

,

session.shutdown()

or

await session.shutdown()

in agent code. • Look for

await ctx.room.disconnect()

or

ctx.shutdown()

in any Job/JobContext handlers. • Check for shutdown callbacks added with

ctx.add_shutdown_callback(...)

that call any of the above. 2) Inspect recent agent logs (before the disconnect) • Use

lk agent logs

or your app’s logs and search the 30–60 seconds before the event timestamp for messages like “shutting down”, “session closed”, “closing session”, or your custom shutdown logs. • Add temporary debug logs around each suspected exit point, for example:

<http://logger.info|logger.info>("shutdown triggered: reason=<describe-condition>")
await session.aclose()

3) Check lifecycle/error handlers • Search for error handlers or exception branches that call

session.aclose()

or

ctx.room.disconnect()

(e.g., except blocks, timeout handlers). • Inspect task-completion logic that ends the job and triggers a graceful shutdown. 4) Verify framework hooks and app shutdown • If running under a web server or orchestrator (uvicorn, systemd, container shutdown), confirm graceful shutdown hooks aren’t triggering

session.aclose()

. • Check

ctx.add_shutdown_callback()

implementations to ensure they only run when intended. 5) Correlate webhook and server events • Match the participant_left webhook (or server logs) timestamp to your agent logs to find the exact code path executed at that time. If you’d like, I can: • Provide exact grep/search commands to find these calls in your repo. • Show example debug/logging snippets to add around shutdown points. Which would you prefer? Sources: Server-side | livekit/livekit_composite | DeepWiki | Job lifecycle | LiveKit docs | Connecting to LiveKit | LiveKit docs | Log collection | LiveKit Docs | How to detect and handle silence during calls

yes please give me grep commands

Below are grep and ripgrep (rg) commands to find common Python patterns that trigger a CLIENT_INITIATED disconnect. Run these from your project root. Search for explicit shutdown/disconnect calls: • grep: ◦ grep -RnE "session\.aclose(|session\.shutdown(|ctx\.room\.disconnect(|ctx\.shutdown(" . • ripgrep: ◦ rg "session\.aclose(|session\.shutdown(|ctx\.room\.disconnect(|ctx\.shutdown(" Search for Room/client disconnect APIs and common variants: • grep: ◦ grep -RnE "room\.disconnect(|Room\.disconnect(|disconnect()" . • ripgrep: ◦ rg "room\.disconnect(|Room\.disconnect(|\bdisconnect()" Search shutdown callbacks and hooks: • grep: ◦ grep -RnE "add_shutdown_callback|on_shutdown|atexit|signal\.SIGTERM|signal\.SIGINT" . • ripgrep: ◦ rg "add_shutdown_callback|on_shutdown|atexit|signal\.SIGTERM|signal\.SIGINT" Search agent session lifecycle and helpers: • grep: ◦ grep -RnE "AgentSession|session\.close(|session\.aclose(|job_context|JobContext" . • ripgrep: ◦ rg "AgentSession|session\.close(|session\.aclose(|JobContext|job_context" Search for keywords in exception/timeout handlers: • grep: ◦ grep -RnE "except .*|try|timeout|cancelled" . • ripgrep: ◦ rg "except .*|try|timeout|cancelled" Show surrounding lines to see context (use -n and -C for grep, -n -H -C for rg): • grep example: ◦ grep -RnC 4 "session\.aclose(" . • ripgrep example: ◦ rg -n -H -C 4 "session\.aclose(" Filter only Python files: • grep: ◦ grep -R --include="*.py" -nE "session\.aclose(|ctx\.room\.disconnect(" . • ripgrep: ◦ rg --type py "session\.aclose(|ctx\.room\.disconnect(" If you’d like, I can produce a single combined rg command that searches the most likely patterns and prints 5 lines of context. Do you want that combined command?

getting empty (sub)expression

The "empty (sub)expression" error comes from your shell/grep regex because of an unescaped or empty group like

()

in the pattern. Some of the earlier patterns (e.g.,

disconnect

) can be interpreted poorly by certain grep versions or shells. Use these simpler, safe commands instead. 1) Search for explicit shutdown/disconnect calls (safe, works in bash/zsh): • grep: ◦ grep -RnE "session\.aclose|session\.shutdown|ctx\.room\.disconnect|ctx\.shutdown" . • ripgrep: ◦ rg "session.aclose|session.shutdown|ctx.room.disconnect|ctx.shutdown" 2) Search for disconnect API usage: • grep: ◦ grep -RnE "room\.disconnect|Room\.disconnect|\bdisconnect\b" . • ripgrep: ◦ rg "room.disconnect|Room.disconnect|\<disconnect\>" 3) Search shutdown hooks and signals: • grep: ◦ grep -RnE "add_shutdown_callback|on_shutdown|atexit|signal\.SIGTERM|signal\.SIGINT" . • ripgrep: ◦ rg "add_shutdown_callback|on_shutdown|atexit|SIGTERM|SIGINT" 4) Show context around matches: • grep: ◦ grep -R --include="*.py" -nC 4 "session\.aclose" . • ripgrep: ◦ rg --type py -n -C 4 "session.aclose" Notes: • Avoid literal

()

in regex; match function names without parentheses as above. • If you need exact

()

matches, escape them as



and wrap pattern in single quotes: e.g. grep -RnE 'session\.aclose(' . • Run commands from your project root. Would you like a single combined

rg

command that checks the top patterns and prints 5 lines of context?

I am not able to check agent logs because it happend yesterday

You can still investigate yesterday’s disconnect — even if you don’t have local logs now — by checking persisted logs and adding monitoring so future events are captured. To proceed, tell me where your agent runs (pick one): • LiveKit Agents managed/CLI (deployed with

lk agent

) • Container (Docker / Kubernetes) • VM / systemd / bare-metal • Platform-as-a-service (Heroku, AWS Lambda, Google Cloud Run, etc.) • Local developer machine While you tell me, here are general actions you can take now to find yesterday’s disconnect and prevent blind spots going forward. Immediate steps to find past evidence • Check centralized log storage (if used): search your log aggregator (CloudWatch, Datadog, Splunk, GCP Logging, Papertrail) for the agent identity

agent-AJ_5tTpU6XnivNk

,

session

,

shutdown

,

aclose

,

disconnect

, or the timestamp 2025-12-15T185212Z. • LiveKit agent CLI logs: if you used

lk agent

to run the agent, run

lk agent logs --since "2025-12-15T18:00:00Z" --until "2025-12-15T19:00:00Z"

(adjust times) to pull that window. • Container/host logs: ◦ Docker:

docker logs <container> --since "2025-12-15T18:00:00Z" --until "2025-12-15T19:00:00Z"

◦ Kubernetes:

kubectl logs <pod> -n <ns> --since=2h

(or use

--since-time=...

) ◦ systemd:

journalctl -u <service> --since "2025-12-15 18:00:00" --until "2025-12-15 19:00:00"

• Webhooks and server-side events: check your server/webhook receiver logs for

participant_left

around that timestamp; the webhook includes participant identity and can help correlate with agent-side events. • LiveKit server logs: if you host LiveKit yourself, search server logs for the

ParticipantCloseReasonClientRequestLeave

or that participant identity at the timestamp. If you can’t find logs for that time, add these to capture future events • Add structured debug logs around shutdown paths: ◦ Before any

await session.aclose()

/

await ctx.room.disconnect()

add a log with a clear reason and stack trace. ◦ Log lifecycle events: job start, job complete, timeouts, exception handlers, shutdown callback execution. • Correlate logs with participant identity and session id so server webhooks and agent logs are joinable. • Persist logs to a centralized store with retention (CloudWatch, Datadog, Splunk, GCP Logging). • Add a webhook receiver that stores

participant_left

events to a DB or log index for later forensics. • Enable increased SDK/agent debug logging in your environment so the client emits disconnect reasons. Next step: tell me where the agent runs and whether you have a centralized logging system; I’ll give exact commands and sample queries for that environment.

Incorrect Usage: flag provided but not defined: -since

Thanks — I understand. Since you can’t view local logs now, here are concrete steps you can take right away to find yesterday’s disconnect and set up reliable future capture. Pick the environment your agent ran in and run the matching commands. If your agent ran via LiveKit Cloud /

lk agent

• The CLI does not support time-range flags. Use the LiveKit Cloud dashboard Sessions view to inspect the session timeline for 2025-12-15T185212Z. • You can stream current logs with: ◦ lk agent logs • To view build logs: ◦ lk agent logs --log-type=build If your agent ran in Docker • Get container logs for that time window: ◦ docker logs <container> --since "2025-12-15T180000" --until "2025-12-15T190000" • Or show recent logs and grep for disconnects: ◦ docker logs <container> 2>&1 | rg "aclose|shutdown|disconnect|session" --context 3 If your agent ran in Kubernetes • Use pod logs with a since-time: ◦ kubectl logs <pod> -n <namespace> --since-time="2025-12-15T180000Z" • Or for recent time ranges: ◦ kubectl logs <pod> -n <namespace> --since=2h | rg "aclose|shutdown|disconnect|session" -n -C 3 If your agent ran under systemd (VM / bare metal) • journalctl -u <service> --since "2025-12-15 180000" --until "2025-12-15 190000" | rg "aclose|shutdown|disconnect|session" -n -C 3 If your agent ran on a PaaS (Heroku / Cloud Run / Lambda) • Use the provider’s log console (Heroku logs, Cloud Run / Cloud Logging, CloudWatch) and search for the identity

agent-AJ_5tTpU6XnivNk

or keywords

aclose

,

shutdown

,

disconnect

. • Example Cloud Logging (gcloud): ◦ gcloud logging read 'timestamp>="2025-12-15T180000Z" AND textPayload:("aclose" OR "shutdown" OR "disconnect" OR "agent-AJ_5tTpU6XnivNk")' --limit 50 If you have a centralized log store (Datadog / Splunk / CloudWatch) • Query for the participant identity

agent-AJ_5tTpU6XnivNk

,

session

,

aclose

,

disconnect

,

shutdown

around 2025-12-15T185212Z. If none of the above return results • Check webhook receiver logs for

participant_left

events at that timestamp — the webhook payload includes participant identity and can confirm server-side receipt. • If you used LiveKit Cloud, session timelines (dashboard) contain combined logs/traces for that session. Want me to produce exact commands tailored to your environment? Tell me which of the environments above the agent ran in and whether you have centralized logging (and which provider). Sources: Log collection | LiveKit Docs | Agent insights in LiveKit Cloud | LiveKit docs | How to detect and handle silence during calls

Can you search previous day logs using lk agent logs?

No —

lk agent logs

cannot retrieve or search logs from a previous day. It only streams live logs from the newest running instance and can show build logs for the most recent deployment. What you can do instead: • Use the LiveKit Cloud dashboard Sessions view to open the session timeline for 2025-12-15T185212Z and inspect combined logs/traces/transcripts. • Check wherever your agent’s runtime logs are persisted (Docker, Kubernetes, systemd, CloudWatch/Cloud Logging, Datadog, Splunk) and query that store for

agent-AJ_5tTpU6XnivNk

,

aclose

,

shutdown

,

disconnect

, or the timestamp. • Check your webhook receiver logs for the

participant_left

event at that time. If you tell me where the agent ran (LiveKit Cloud, Docker, K8s, systemd, or a cloud provider) I’ll give exact commands or dashboard query examples to pull logs for that time window.

how do i query datadog?

Good — here’s exactly how to query Datadog for yesterday’s disconnect event. 1) Confirm logs are ingested • Ensure your agent was forwarding logs to Datadog (Datadog token set via

DATADOG_TOKEN

/

lk agent update-secrets

). 2) Open Datadog Log Explorer • In Datadog go to Logs > Log Explorer. 3) Use this sample query (replace values) • Basic: @source:"your-agent-id" @service:"cloud.livekit.io" "CLIENT_INITIATED" • With identity and timeframe: @source:"your-agent-id" @service:"cloud.livekit.io" "CLIENT_INITIATED" AND @message:"agent-AJ_5tTpU6XnivNk" • If your logs put identity in a different attribute, use that field (for example

@host

or

@worker_id

) instead of the message filter. 4) Set the time window • Use the timepicker to set a custom range covering 2025-12-15T180000Z → 2025-12-15T190000Z (or "Past 24 hours" if appropriate). 5) Useful alternate filters and keywords • Keywords: "aclose", "shutdown", "disconnect", "session", "participant_left" • Fields: @host, @service, @source, @stream • Example combined query: @source:"your-agent-id" @service:"cloud.livekit.io" ("aclose" OR "shutdown" OR "disconnect" OR "CLIENT_INITIATED") 6) Narrow results and inspect context • Click a matching log and view surrounding logs to see what triggered the shutdown. • Expand attributes to find any structured fields (session id, room id, stack trace). 7) If you get no results • Confirm the agent was configured to forward logs at that time. • Search more broadly by time only for

agent-AJ_5tTpU6XnivNk

or just `disconnect`/`aclose`. • Check your webhook receiver for

participant_left

events at 2025-12-15T185212Z to correlate. If you’d like, tell me: • your agent’s Datadog

@source

value (or the field that contains agent identity) and • whether you prefer the exact Datadog query syntax with that field filled in, and I’ll produce the exact query string to paste into Log Explorer. Sources: Log collection | LiveKit Docs | Server-side | livekit/livekit_composite | DeepWiki | Job lifecycle | LiveKit docs