@icy-policeman-64898 Failed to stop egress: TwirpError(code=failed_precondition, message=egress with status EGRESS_ABORTED cannot be stopped, status=412) {'TwirpError(code=failed_precondition, message=egress with status EGRESS_ABORTED cannot be stopped, status=412)'}" Does the state EGRESS_ABORTED discards the recorded file ?

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

how to avoid this any other method to use egress maybe segmented one to use ?

Thanks — you're asking how to avoid EGRESS_ABORTED and whether a segmented egress option exists. Short answer: • There is no documented segmented/chunked egress feature. Segmentation as an automatic fault-tolerance method is not available. • To reduce the chance of EGRESS_ABORTED and lost files, use the following practices. Recommended actions: 1. Stop egress cleanly when the session ends (call

stopEgress()

from your backend) rather than relying on implicit termination. 2. Delete the room or ensure the egress participant leaves when all human participants have left so egress can finish cleanly. 3. Enable backup egress (temporary backup storage). If primary upload fails, backups are stored and referenced in the

egress_ended

webhook with

backupStorageUsed

and

manifestLocation

. 4. Handle webhooks for

egress_started

and

egress_ended

reliably and idempotently so you detect failures and backup availability. 5. Ensure agent stability and graceful shutdowns so the egress finalization/upload step can complete. If you want, I can: • Walk you through enabling backup egress and reading

egress_ended

webhook fields. • Help add a stop-everything flow (when participants leave) in your backend. Which would you like to do next? Sources: server-sdk-js | livekit/livekit_composite | DeepWiki | Universal Egress | LiveKit | Backup Egress Recordings | Why is my Agent insights data missing? | LiveKit | Best practices for managing webhook event streams | LiveKit, with interactive elements

egress_info = await lk_api.egress.start_room_composite_egress( api.RoomCompositeEgressRequest( room_name=self.room.name, audio_only=True, file_outputs=[ api.EncodedFileOutput( file_type=api.EncodedFileType.OGG, filepath=filepath, gcp=api.GCPUpload( bucket=settings.egress.gcs_bucket, credentials=credentials_json, ), ) ], ) ) encoded file output used, shall i use segmented so that error doesn't come up or it still will

Thanks — you’re asking whether switching your

EncodedFileOutput

(OGG) to a segmented output would prevent EGRESS_ABORTED. Short answer: segmented/chunked egress is not available, and using encoded file output alone does not prevent EGRESS_ABORTED. The aborted state can still occur (and when it does, no valid output is produced unless backup storage was used). What you can do to reduce risk: • Call

stopEgress()

from your backend when the session should end instead of relying on implicit termination. • Remove/delete the room or ensure the egress client leaves once participants finish so egress can finalize cleanly. • Enable backup egress / temporary storage so failed primary uploads can fall back to a backup; check

egress_ended

for

backupStorageUsed

and

manifestLocation

. • Verify GCP upload config and permissions (bucket name, service account creds, IAM roles) so uploads don’t fail mid-finalize. • Make agent shutdowns graceful to avoid interrupting finalization/upload steps. • Monitor webhooks (

egress_started

,

egress_ended

) and handle them idempotently to detect failures early. If you’d like, I can: • Walk through enabling/validating backup egress for your request, or • Review your

start_room_composite_egress

call and GCS config to check common failure points. Which would you prefer? , with interactive elements

backup storage ?

You're asking about backup storage for egress — what it is, how it works, and how to use it to recover recordings if primary upload fails. What backup storage is • A temporary fallback storage used when the primary cloud upload (e.g., GCS) fails during egress finalization. • When backup is used, the

egress_ended

webhook will include

backupStorageUsed: true

and a

manifestLocation

pointing to the backup artifacts. How it works • Primary output is attempted (your GCS

file_outputs

). • If final upload fails, LiveKit writes the output to a temporary backup bucket. • Backup artifacts are kept for a limited time (7 days) and can be downloaded using the

manifestLocation

provided in the

egress_ended

webhook. What you should do 1. Ensure you process

egress_ended

webhooks and check: ◦

backupStorageUsed

(bool) ◦

manifestLocation

(URL/path to download backup) 1. Verify your GCS config and credentials so primary uploads are less likely to fail: ◦ Correct bucket name ◦ Valid service account JSON ◦ Required IAM roles for upload 1. Keep webhook handling idempotent and reliable so you don't miss the

egress_ended

event. 2. If you need longer retention or guaranteed archival, copy backup artifacts from the manifest location to your own bucket after receiving the webhook. Would you like me to: • Walk through validating your GCS credentials and IAM for this

start_room_composite_egress

call, or • Show an example of how to parse

egress_ended

and download the

manifestLocation

backup?, with interactive elements

what about egress_aborted

You're asking specifically about EGRESS_ABORTED — what it means and whether backup storage helps. • EGRESS_ABORTED means the egress was terminated before finalization; no valid output is produced and any partial recording is discarded. • Backup storage only applies when finalization runs but the primary upload fails. If an egress is aborted mid-process, backup storage does not recover a discarded partial file. • To avoid EGRESS_ABORTED: ◦ Call

stopEgress()

from your backend when the session should end. ◦ Ensure the egress participant leaves or delete the room when humans leave. ◦ Make agent shutdowns graceful so finalization/upload can complete. ◦ Verify GCS bucket name, credentials, and IAM roles to prevent upload failures. ◦ Monitor and handle

egress_started

/

egress_ended

webhooks (check

backupStorageUsed

and

manifestLocation

). Would you like help adding a clean shutdown/stop flow or validating your GCS upload permissions? , with interactive elements

how to track egress_aborted and recover or backup the recording file during that state

You're asking how to detect EGRESS_ABORTED and whether you can recover or back up recordings when it happens. Short answer • EGRESS_ABORTED indicates the egress was terminated before finalization. No valid output is produced and partial recordings are are discarded — they cannot be recovered. • Backup storage only applies when finalization runs but primary upload fails. Backup will not save recordings for an aborted egress. How to track EGRESS_ABORTED 1. Subscribe to and process egress webhooks. 2. Inspect the

egress_ended

webhook payload: ◦ Check the

status

field — it will equal

EGRESS_ABORTED

for aborted sessions. ◦ Look for other fields (`error`/message) to help diagnose the cause. How to reduce risk and preserve recordings • Call

stopEgress()

from your backend to finalize cleanly when the session ends. • Ensure the egress participant leaves or delete the room when humans leave so egress can finish. • Make agent/service shutdowns graceful so finalization and uploads can complete. • Validate cloud upload config (GCS bucket name, service account JSON, IAM roles) to avoid upload failures that could lead to retries or errors. • Enable/handle backup storage: if finalization runs but upload fails,

egress_ended

will include

backupStorageUsed: true

and

manifestLocation

to download artifacts (kept 7 days). Next steps I can help with • Add webhook parsing example to detect

EGRESS_ABORTED

and alert/automate retries. • Walk through adding a clean-stop flow (

stopEgress()

+ room deletion) in your backend. • Validate your GCS credentials/IAM for uploads. Which would you like to do next? , with interactive elements

but will the webhook that tells EGRESS_ABORTED recover my recording

Short answer: no — the

egress_ended

webhook that reports

EGRESS_ABORTED

is only a notification; it cannot recover the recording because an aborted egress produces no valid output and partial data is discarded. Details and what you can do instead •

EGRESS_ABORTED

means finalization did not complete, so there is nothing for the webhook to point you to or download. • Backup storage only applies when finalization runs but the primary cloud upload fails. In that case

egress_ended

will include

backupStorageUsed: true

and a

manifestLocation

you can download from. That does not apply to aborted egress. • To prevent aborted egress and preserve recordings: ◦ Call

stopEgress()

from your backend when the session should end. ◦ Ensure the egress client leaves or delete the room when participants exit. ◦ Make agent/service shutdowns graceful so finalization and upload can complete. ◦ Validate GCS bucket, credentials, and IAM permissions so uploads don’t fail. ◦ Monitor

egress_started

/

egress_ended

webhooks and alert on

EGRESS_ABORTED

. Would you like me to: • Show an example webhook handler that detects

EGRESS_ABORTED

and alerts/automates retries, or • Review your stop/room-delete flow and GCS settings to reduce abort risk?, with interactive elements