Screenshare Freezing on bbb 2.2

Odejinmi Samuel

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Mar 12, 2021, 3:00:38 AM3/12/21

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Hi All,

There is a minor issue with screen share on my BBB engine with the following server details,

CPU: 8 vCore

RAM: 32768 MB

Storage: 640 GB SSD

Bandwidth: 332.86 GB of 6000 GB

Scenario 1: A presenter is sharing a screen, at a point, 2 users complained the screen share is not changing. The presenter restarts the screen share and it works again.

Scenario 2: A presenter is sharing the screen, a user at the other end notices freezes in the screen. The user refresh its browser and screen share continue on the user end.

Kindly help with the follow:

1. What causes screen share freeze on bbb

2. What can be done to mitigate the issue.

Thanks.

Paulo Lanzarin

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Mar 12, 2021, 7:03:05 AM3/12/21

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> 1. What causes screen share freeze on bbb

Network fluctuations, generally.

Minimizing shared applications on some envs (eg X-based Linux envs) also freezes streams sometimes. Restoring the app usually normalizes it.

> 2. What can be done to mitigate the issue.

The next 2.3 alpha will probably have some improvements on that regard so recommend waiting for it and testing there.

s,

prlanzarin

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sd...@distancelearning.cloud

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Mar 12, 2021, 8:44:00 AM3/12/21

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8vcore = 4cores? How many users are on the server, and getting the stream?

Regards,

Stephen

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Odejinmi Samuel

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Mar 12, 2021, 11:14:41 PM3/12/21

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Thanks for your response @ paulo.

Thanks for your interest @ sdame.

It happens with 3 users, and 15 users in another scenario.

Regards

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Ivan Demin

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Mar 15, 2021, 10:35:49 AM3/15/21

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Hello,

this is happening to some of my users.

They are using Surface and Chrome.

This are my configuration of the server:

BigBlueButton Server 2.2.31 (2307)

Kernel version: 4.15.0-136-generic

Distribution: Ubuntu 16.04.7 LTS (64-bit)

Memory: 198011 MB

CPU cores: 64

/usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties (bbb-web)

bigbluebutton.web.serverURL: https://MYSERVERURL

defaultGuestPolicy: ALWAYS_ACCEPT

svgImagesRequired: true

/etc/nginx/sites-available/bigbluebutton (nginx)

server_name: MYSERVERURL

port: 80, [::]:80

port: 443 ssl

/opt/freeswitch/etc/freeswitch/vars.xml (FreeSWITCH)

local_ip_v4: 168.119.138.160

external_rtp_ip: 168.119.138.160

external_sip_ip: 168.119.138.160

/opt/freeswitch/etc/freeswitch/sip_profiles/external.xml (FreeSWITCH)

ext-rtp-ip: $${local_ip_v4}

ext-sip-ip: $${local_ip_v4}

ws-binding: 168.119.138.160:5066

wss-binding: 168.119.138.160:7443

/usr/local/bigbluebutton/core/scripts/bigbluebutton.yml (record and playback)

playback_host: live.ihk-biz.de

playback_protocol: https

ffmpeg: 4.2.4-1ubuntu0.1bbb1~16.04.1

/etc/bigbluebutton/nginx/sip.nginx (sip.nginx)

proxy_pass: 168.119.138.160

protocol: http

/usr/local/bigbluebutton/bbb-webrtc-sfu/config/default.yml (Kurento SFU)

kurento.ip: 168.119.138.160

kurento.url: ws://127.0.0.1:8888/kurento

kurento.sip_ip: 168.119.138.160

localIpAddress: 168.119.138.160

recordScreenSharing: true

recordWebcams: true

codec_video_main: VP8

codec_video_content: VP8

/usr/share/meteor/bundle/programs/server/assets/app/config/settings.yml (HTML5 client)