Increasing memory and CPU cores to increase the number of simultaneous users

[Cyndy Bern]

Hello,

I read in the FAQ that if the BigBlueButton server meets the minimum requirements, the server should be able to support 200 simultaneous users.

Is it possible to have more concurrent users if we increase the memory and CPU cores ? For example, 32 GB instead of 16 GB and 12 CPU Cores instead of 8 CPUs? If so, do I need to make changes to the server configuration?

Thank you in advance for your help

[anton.g...@blindsidenetworks.com]

Hi!

Yes, in general a more powerful server will be able to support more users. It really depends on the activities within the session, the spread of users within the session etc.

For some configuration changes, likely the most important one can be found documented here: https://docs.bigbluebutton.org/administration/customize/#number-of-hasura-instances

While we have received community feedback about BigBlueButton supporting webinar type sessions in the many-hundreds of (passive) users case, it will be best if you do a test on your server that is more closely matching your expected use case.

Anton

[Erdem çelik]

Hello,

It mentiones on the documentation

" How many Hasura instances should I run?

As of BigBlueButton 3.0, we recommend keeping the default (single instance) unless you expect that your BigBlueButton server will be handling hundreds of simultaneous users. A second instance would prove benefitial for those aiming to support a larger number (several hundreds users), especially on hardware which is multiple times more performant than what we outline in the minimum server requirements. We have not yet noticed visible difference with more than two instances of Hasura, because at this level of usage, there are other aspects of BigBlueButton which will also begin showing signs of slowing down."

What is the highest number of visitors you guys could handle in a 1-N configuration? How can we help the BBB project to eliminate these bottlenecks. Every document or source I check mentions that we will experience issues once past 400-500 visitors.

18 Eylül 2025 Perşembe tarihinde saat 18:07:49 UTC+3 itibarıyla anton.g...@blindsidenetworks.com şunları yazdı: