Preventing more than one concurrent user - Shiny RStudio Connect.

[Firth]

Hi all,

Is there a recommended way of preventing there from being multiple concurrent users of an app? Our app is deployed on RStudio Connect, and we only want it to be accessible by one user at a time.

Thanks!

[pieterjanvc]

Hi,

Welcome to the RStudio community!

As the whole point of Shiny is to be able to have multiple users, I'm not aware of any function within the app that can limit the number of active users.

On Shinyapps.io it seems you can limit the number of active users in the settings (max connections), so I assume you can do the same using RStudio connect. If you have only one worker process and 1 max connection, I assume the app will not allow multiple a the same time...

Let me know if this works, because there might be a way to do this in the code, but that would be less elegant...

Hope this helps,
PJ

[arunatindium]

Hi Pieterjanvc,

I want exactly the opposite of what Firth is asking in this post. pls take a look at this post and provide your feedback

unable to load Concurrent users (8-10 users) in Open source R studio of R version 4.1.0 within 6 seconds

I want to have concurrent users about 8 - 10 users with decent load speed (opening application in 5 - 6 secs) for open source RStduio server of R version 4.1.0 Currently , the app opens in 15 secs for just one user but when we start adding other users the app starts to slow down (takes a minute or so even for 4 users) . I understand that R studio open source allows only one session and in that we can use concurrent users. Is it possible to have concurrent users for about 8-10 users with decent speed (5-6 secs). We have the Rstudio in EC2 instance of t2.xlarge . No docker used. No load balancer , we have just one EC2 instance of t2.xlarge I did see a post for similar issue at Multiple …