topic Live Session vs Active Sessions in Open Q&A

Live Session vs Active Sessions

mengsuan_koe1 — Wed, 10 Dec 2025 08:01:58 GMT

Hi everyone!

I noticed that the Active Sessions count in a Mobile App dashboard, showing different values from number of Live Session in USQL. Both have same timeframe filter and is being loaded very close to each other.

What's more intriguing is the value of Active Sessions would change when timeframe filter is changed.

Last 1 hour:

Last 2 hours:

Today:

In my impression, the active sessions should stay the same for the application regardless of my timeframe filter.

Appreciate some enlightenment.

Re: Live Session vs Active Sessions

khaled_beshir — Wed, 10 Dec 2025 09:44:03 GMT

hello @mengsuan_koe1 ,

if the user is live , this not by necessary mean he is active , cause may be he open app but not click or touch any thing so the number of "live user" sessions should be greater than the number of "active user" sessions

for more clarification you can visit the following document link : https://docs.dynatrace.com/docs/shortlink/user-session#live-vs-active-users

also there are limitation in USQL that , Only closed user sessions can be queried. Live user sessions aren't taken into account. https://docs.dynatrace.com/docs/shortlink/usql-info#limitations

Best Of Luck

Re: Live Session vs Active Sessions

PierreGutierrez — Wed, 10 Dec 2025 16:40:33 GMT

Hi @mengsuan_koe1
The data comparation that you show, combines two differents concepts : Live and Active Sessions
In the documentation can find the detail : https://docs.dynatrace.com/docs/shortlink/user-session#live-vs-active-users

I think is important to know more information about USQL too : https://docs.dynatrace.com/docs/shortlink/usql-info#limitations , specialy this

I hope its helpful 💪