I am monitoring my haproxy. It has a frontend for https and redirects to two backends.
One of the statistics that I have in graph is scur stat (current sessions).
I understand that this value tells me the number of current active sessions by my users.
The problem is in the data obtained and that I can not understand. In the frontend I get values of active sessions much greater than the sum of the sessions in the backends. Should not the number of sessions in the frontend be rigged to the sum of the sessions in the backend?
If not, what values are correct? What does the value of the fronted refer to? and especially, what does the value of the frontend refer to?
Attached two images, the first is the frontend, the second the two backends