JRServer community sessions on Tomcat start to grow wildly

[gustavofarias]

I have this JRS community 7.8 installed in Ubuntu 18 with Tomcat 9 (package managed).

I have noticed recently that sometimes for no apparent reason the number of sessions on Tomcat for the JRS app start to grow without control in the rate of dozens or tens per second. If I don't stop the app, or reload it it grows to a point where Tomcat becomes unusable.

At first I thought it was DoS attack, but then I discarded it as there is no increase in remote access to the app. As if the sessions are created by the app itself or Tomcat itself. Like in a infinite loop bug. The problem is, Tomcat shows no logs pointing anything wrong and the logs for JRS just don't exist. At least I can't find them in the locations pointed by lots of answers in the forums.