PPS Upgrade Advisory - Tomcat Instability - Fix coming in 19.1 later this week
During testing we have found that the AI becomes completely unresponsive and we have to restart everything to get things working.
We were are able to reproduce the issue with LoadRunner using a login / logout script.
Just found out this is a know issue and the fix is coming in 19.1.
Looks like also possible to work around by increasing Tomcat's memory. We default max is 256M which seems very low. We have increased to 2 G and are running a load test as I post this.