I have been running Ubuntu 14 with custom tcp tuning parameters for a couple years. I applied, via puppet, all of the same tuning parameters, but on Ubuntu 18, my TCP Time Wait is very high. What is the best method of finding the source of this high TCP Time Wait? The process that is using the tcp connections is a java application.
Please let me know any other information I should provide.
Graph on the left is Ubuntu 18.04, right is Ubuntu 14.04