> On Jun 25, 2024, at 13:12, Eric Robinson <eric.robin...@psmnv.com> wrote: > > I'm obviously not getting something. If I understand correctly, the purpose > of the acceptCount param is to allow tomcat to reject connections even after > the TCP stack has passed them to the java process. At that point, the request > has made it through the OS all the way to tomcat, so if tomcat rejects it, > then it should log a message... no?
No - Tomcat passes the acceptCount value to the TCP/IP stack of the OS as part of listener socket initialization. The accept queue is maintained entirely by the OS; Tomcat is not involved in the management thereof, other than taking requests off the accept queue with the listener thread for the <Connector>. If connection requests arrive at the NIC fast enough to fill up the accept queue, excess ones are simply rejected by the OS. - Chuck
