We have enabled TLSv1.2 on Apache tomcat. We have a load balances in front of 2 apache tomcat servers that are listening on port 8443. We are having trouble accessing services through load balancer. Nothing is logged in to tomcat logs indicating any requests have received from the load balancer. However we can access tomcat servers directly using server IPs and 8443 port.
I ran a tcpdump and found out that request from the load balancer is reaching tomcat servers, however tomcat server is sending numerous re-transmission calls back to the load balancer. Would you be able to explain what these calls are ? This may help me find an answer to issue we are facing.
8 0.202358 10.230.139.215 10.231.191.254 TCP 61 [TCP Retransmission] 8443 → 7868 [PSH, ACK] Seq=1 Ack=400 Win=15544 Len=7 9 0.604389 10.230.139.215 10.231.191.254 TCP 61 [TCP Retransmission] 8443 → 7868 [PSH, ACK] Seq=1 Ack=400 Win=15544 Len=7 10 1.408390 10.230.139.215 10.231.191.254 TCP 61 [TCP Retransmission] 8443 → 7868 [PSH, ACK] Seq=1 Ack=400 Win=15544 Len=7
