TCP Connections Events per Second

Gatling (Open-Source)
#1

Hi All,

While executing in Gatling frontline, I am watching injector’s health, there i could see in “TCP Connections Events per Second” section, huge number of active opening and very less number of established.

For eg: active openings i could see as 27 per sec and established one is less than 1 per sec.

Can some one explain what does active opening means? is it already established connection or requests are waiting for connections? and also what does established stands for?

Regards,

#2

Hi,

The proper place for questions related to FrontLine (I guess on the AWS MarketPlace) is the dedicated Service Desk.
Please look for “support” on the AWS Marketplace page.

active openings = client tries to open a TCP connection (sends a SYN).
established = open connections

It looks like your injectors can’t open connections to your system under load.
Possible causes:

  • wrong subnet or security groups configuration
  • anti DDoS protections.
    Regards