Hi !
Thanks to your help, my problem seem to be solved.
https://code-examples.net/en/q/16962c
http://www.tldp.org/HOWTO/html_single/TCP-Keepalive-HOWTO/
You were right.
The problem of disconnections after some wait time was due to some
timeouts parameters.
In the "default" section, there was :
timeout connect 5000
timeout client 50000
timeout server 50000
I have replaced the values of "timeout client" and "timeout server" :
timeout client 30m
timeout server 30m
Thus, as my IoT devices send data every 15 minutes maximum, a timeout of
30 minutes should be good. No ?
Also, I have added a "KeepAlive" option on the client socket (in my java
program).
I would like to thanks you all for your help.
I will continue to learn more about HAProxy.
Sincerely,
Axel DUMAS.
PS : For futures questions, I will take care to give you more
information. ^^
PS 2 : If you have any additional comments to make, I am always okay to
take them. :)