I have a few random
Health check for server xxx failed, reason: Layer7 invalid response, info: "TCPCHK got an empty response at step 1", check duration: 0ms, status: 2/3 UP. which sometimes bring down my nodes (after 3 failed tries).
On the node, I see no connection attempts, and the
0ms looks strange (usually it’s in the XXms range).
Any ideas how I can figure out what’s going on?
(i would get one failure every 10-30 in or so, every 2-3 days i get 3 in a row, so nodes go down, then back up)
HAproxy 2.3 config:
backend xxxxx log global mode http option httpchk http-check send meth GET uri /ping.php ver HTTP/1.0 hdr Host example.com option http-server-close option httpclose no option httpclose balance roundrobin server a 184.108.40.206:83 check inter 2000 rise 2 fall 3 check weight 12 maxconn 2024 cookie