HaProxy logs showing the TCP health check failed alerts

Solution Verified - Updated -

Issue

  • TCP health check is failing
  • Lots of HaProxy alerts messages are showing in the logs.
Apr 12 15:32:21 localhost haproxy[1234]: [WARNING]  (6361) : Server frontend-HaProxy/frontend-HaProxy-localhost.example.com is DOWN, reason: Layer4 connection problem, info: "Connection refused at initial connection step of tcp-check", check duration: 1ms. 1 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.

Apr 12 15:32:21 localhost haproxy[1234]: [WARNING]  (6361) : Server frontend-HaProxy/frontend-HaProxy-localhost.example.com is DOWN, reason: Layer4 connection problem, info: "Connection refused at initial connection step of tcp-check", check duration: 1ms. 0 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.

Apr 12 15:47:24 localhost haproxy[1234]: Server frontend-HaProxy/frontend-HaProxy-localhost.example.com is DOWN, reason: Layer4 connection problem, info: "Connection refused at initial connection step of tcp-check", check duration: 1ms. 1 active and 0 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.

Environment

  • Red Hat Enterprise Linux (All Versions)
  • HaProxy

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