HaProxy 2.2.9: Resolvers setting status to maintenance

Hi guys,

Aiming to solve the issue where Haproxy would only resolve the DNS during the startup instead of “on the run”, I created a new Google Cloud VM running HaProxy 2.2.9.

I did set the resolve block:

resolvers pc-dns
    nameserver pcdns     "Google Internal DNS Resolver IP"
    resolve_retries    30
    timeout retry	1s
    hold valid         5s

Then add at the of each backend server:
....... check port 80 inter 1s fall 1 rise 3 resolvers pc-dns

I have tried both:

resolvers  pc-dns
  nameserver dns1 "Google Internal DNS Resolver IP":53
  hold valid           5s

and

resolvers pc-dns
  parse-resolv-conf
  hold valid           10s

But I ended up with the same result. After 40s or so, the backend servers are set to MAINT.
But the servers are up and running

I appreciate any suggestion.

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