vuori opened a new issue, #11907:
URL: https://github.com/apache/trafficserver/issues/11907
As far as I understand from the documentation, hosts that are unresponsive
are supposed to be marked as "down" in hostdb and retried according to the
`connect_attempts_max_retries_down_server` setting. However with the following
steps this does not seem to be happening:
1. Attempt to make a forward-proxied request to a host that is not
responding at all (error is `ETIMEDOUT`).
2. Note in trace log that `connect_attempts_max_retries` attempts are made.
3. Try the same request again.
4. `connect_attempts_max_retries` attempts are still made, the count never
goes down to `connect_attempts_max_retries_down_server`.
In particular if the latter is set to 0, ATS still always tries to connect
and the trace message `Not connecting to the server because it is marked down`
from `HttpSM.cc` never appears.
Is this a bug or am I misunderstanding how hostdb is supposed to work?
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