Document what happens when target has multiple addresses

SuperQ / smokeping_prober

Prometheus style smokeping

Apache License 2.0

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Open zloo opened 5 years ago

zloo commented 5 years ago

Document what happens when target has multiple addresses.

How often do we resolve? What if the IP changes? What if there's multiple addresses? Do we ping all of them, or just the first one?

SuperQ commented 5 years ago

Currently, we resolve once on startup, and only ping one.

zloo commented 5 years ago

ok, and do we want to keep that? we should at least honor the TTL and re-resolve when it expires.

regarding pinging multiple hosts, i think it makes sense to ping all resolved hosts, and we can distinguish between them via a label.

SuperQ commented 5 years ago

I was working on an upstream change to the ping library to adjust the way it resolves. Still waiting for feedback.