Hi. I'm currently debugging DNS Lookup warnings (more that 3 sec) and need to figure out whether our network/our DNS/or exporter is misbehaving. So I'm checking ssh endpoints with tcp module:
[image: 2022-08-25_13-22-13.png] but experience 3+ seconds delay on resolving ssh hostnames, which triggers alerts DNSLookupDuration3s. [image: 2022-08-25_13-26-19.png] problem looks something like this on different hosts - 3.0s+ seconds of timeout, which looks very much like a generic tcp timeout. I checked on DNS server and yes, after UDP queries there is a TCP DNS query for A record. I don't see any UDP checksum corruption or delays for such failover. Is this intended? Can someone help me out on this. -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/16d8f137-a7e3-4361-a624-6719d71b1d29n%40googlegroups.com.
