Hmm, so the blackbox exporter is gracefully closing its half of the connection with a FIN. I'd say what's happening is that the blackbox exporter is closing its end connection as it no longer cares about the connection at all, then some additional data is received which causes it to RST as it never reads anything in this scenario. Given this is telnet, I'd suggest using the query_response feature to close the connection at the telnet level or just eat that response.
Brian On Fri, 8 May 2020 at 13:40, David Aylward <[email protected]> wrote: > ts=2020-05-08T12:29:52.877070815Z caller=main.go:116 module=tcp_connect > target=100.100.0.39:23 level=info msg="Beginning probe" probe=tcp > timeout_seconds=9.5 > ts=2020-05-08T12:29:52.87760679Z caller=utils.go:42 module=tcp_connect > target=100.100.0.39:23 level=info msg="Resolving target address" > preferred_ip_protocol=ip6 > ts=2020-05-08T12:29:52.877828711Z caller=utils.go:52 module=tcp_connect > target=100.100.0.39:23 level=warn msg="Resolution with preferred IP > protocol failed, attempting fallback protocol" fallback_protocol=ip4 > err="address 100.100.0.39: no suitable address found" > ts=2020-05-08T12:29:52.877996813Z caller=utils.go:65 module=tcp_connect > target=100.100.0.39:23 level=info msg="Resolved target address" > ip=100.100.0.39 > ts=2020-05-08T12:29:52.878092926Z caller=tcp.go:55 module=tcp_connect > target=100.100.0.39:23 level=info msg="Dialing TCP without TLS" > ts=2020-05-08T12:29:52.943090024Z caller=tcp.go:99 module=tcp_connect > target=100.100.0.39:23 level=info msg="Successfully dialed" > ts=2020-05-08T12:29:52.943316164Z caller=main.go:127 module=tcp_connect > target=100.100.0.39:23 level=info msg="Probe succeeded" > duration_seconds=0.065955569 > > > > Metrics that would have been returned: > # HELP probe_dns_lookup_time_seconds Returns the time taken for probe dns > lookup in seconds > # TYPE probe_dns_lookup_time_seconds gauge > probe_dns_lookup_time_seconds 0.000272136 > # HELP probe_duration_seconds Returns how long the probe took to complete > in seconds > # TYPE probe_duration_seconds gauge > probe_duration_seconds 0.065955569 > # HELP probe_failed_due_to_regex Indicates if probe failed due to regex > # TYPE probe_failed_due_to_regex gauge > probe_failed_due_to_regex 0 > # HELP probe_ip_protocol Specifies whether probe ip protocol is IP4 or IP6 > # TYPE probe_ip_protocol gauge > probe_ip_protocol 4 > # HELP probe_success Displays whether or not the probe was a success > # TYPE probe_success gauge > probe_success 1 > > > > Module configuration: > prober: tcp > > On Friday, 8 May 2020 14:03:45 UTC+2, Brian Brazil wrote: >> >> On Fri, 8 May 2020 at 12:52, David Aylward <[email protected]> >> wrote: >> >>> HI, >>> >>> We using BlackBox to do our monitoring. >>> We've noticed that when BlackBox is pointed at telnet or SNTP with the >>> TCP module it closes the connection with a reset instead of a graceful >>> close, which it does for other TCP ports. These resets show up as errors in >>> our other systems, is there a config or something we can add to have this >>> close with a fin and not a reset. >>> >> >> Can you share the debug output? >> >> -- >> Brian Brazil >> www.robustperception.io >> > > <https://sacoronavirus.co.za/> > > -- > 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/f26d012e-681c-4b93-b4d4-cc17800ada51%40googlegroups.com > <https://groups.google.com/d/msgid/prometheus-users/f26d012e-681c-4b93-b4d4-cc17800ada51%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Brian Brazil www.robustperception.io -- 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/CAHJKeLrKNTz%2B7nogZNACVeAVpG4Jb1c9oEWNKdNXxp_6n-yoPA%40mail.gmail.com.
