Honor dns TTL

[Savemech]

Hi there, i'm facing sometime follow issue:
blackbox_exporter log:

WARN[0675] Error for HTTP request to https://somefancyhost.com/home: Get https://somefancyhost.com/home: dial tcp4: lookup somefancyhost.com on some-dns-server:53: no such host  source=http.go:164
WARN[0675] Error for HTTP request to https://somefancyhost.com/home: Get https://somefancyhost.com/home: dial tcp4: lookup somefancyhost.com on some-dns-server:53: no such host  source=http.go:164
WARN[0675] Error for HTTP request to https://somefancyhost.com/home: Get https://somefancyhost.com/home: dial tcp4: lookup somefancyhost.com on some-dns-server:53: no such host  source=http.go:164
WARN[0675] Error for HTTP request to https://somefancyhost.com/home: Get https://somefancyhost.com/home: dial tcp4: lookup somefancyhost.com on some-dns-server:53: no such host  source=http.go:164
WARN[0675] Error for HTTP request to https://somefancyhost.com/home: Get https://somefancyhost.com/home: dial tcp4: lookup somefancyhost.com on some-dns-server:53: no such host  source=http.go:164

dig output:

somefancyhost.com.  3600    IN      A       10.0.0.2

Any chance to get some cache for dns queries and honor DNS record TTL, to not bomb dns server with requests, while measuring http/tcp?

[brian-brazil]

We're using standard DNS lookup mechanisms. If you want caching I'd suggest checking your local resolver.

[Savemech]

Assuming that, you're guys don't want implement dns caching as feature?

[brian-brazil]

That's the responsibility of the local resolver, it's not for individual applications to have to re-implement.

[Savemech]

Thank you for explanation