Importers of pkg/exporter may not want for series to be imported into
the default registry. This commit makes it possible to provide a custom
registry for metrics registration.
Signed-off-by: Robert Fratto <robertfratto@gmail.com>
This commit fixes the case when the metric is not present in rm (registered metric) then LastRegisteredAt and TTL are initialized twice. Firstly, LastRegisteredAt is initialized with the time.Time's zero value and then with clock.Now(). Plus, TTL is initialized with the same value twice.
Signed-off-by: subham sarkar <subham.sarkar@guavus.com>