On Wed, Feb 17, 2021 at 5:15 PM Stuart Clark <[email protected]> wrote:
> > Thoughts? > > Is there any reason you can't use the Blackbox Exporter as it currently > is, just decreasing the scrape interval? Prometheus can scrape as > infrequently as every 2 minutes or as frequently as several times a second. > Thanks Stuart, Decreasing the scope interval with blackbox_exporter would cause it to behave more like smokeping_prober, which is not exactly the thing I'm after. Also, smokeping_prober creates histograms from the observations, so even if you set up an ICMP check with blackbox_exporter using a very short interval, you wouldn't get the same information from it. To provide a concrete example, in terms of timestamps, with smokeping_prober you send packets at 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ... (1 packet every second, with the scrape interval be say 60 seconds). With current blackbox_exporter you could do something similar by setting the scrape interval to 1 second, but you'd get slightly different information. With what I'm proposing you'd send packets at say 0, 1, 2, 3, 4, 60, 61, 62, 63, 64, 120, 121, 122, 123, 123, ... (5 packets within 5 seconds, then wait for 55 seconds, send another 5 packets in 5 seconds, etc; the scrape interval would be 60 seconds) -- Marcelo Magallón -- You received this message because you are subscribed to the Google Groups "Prometheus Developers" 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-developers/CABiJYgZ8ZkUPJNQMcFoP%2BxPaP%3Dxe%3D4WZCH%2Bh-9AwE3b9A2XGeA%40mail.gmail.com.
