While the irate() function is useful for granular graphs, it is not suitable for alerting.
alerting
All posts tagged alerting
Combining alert conditions
Brian Brazil March 27, 2017Prometheus alerts use the same powerful PromQL expressions as queries and graphs. This can be used to produce sophisticated alerts.
read moreBooleans, logic and math
Brian Brazil March 6, 2017Prometheus doesn’t have an explicit boolean type or functionality. However there is a convention and enough power in PromQL to work with booleans.
read moreUsing labels to direct email notifications
Brian Brazil February 13, 2017A handy feature of the Alertmanager is that almost all notification fields are templatable. This can be used to route emails based on labels.
read moreNew Features in Prometheus 1.4.0
Brian Brazil November 28, 2016What’s “up” Doc?
Brian Brazil November 14, 2016One of the advantages of pull-based monitoring such as Prometheus is that you can tell if the target is healthy as part of the scrape. How do you do that though?
read moreNew Features in Prometheus 0.17.0
Brian Brazil March 17, 2016Prometheus 0.17.0 was recently released with 394 commits since 0.16.2, let’s see what the big changes are.
read moreAudio Alerting with Prometheus
Brian Brazil September 21, 2015Prometheus offers integrations with systems like PagerDuty, Email and Hipchat for alert notifications – but what if you want do something that’s not supported out of the box? The Alertmanager’s generic web hook has got you covered.
read moreGet alerted before your SSL certificates expire
Brian Brazil September 7, 2015The most common way to learn about the expiry date of your website’s SSL certificate is after it has expired. The blackbox exporter combined with Prometheus can let you know well in advance, letting you renew your certificate before users complain.
read moreAlerting on Down Instances
Brian Brazil September 1, 2015Knowing which instances of your services and which machines in your fleet are no longer responding is a common requirement. Whether it’s to get someone to investigate or to drive automation, in this post I’ll look at how you can do it with Prometheus.
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