On 21 Jun 12:20, Julian v.d Berkmortel wrote: > Thank you, this works like a charm! > > Op vrijdag 18 juni 2021 om 19:57:42 UTC+2 schreef Julien Pivotto: > > > On 18 Jun 10:24, Julian v.d Berkmortel wrote: > > > Right now I'm scraping metrics from a Node Exporter. Some of the metrics > > > which the Node Exporters exports have a `mountpoint` label. > > > > > > I'd like to drop time series that have this label and **do not** match a > > > regular expression. I tried using the `keep` action (as I'd like to keep > > > time series that **do** match this regular expression) but this also > > drops > > > all other metrics that do not have the `mountpoint` label. > > > > > > "metric_relabel_configs: > > > - source_labels: ['mountpoint'] > > > regex: '(\/home|\/var\/domains)\/something.*' > > > action: keep" > > > > Can you try: > > > > metric_relabel_configs: > > - source_labels: ['mountpoint'] > > regex: '((\/home|\/var\/domains)\/something.*)|' > > action: keep"
Since I forgot to explain it: An empty label and a missing label are the same in prometheus. By isolating the first part of the regex with () and adding | at the end of the regex, we make sure that it matches the first part OR it is missing (regexes are anchored in prometheus). The added | at the end means "or empty"). > > > > > > > > I tried using the `drop` action too but this requires me to inverse the > > > regular expression using a negative-lookahead (which isn't supported > > > because Prometheus is written in Go of course). > > > > > > What are my options in this? > > > > > > **Important,** I do not have control over the way the Node Exporter is > > > configured, thus I can't configure the Node Exporter itself to not > > export > > > metrics for some specific mountpoint (if this is even possible). > > > > > > -- > > > 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/e2bf0768-8213-4c35-b0e0-4c03395ffdc6n%40googlegroups.com > > . > > > > > > -- > > Julien Pivotto > > @roidelapluie > > > > -- > 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/13f6d9be-0db2-4bee-8098-5ffc04e4dd04n%40googlegroups.com. -- Julien Pivotto @roidelapluie -- 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/20210621221132.GA955477%40oxygen.
