Thanks Brian for a good explanation. Will go with target relabelling. Thanks, Anoop
On Wed, Mar 2, 2022 at 9:03 PM Brian Candler <[email protected]> wrote: > Target relabelling occurs *before* the scrape takes place; metrics > relabelling occurs *after* the scrape has taken place. > > If you're just adding fixed labels to every metric, then either way will > work. However I'd expect target relabelling to be more efficient, since > it's only run once for each target, whereas metric relabelling is run once > for every individual timeseries returned in the scrape. > > Otherwise: > * If you want to set any labels which affect how the scrape is done - for > example changing the metrics_path or adding query parameters when > communicating with the exporter, or changing the address or port scraped - > then this has to be done in target relabelling. > * If you want to label some returned timeseries differently to others, or > selectively drop timeseries, then this has to be done in metric relabelling. > > > On Wednesday, 2 March 2022 at 15:01:57 UTC Anoop wrote: > >> Thank you so much Brian. The "*relabel_configs*" worked for me. >> >> I tried "*metric_relabel_configs*" also with the below configuration and >> this is also adding the new label with all metrics. Not sure if this is the >> correct method though :) >> >> metric_relabel_configs: >> - source_labels: [__name__] >> target_label: foo >> replacement: bar >> >> I am going to use "*relabel_configs*" anyway. However, I'm just curious >> whether we can use the "*metric_relabel_configs*" method also? Will it >> make any issue? >> >> Thanks, >> >> >> >> >> >> >> Thanks & Regards, >> >> Anoop Mohan >> >> Mob# +91-7293009486 <+91%2072930%2009486> >> E-mail : [email protected] >> >> >> On Wed, Mar 2, 2022 at 7:38 PM Brian Candler <[email protected]> wrote: >> >>> If you're using kubernetes_sd_configs >>> <https://prometheus.io/docs/prometheus/latest/configuration/configuration/#kubernetes_sd_config> >>> then I don't think you can do it this way. >>> >>> Instead, you'll need to use target relabelling: >>> >>> - job_name: foo >>> kubernetes_sd_configs: >>> ... >>> * relabel_configs:* >>> >>> * - target_label: foo replacement: bar* >>> >>> This should add {foo="bar"} to every target, and hence to every scraped >>> metric. >>> >>> Note that the SD mechanism sets lots of __meta_XXX labels on each >>> target, so there's lots of opportunity here to use these values and copy >>> them into "real" labels as required. (Labels which start with >>> double-underscore are removed after relabelling). >>> >>> On Wednesday, 2 March 2022 at 13:50:42 UTC Anoop wrote: >>> >>>> Thanks Brian for your suggestion. >>>> >>>> I am using "kubernetes_sd_configs" to discover the targets dynamically. >>>> So I just tried the below configuration, since I don't want to specify any >>>> specific targets under "static_configs". But, this is not working as >>>> expected as I can't see the custom label in the query results. >>>> >>>> static_configs: >>>> - targets: >>>> - .* >>>> labels: >>>> foo: bar >>>> >>>> Not sure if this implementation is correct or not. Please share your >>>> suggestions. >>>> >>>> Thanks >>>> >>> -- >>> >> 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/e6cc71e1-dbd0-477a-8d57-392a27d38bb8n%40googlegroups.com >>> <https://groups.google.com/d/msgid/prometheus-users/e6cc71e1-dbd0-477a-8d57-392a27d38bb8n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > 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/09f08de8-ff05-4d78-bf91-ef131d3e8854n%40googlegroups.com > <https://groups.google.com/d/msgid/prometheus-users/09f08de8-ff05-4d78-bf91-ef131d3e8854n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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/CAEQqSpf4nXDOhjpe%2BteB43tfrJEjy%2B7xqbMh_fXhViwBmzvG%3DQ%40mail.gmail.com.
