Thanks. I always forget that labels starting with __ are automatically dropped after target relabelling, but not metric relabelling.
On Monday 11 March 2024 at 20:49:42 UTC Ben Kochie wrote: > The other way you can do this is with the "__tmp_keep" pattern. This is > where you positively tag the metrics you want to keep, and then use a drop > that matches that temporary label doesn't exist. > > metric_relabel_configs: > - source_labels: [__name__, name] > regex: 'node_systemd_.*;(ssh|apache).*' > target_label: __tmp_keep > replacement: yes > - source_labels: [__tmp_keep,__name__] > regex: ';node_systemd_.*' > action: drop > - regex: __tmp_keep > action: labeldrop > > On Monday, March 11, 2024 at 9:43:27 PM UTC+1 mel wrote: > >> You are absolutely correct but I don't have access to a lot of the >> servers so I am trying to drop them on the prometheus side >> >> On Monday, March 11, 2024 at 1:39:18 PM UTC-7 Ben Kochie wrote: >> >>> relabel actions are exclusive. Drop means keep everything but X. Keep >>> means drop everything but X. >>> >>> For your exact problem, there is already a node_exporter flag to handle >>> this. >>> >>> ./node_exporter --collector.systemd.unit-include="(ssh|apache)" >>> >>> This will also be more efficient because it it will only gather data >>> about those two units. >>> >>> On Monday, March 11, 2024 at 9:27:30 PM UTC+1 mel wrote: >>> >>>> Hello I am using node_exporter and I am trying to drop all >>>> node_systemd_unit_state metrics except for a handful of services like >>>> (e.g.,) ssh and apache. How would I do this? I came up with the following, >>>> but I don't think this is correct because it will drop other metrics as >>>> well (metrics that are not related to systemd service) >>>> >>>> metric_relabel_configs: >>>> - source_labels: [__name__, name] >>>> regex: 'node_systemd_unit_state;(ssh|apache).*' >>>> action: keep >>>> >>>> How do I drop all service metrics except for ssh and apache service? >>>> >>> -- 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/0778c04a-56e4-4090-a918-50cc7db0f7ean%40googlegroups.com.
