Hi Jonathan, On 3/28/20 2:20 AM, Jonathan Sloan wrote: > I seem to be having some troubling getting NE to ignore a few devices > 'sr0/sda[1-3]. I've tried multiple things to try and get this work, > exact for manually telling it to ignore sr0|sda1|sda2|sda3 etc. When > using the below command. > > | > node_exporter > --web.listen-address=0.0.0.0:9100--web.max-requests=16--collector.processes > | > > It does not ignore sda[1-3] I know sr* is not part of the standard regex > they use. But this standard regex doesn't appear to work with systemd > because the \\d chars are removed from systemd. > > | > /usr/sbin/node_exporter > --web.listen-address=0.0.0.0:9100--web.max-requests=16--collector.processes > --collector.diskstats.ignored-devices=^(sr|ram|loop|fd|(h|s|v|xv)d[a-z]|nvmed+nd+p)d+$ > --collector.filesystem.ignored-mount-points=^/(dev|proc|sys|var/lib/docker/.+)($|/)--collector.filesystem.ignored-fs-types=^(rootfs|tmpfs|autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs)$ > > | > > The issue appears to be around the char '\'. I believe systemd removes > these chars and thus you need to encode them from my googling around > with systemd-escape which I did shown below, but it still doesn't appear > to work..
One simple solution would be moving the options to a seperate file. This is what the suggested default config does: https://github.com/prometheus/node_exporter/tree/master/examples/systemd If you don't want to to this, it should still be possible to solve this within the unit file. I have posted an example below which seems to work for me. Neither the ExecStart value nor the parameter values are quoted in my case. Kind regards Christian # systemctl --version systemd 245 (245.2-2-arch) +PAM +AUDIT -SELINUX -IMA -APPARMOR +SMACK -SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid # cat /etc/systemd/system/prometheus-node_exporter.service [Unit] Description=Node Exporter [Service] User=node_exporter ExecStart=/usr/bin/prometheus-node-exporter --collector.diskstats.ignored-devices=^(ram|loop|fd|(h|s|v|xv)d[a-z]|nvme\\d+n\\d+p)\\d+$ [Install] WantedBy=multi-user.target # ps aux | grep node-exp node_ex+ 3113 0.0 0.2 1161372 15848 ? Ssl 09:50 0:00 /usr/bin/prometheus-node-exporter --collector.diskstats.ignored-devices=^(ram|loop|fd|(h|s|v|xv)d[a-z]|nvme\d+n\d+p)\d+$ -- 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/93c5859f-87cd-c9ba-1646-70c71ed419ac%40hoffmann-christian.info.
