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node_exporter/examples/systemd/README.md
Fatih Degirmenci a78c5d3cd8
Update systemd example readme file (#1663) 
The readme file does not mention the need to create a folder named
/var/lib/node_exporter/textfile_collector as a step. Lack of this
folder results errors for node_exporter service which is visible
in systemd status output. These errors possibly harmless but it is
not good to have them still.

$ sudo systemctl status node_exporter
--- snipped ---
Apr 04 14:51:35 ubuntu node_exporter[14713]: level=info ts=2020-04-04T14:51:35.584Z caller=node_exporter.go:190 msg="Listening on" address=:9100
Apr 04 15:05:34 ubuntu node_exporter[14876]: level=error ts=2020-04-04T15:05:34.464Z caller=textfile.go:197 collector=textfile msg="failed to read textfile collector directory" path=/var/lib/node_exporter/textfile_collector=textfile msg="failed to read textfile collector directory" path=/var/lib/node_exporter/textfile_collector err="open /var/lib/node_exporter/textfile_collector: no such file or directory"
--- snipped ---

Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>
2020-04-06 15:32:02 +02:00

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Systemd Unit

If you are using distribution packages or the copr repository, you don't need to deal with these files!

The unit file in this directory is to be put into /etc/systemd/system. It needs a user named node_exporter, whose shell should be /sbin/nologin and should not have any special privileges. It needs a sysconfig file in /etc/sysconfig/node_exporter. It needs a directory named /var/lib/node_exporter/textfile_collector, whose owner should be node_exporter:node_exporter. A sample file can be found in sysconfig.node_exporter.