Error node_exporter 0.18.1_1

dff

Hi,

Big thanks for adding this package!

Netgate XG-7100
21.02-RELEASE (amd64)
node_exporter 0.18.1_1

No logs from the first installation, however when trying to use the webui to enable node_exporter the page turns blank.

In system.log

Feb 19 11:19:35 firewall check_reload_status[387]: Syncing firewall
Feb 19 11:19:35 firewall php-fpm[58710]: /pkg_edit.php: ERROR: Could not open {/usr/local/etc/rc.conf.d/node_exporter} for writing

I deinstall and try to reinstall from the webui

Loading package instructions...
Custom commands...
Executing custom_php_install_command()...=====
Message from node_exporter-1.0.1:

--
If upgrading from a version of node_exporter <0.15.0 you'll need to update any
custom command line flags that you may have set as it now requires a
double-dash (--flag) instead of a single dash (-flag).
The collector flags in 0.15.0 have now been replaced with individual boolean
flags and the -collector.procfs` and -collector.sysfs` flags have been renamed
to --path.procfs and --path.sysfs respectively.
>>> Cleaning up cache... done.
Success

In system.log

Feb 19 12:01:32 firewall php[70253]: /etc/rc.packages: Beginning package installation for node_exporter .
Feb 19 12:01:32 firewall check_reload_status[387]: Syncing firewall
Feb 19 12:01:32 firewall check_reload_status[387]: Syncing firewall
Feb 19 12:01:32 firewall php[70253]: /etc/rc.packages: ERROR: Could not open {/usr/local/etc/rc.conf.d/node_exporter} for writing

The package does not show under the services menu in the webui (it did during the first install)
Advise is very welcome! : )

vukuze

I am not some kind of pfSense guru and my advice may be wrong, but here is my solution of the same problem:

mkdir -p /usr/local/etc/rc.conf.d
cp /usr/local/etc/rc.d/node_exporter /usr/local/share/pfSense-pkg-node_exporter/node_exporter.sh

thedude42

There seems to be some pretty significant issues with this package. For one thing, when I ran in to this problem the first thing I tried was re-installing the package. Now the Node_exporter menu is gone from the list of Services drop-down menu. Removing and then reinstalling the package doesn't bring it back.

Manually addressing the error messages that seem to be related to missing files doesn't really help, and indicate there may be some other quality issues with this package on pfsense.

vukuze

@thedude42 , Maybe. My solution is of course temporary and based on system logs.
BTW after these two commands, I see node_exporter in the menu again and everything works for me.

dff

@vukuze
@thedude42

Hopefully this gets sorted : )

Issue 11515

cukal

I had to install, execute the 2 cmd's, deinstall & reinstall and now it's running and visible in the menu

dison4linux

I had the exact same mileage but I was hoping an update would come available rather than trying the hacks above, plus the bundled version of node_exporter is several revs behind upstream.
Is there a way to file an official bug with the package maintaner?

viktor_g

@dison4linux said in Error node_exporter 0.18.1_1:

I had the exact same mileage but I was hoping an update would come available rather than trying the hacks above, plus the bundled version of node_exporter is several revs behind upstream.
Is there a way to file an official bug with the package maintaner?

The fixes will be in the next update:
https://redmine.pfsense.org/issues/11515#note-6

nihunter

In 2.5.x node_exporter once showed in service drop down. Now it doesn't and now 2.6.0 Updating OS didn't help. Same issue is showing up for Wireguard. I don't believe this is a NExport specific issue.

I installed Wireguard today. The VPN dropdown didn't update till a system reboot. Then shortly after maybe a reboot or such. It doesn't show up in the VPN drop down.

Has anyone done a scratch install and see if this issue is from eventual use or if this straight out of the box?

cube8021

@cukal I ended up just uninstalling and reinstalling to resolve the issue.

nihunter

@cube8021 No dice on my side.

nihunter

@cube8021 If go to /pkg_edit.php?xml=node_exporter.xml

because I can find the button. I get this when I save.

Warning: file_put_contents(/usr/local/etc/rc.conf.d/node_exporter): failed to open stream: No such file or directory in /usr/local/pkg/node_exporter.inc on line 50

A Former User

@vukuze said in Error node_exporter 0.18.1_1:

I am not some kind of pfSense guru and my advice may be wrong, but here is my solution of the same problem:
mkdir -p /usr/local/etc/rc.conf.d
cp /usr/local/etc/rc.d/node_exporter /usr/local/share/pfSense-pkg-node_exporter/node_exporter.sh

My node_exporter 0.18.1_2 on pfsense 2.5.1 gave me the same could not open error. I used these commands verbatim and after reboot the service started up and the metrics were exposed as expected. Thank you