Keep Getting "collectd: rrdcached plugin: Failed to Connect RRDCached at unix...." errors in my syslog

keeks12 · 11. April 2022

Hi OMV forum,

I am posting today as I have tried a couple brief attempts to solved this issue to no avail.

I am continuously getting errors in my log for the rrdcached plugin. I looked at a couple posts in the forum and ran omv-firstaid to try solve but the issue persists.

This is the error message in my logs:

Code

collectd[1405]: rrdcached plugin: Failed to connect to RRDCacheD at unix:/run/rrdcached.sock: Unable to connect to rrdcached: Connection refused (status=111)

I ran omv-firstaid and did "Check RRD database" which gives me about 76 requests to remove rrd files that contain timestamps in the future? Not sure what is going on (probably too much of a newb) but even when I delete them with omv-firstaid they still seem to appear if I run the tool again.

Any help is appreciated, I am running OMV version 5.6.26-1 (Usul)

Thank you!

macom · 11. April 2022

Check the time on the server and post the output of

systemctl status chrony

keeks12 · 13. April 2022

thanks for the help macom

here is the output of the command, the time on the server looks to be correct when I run timedatectl

Code

● chrony.service - chrony, an NTP client/server
   Loaded: loaded (/lib/systemd/system/chrony.service; enabled; vendor preset: enabled)
   Active: active (running) since Sun 2022-04-10 20:06:38 EDT; 2 days ago
     Docs: man:chronyd(8)
           man:chronyc(1)
           man:chrony.conf(5)
 Main PID: 8056 (chronyd)
    Tasks: 2 (limit: 4915)
   Memory: 1.2M
   CGroup: /system.slice/chrony.service
           ├─8056 /usr/sbin/chronyd -F -1
           └─8057 /usr/sbin/chronyd -F -1

Apr 10 20:06:38  systemd[1]: Starting chrony, an NTP client/server...
Apr 10 20:06:38  chronyd[8056]: chronyd version 3.4 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +SCFILTER +SIGND +ASYNCDNS +SECHASH +IPV6 -DEBUG)
Apr 10 20:06:38  chronyd[8056]: Frequency 62.802 +/- 0.040 ppm read from /var/lib/chrony/chrony.drift
Apr 10 20:06:38  chronyd[8056]: Loaded seccomp filter
Apr 10 20:06:38  systemd[1]: Started chrony, an NTP client/server.
Apr 10 20:06:43  chronyd[8056]: Selected source 129.250.35.251

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macom · 13. April 2022

Yes, looks fine. I was mislead anyway.

Try to disable and enable monitoring in the GUI of OMV and check if there are any error messages.

keeks12 · 13. April 2022

Ok I gave that a try, will give it a little time and see if the issue clears up, then report back.

keeks12 · 24. April 2022

looks like that did the trick so far. As always, appreciate the help macom

Konsti · 24. November 2024

Just to post after some time here, even on OMV 7 for some reason I realised these errors were in the journal, and the tip by macom to disable, save, wait, enable, save "Monitoring" in the GUI of OMV worked.

Code

% journalctl -p 3 -xb

[...]

Nov 24 16:32:55 qvo-nas collectd[1197]: rrdcached plugin: Failed to connect to RRDCacheD at unix:/run/rrdcached.sock: Unable to connect to rrdcached: No such file or directory (status=2)
Nov 24 16:32:55 qvo-nas collectd[1197]: rrdcached plugin: Failed to connect to RRDCacheD at unix:/run/rrdcached.sock: Unable to connect to rrdcached: No such file or directory (status=2)
Nov 24 16:32:55 qvo-nas monit[1160]: 'rrdcached' failed to start (exit status 0) -- no output
Nov 24 16:32:56 qvo-nas monit[1160]: HttpRequest: error -- client []: HTTP/1.0 400 There is no service named "collectd"
Nov 24 16:32:56 qvo-nas monit[3759]: There is no service named "collectd"
Nov 24 16:33:56 qvo-nas monit[1160]: 'rrdcached' process is not running
Nov 24 16:33:57 qvo-nas monit[1160]: 'collectd' process is not running

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Running systemctl status monit.service in CLI before and after this action, shows the resolution of this.

Code

% systemctl status monit.service

● monit.service - LSB: service and resource monitoring daemon
     Loaded: loaded (/etc/init.d/monit; generated)
     Active: active (running) since Sun 2024-11-24 16:23:24 CET; 1h 17min ago
       Docs: man:systemd-sysv-generator(8)
      Tasks: 3 (limit: 8964)
     Memory: 4.5M
        CPU: 8.426s
     CGroup: /system.slice/monit.service
             └─1160 /usr/bin/monit -c /etc/monit/monitrc

Nov 24 16:34:06 qvo-nas monit[1160]: Reinitializing Monit -- control file '/etc/monit/monitrc'
Nov 24 16:34:06 qvo-nas monit[4335]: Reloading daemon monitor configuration: monit.
Nov 24 16:34:06 qvo-nas systemd[1]: Reloaded monit.service - LSB: service and resource monitoring daemon.
Nov 24 16:34:06 qvo-nas monit[1160]: 'collectd' unmonitor on user request
Nov 24 16:34:06 qvo-nas monit[1160]: Monit daemon with PID 1160 awakened
Nov 24 16:34:06 qvo-nas monit[1160]: 'qvo-nas' Monit reloaded
Nov 24 16:34:09 qvo-nas monit[1160]: 'collectd' monitor on user request
Nov 24 16:34:09 qvo-nas monit[1160]: Monit daemon with PID 1160 awakened
Nov 24 16:34:09 qvo-nas monit[1160]: Awakened by User defined signal 1
Nov 24 16:34:09 qvo-nas monit[1160]: 'collectd' monitor action done

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Thanks again macom

Keep Getting "collectd: rrdcached plugin: Failed to Connect RRDCached at unix...." errors in my syslog

Jetzt mitmachen!

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