Only empty graphs in the "Performance statistics" area

rjani · Nov 5th 2022

Hello,

I have a new installation with omv 6.0.46

In the "Performance Statistics" area, all graphics are empty.

Calling omv-firstaid gives

Code

Checking all RRD files. Please wait ...
All RRD database files are valid.
ERROR: Command '['monit', 'start', 'rrdcached']' returned non-zero exit status 1.

A look into the syslog shows:

Code

Nov  4 13:01:34 omv systemd[1]: Finished Wait for Network to be Configured.
Nov  4 13:01:34 omv systemd[1]: Reached target Network is Online.
Nov  4 13:01:34 omv systemd[1]: Starting Generate the prelogin message...
Nov  4 13:01:34 omv systemd[1]: Starting LSB: start or stop rrdcached...
Nov  4 13:01:34 omv systemd[1]: Starting Samba SMB Daemon...
Nov  4 13:01:34 omv systemd[1]: Started Web Services Dynamic Discovery host daemon.
Nov  4 13:01:34 omv rrdcached[696]: Warning: Fake start-stop-daemon called, doing nothing.
Nov  4 13:01:34 omv rrdcached[688]: rrdcached started.
Nov  4 13:01:34 omv systemd[1]: Started LSB: start or stop rrdcached.
Nov  4 13:01:34 omv systemd[1]: Starting Statistics collection and monitoring daemon...
Nov  4 13:01:34 omv collectd[698]: plugin_load: plugin "cpu" successfully loaded.
Nov  4 13:01:34 omv collectd[698]: plugin_load: plugin "df" successfully loaded.
Nov  4 13:01:34 omv collectd[698]: plugin_load: plugin "interface" successfully loaded.
Nov  4 13:01:34 omv collectd[698]: plugin_load: plugin "load" successfully loaded.
Nov  4 13:01:34 omv collectd[698]: plugin_load: plugin "memory" successfully loaded.
Nov  4 13:01:35 omv avahi-daemon[502]: Leaving mDNS multicast group on interface enp3s0.IPv6 with address xxxxxx.
Nov  4 13:01:35 omv avahi-daemon[502]: Joining mDNS multicast group on interface enp3s0.IPv6 with address xxxxxx.
Nov  4 13:01:35 omv avahi-daemon[502]: Registering new address record for xxxxxxx on enp3s0.*.
Nov  4 13:01:35 omv avahi-daemon[502]: Withdrawing address record for xxxxx on enp3s0.
Nov  4 13:01:36 omv collectd[698]: plugin_load: plugin "rrdcached" successfully loaded.
Nov  4 13:01:36 omv collectd[698]: plugin_load: plugin "syslog" successfully loaded.
Nov  4 13:01:36 omv collectd[698]: plugin_load: plugin "unixsock" successfully loaded.
Nov  4 13:01:36 omv collectd[698]: plugin_load: plugin "uptime" successfully loaded.
Nov  4 13:01:36 omv collectd[698]: Systemd detected, trying to signal readiness.
Nov  4 13:01:36 omv systemd[1]: Started Statistics collection and monitoring daemon.
Nov  4 13:01:36 omv collectd[698]: Initialization complete, entering read-loop.
Nov  4 13:01:36 omv collectd[698]: 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  4 13:01:36 omv collectd[698]: read-function of plugin `rrdcached' failed. Will suspend it for 20.000 seconds.
Nov  4 13:01:36 omv collectd[698]: 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  4 13:01:36 omv collectd[698]: Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status -1.
Nov  4 13:01:36 omv collectd[698]: 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  4 13:01:36 omv collectd[698]: rrdcached plugin: Failed to connect to RRDCacheD at unix:/run/rrdcached.sock: Unable to connect to rrdcached: No such file or directory (status=2)

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As a newbie the question: what can I do to fix the error?

thx

macom · Nov 11th 2022

What does this show?

ls -al /sbin/start-stop-daemon*

votdev · Nov 12th 2022

Do you have updated your system since the installation? I am asking because OMV takes care that the start-stop-daemon is functional after each apt-get update and apt-get upgrade. See https://github.com/openmediava…d/20fix-start-stop-daemon.

rjani · Nov 12th 2022

Quote from macom

What does this show?

ls -al /sbin/start-stop-daemon*

Code

-rwxr-xr-x 1 root root    94 Nov  4 12:57 /sbin/start-stop-daemon
-rwxr-xr-x 1 root root 44232 Sep  1 05:38 /sbin/start-stop-daemon.REAL

Quote from votdev

Do you have updated your system since the installation?

Yes, an update was performed:

Code

0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Does anyone have ideas?

votdev · Nov 13th 2022

Could you please check if your system has already performed the usrmerge. Please post the output of ls -alh /sbin. OMV already takes care to remove diversions of the start-stop-daemon binary (in /usr/sbin/). But this seems not to happen on your system, so i am guessing your system has not been migrated.

rjani · Nov 14th 2022

Hmm, I have installed usrmerge, which looks quite ok.

Code

omv:/# ls -alh /sbin
lrwxrwxrwx 1 root root 8 Nov  4 12:45 /sbin -> usr/sbin

omv:/# ls -alh /usr/sbin/start-stop-daemon*
-rwxr-xr-x 1 root root  94 Nov  4 12:57 /usr/sbin/start-stop-daemon
-rwxr-xr-x 1 root root 44K Sep  1 05:38 /usr/sbin/start-stop-daemon.REAL

I am still a bit at a loss

votdev · Nov 14th 2022

Then run dpkg-divert --remove --rename /usr/sbin/start-stop-daemon and check with ls -alh /usr/sbin/start-stop-daemon*

rjani · Nov 14th 2022

Code

omv:~# dpkg-divert --remove --rename /usr/sbin/start-stop-daemon
No diversion 'any diversion of /usr/sbin/start-stop-daemon', none removed.

omv:~# ls -alh /usr/sbin/start-stop-daemon*
-rwxr-xr-x 1 root root  94 Nov  4 12:57 /usr/sbin/start-stop-daemon
-rwxr-xr-x 1 root root 44K Sep  1 05:38 /usr/sbin/start-stop-daemon.REAL

votdev · Nov 14th 2022

Quote from rjani

Code

omv:~# dpkg-divert --remove --rename /usr/sbin/start-stop-daemon
No diversion 'any diversion of /usr/sbin/start-stop-daemon', none removed.

omv:~# ls -alh /usr/sbin/start-stop-daemon*
-rwxr-xr-x 1 root root  94 Nov  4 12:57 /usr/sbin/start-stop-daemon
-rwxr-xr-x 1 root root 44K Sep  1 05:38 /usr/sbin/start-stop-daemon.REAL

What aboutthis dpkg-divert --remove --rename /sbin/start-stop-daemon?

rjani · Nov 14th 2022

Code

omv:~# dpkg-divert --remove --rename /sbin/start-stop-daemon
Removing 'local diversion of /sbin/start-stop-daemon to /sbin/start-stop-daemon.REAL'
dpkg-divert: error: rename involves overwriting '/sbin/start-stop-daemon' with
  different file '/sbin/start-stop-daemon.REAL', not allowed

votdev · Nov 14th 2022

Could you please run dpkg-divert --list and postthe output?

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