diskstats error: Can't use an undefined value as a HASH reference at /etc/munin/plugins/diskstats line 120
|Reported by:||blueyed||Owned by:||nobody|
I am getting the following error from the diskstats plugin:
2011/03/12-01:26:45  Error output from diskstats: 2011/03/12-01:26:45  Can't use an undefined value as a HASH reference at /etc/munin/plugins/diskstats line 120. 2011/03/12-01:26:45  Service 'diskstats' exited with status 255/0.
This happens probably since a long time already, but I have not noticed it since the multigraphing has been broken anyway.
The line in question appears to be: http://munin-monitoring.org/browser/branches/1.4-stable/plugins/node.d.linux/diskstats.in#L120
Unfortunately I cannot decrypt this Perl really.
The plugin runs on a hardware node (OpenVZ). It has returned some values successfully (months) ago.