False alarms due to corrupt client data?

[Thomas Kähn <tkaehn (at) netcologne.de>]

Hi,

during the last month our Xymon server (Debian package from backports
4.3.0~beta2.dfsg-5~bpo50+1.1) reports false alarms from time to time.

The alarm page always shows a couple of ] inserted into the clients
output:
...
Mon Jan 10]15:00:07 CET 2011 - Filesystems NOT ok

red 16% / (54448692% used) has reached the PANIC level (90%)
red 0% /lib/init/rw (1742112% used) has reached the PANIC level (90%)
red 8% /dev (9496% used) has reached the PANIC level (90%)
red 0% /dev/shm (1742112% used) has reached the PANIC level (90%)

Filesystem      
 ]1024-blocks      Used Available Capacity Mounted on
/dev/sda2             68025748  10121476  54448692      16% /
tmpfs                  1742112         0   1742112       0% /lib/init/rw
udev                     10240       744      9496       8% /dev
tmpfs                  1742112         0   1742112       0% /dev/shm
...

In contrast to this the client data file looks fine:
...
[who]
[df]
Filesystem         1024-blocks      Used Available Capacity Mounted on
/dev/sda2             68025748  10121476  54448692      16% /
tmpfs                  1742112         0   1742112       0% /lib/init/rw
udev                     10240       744      9496       8% /dev
tmpfs                  1742112         0   1742112       0% /dev/shm
[mount]
...

I've seen that a couple of Xymon users reported similar errors
from time to time. However I didn't find a solution. We already tried
to increase the data/message size, but this didn't solve the
problem.

Best regards
Thomas Kähn
-- 
Thomas Kähn
Technik, Network Engineering & Design; Content Delivery Platform & IP
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