trends graph stop graphing

[Bryan A Kennedy]

Hi.  We are running Hobbit v4.2.0 on a Red Hat Ent Linux WS rel 4 server.
We have been running it for about two years without any issues (Great
tool!).  A month and a half ago, the trends graphs stopped graphing.  I
restart Hobbit/Xymon and the graphs start working for a few hours, then
stop.  The issue is with the status channel graphs.  The memory used by
this process starts low as expected, then continues to grow until I restart
it again.  A process listing of that process shows

hobbit   24705  0.0 27.1 1099080 1095804 ?   S    03:05   0:00
hobbitd_channel --channel=status --log=/home/hobbit/logs/rrd-status.log
hobbitd_rrd --rrddir=/home/hobbit/data/rrd

It is using 27.1% of the memory (4GB total memory) and I just restarted
Hobbit/Xymon 8 hours ago.  I have upgraded the kernel on the server, and
tried various debugging options.  I have tried removing changes that
happened around the time of the graphing stop, but nothing has shown the
issue.

Looking in the rrd-status.log I do see entries with garbled data
2009-01-21 11:19:11 Bad data in channel, skipping it
2009-01-21 11:19:11 Dropping (more) garbled data
2009-01-21 11:22:35 Bad data in channel, skipping it
2009-01-21 11:22:35 Dropping (more) garbled data

I am at a loss as to what the problem is.  I do plan an upgrade to Xymon
v4.2.2, but wanted to see if I could fix this issue first.
Any help would be greatly appreciated.  Thank you in advance for your time.


Regards,

Bryan Kennedy