[hobbit] RRD log errors

[Tom Georgoulias]

McGraw, Robert P wrote:
> Every five minutes and I am getting the following in the rrd-status.log.

> 2008-06-04 13:20:59 RRD error updating
> /local/hobbit420/data/rrd/peano.math.purdue.edu/la.rrd from 128.210.3.244:
> illegal attempt to update using time 1212600059 when last update time is
> 1212600059 (minimum one second step)

I upgraded to xymon 4.2.2 this morning and am seeing similar errors in 
rrd-data.log for various processes and ports RRD files.  The graphs work 
properly so the data is being stored, and the error persists even if I 
delete one of the rrd files in question.

I'm using rrdtool 1.2.23.

Anyone figured out how to correct this?  I found lots of postings 
describing this problem, but none that contained a solution.

Tom