[rrd-users] LAST

Steve steve at thebloodpack.com
Mon Feb 16 12:46:38 MET 2004


I have run into a problem with aggregating lots of RRD files and getting
a  LAST result. I think I may have corrupted some of my RRD's.

I am creating an aggregate summary graph of lots of switch port inocts 
and outocts.
Using rrdcgi  I am adding up all the ports and creating a single 
agregate switch traffic graph.
This has been working fine up until recently when we had one of our 
switches go bezerk  and
I had to remove some spikes  manually by dumping the rrd's to text and 
removing all the +08's
and +09's from the files.
Now as a result of this the graphs look okay (the AREA is fine) but the 
LAST reading does
not match the AREA ??

Does the CDEF: LAST do anything other than get the last reading of each 
or is there anyway of checking the figures in an RRD are consistent ?


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