[rrd-users] Time issue with graphs

Dirk Bulinckx dirk at woodstone.nu
Tue Nov 4 12:06:52 MET 2003


I'll start by introducing myself.  I'm the author of an Win32 based
network monitoring tool called Servers Alive.  We just started adding
RRDTool logging to Servers Alive and are seeing a problem with it.

Servers Alive is logging to the RRDTool "database", however the graphs
only show a start of the logging one hour later then the time at which
we started.

	started logging at 10:10AM
	graph shows entries from 11:10AM on.
Example of an UPDATE that was done at 12:03PM:
	C:\data\RRD\src\tool_release\rrdtool.exe update
c:\data\rrd\database\sa_1.rrd 1067947382:1.6

Graph is created with the following command:
C:\data\RRD\src\tool_release\rrdtool.exe graph  hour_sa_1.gif -s -3600
--title="Telenet gateway" DEF:sa_1=sa_1.rrd:roundtrip:MAX
LINE1:sa_1#0000FF:"Response Time"

Database creaed with the following command:
C:\data\RRD\src\tool_release\rrdtool.exe create
c:\data\rrd\database\sa_1.rrd -s 10 DS:roundtrip:GAUGE:720:U:U

(we add a new sample every 10 seconds in this example)

Any ideas?


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