[rrd-users] rrdtool DB and graphs

[Freddy Frouin]

Hi all,

	I've a question concerning the graph function of rrdtool. Please
	look at this part of rrdtool DB dump:

	<!-- Round Robin Database Dump -->
	<rrd>
	<version> 0001 </version>
	<step> 30 </step> <!-- Seconds -->
	<lastupdate> 984488370 </lastupdate> <!-- 2001-03-13 13:59:30 MET -->

	<ds>
		<name> CPUCpuUtil </name>
		<type> GAUGE </type>
		<minimal_heartbeat> 930 </minimal_heartbeat>
		<min> NaN </min>
		<max> NaN </max>

		<!-- PDP Status -->
		<last_ds> UNKN </last_ds>
		<value> 0.0000000000e+00 </value>
		<unknown_sec> 0 </unknown_sec>
	</ds>

	<!-- Round Robin Archives -->
	<rra>
		<cf> LAST </cf>
		<pdp_per_row> 1 </pdp_per_row> <!-- 30 seconds -->

		<cdp_prep>
			<ds><value> NaN </value>  <unknown_datapoints> 0 </unknown_datapoints></ds>
		</cdp_prep>
		<database>
		...
		<!-- 2001-03-13 13:39:30 MET --> <row><v> 1.3000000000e+01 </v></row>
			<!-- 2001-03-13 13:40:00 MET --> <row><v> 6.0000000000e+00 </v></row>
			<!-- 2001-03-13 13:40:30 MET --> <row><v> 6.0000000000e+00 </v></row>
			<!-- 2001-03-13 13:41:00 MET --> <row><v> 7.0000000000e+00 </v></row>
			<!-- 2001-03-13 13:41:30 MET --> <row><v> 7.0000000000e+00 </v></row>
			<!-- 2001-03-13 13:42:00 MET --> <row><v> 1.0000000000e+02 </v></row>
			<!-- 2001-03-13 13:42:30 MET --> <row><v> 9.0000000000e+00 </v></row>
			<!-- 2001-03-13 13:43:00 MET --> <row><v> 9.0000000000e+00 </v></row>
			<!-- 2001-03-13 13:43:30 MET --> <row><v> 5.0000000000e+00 </v></row>
			<!-- 2001-03-13 13:44:00 MET --> <row><v> 5.0000000000e+00 </v></row>
			<!-- 2001-03-13 13:44:30 MET --> <row><v> 9.0000000000e+00 </v></row>
			<!-- 2001-03-13 13:45:00 MET --> <row><v> 1.1000000000e+01 </v></row>
			<!-- 2001-03-13 13:45:30 MET --> <row><v> 1.1000000000e+01 </v></row>

	The point I want to move on foreground is at 2001-03-13 13:42:00 where
	the value is at 100 (1e+02).

	When I graph it using the "rrdtool graph" command line, even if I
	use the CF (LAST or MAX), this point never appears in my graph.
	(they are joined to this mail).

	So my question is:

	Does it be that I use a Bad CF on the creation of my rrdtool DB ?
	If yes, how can I migrate my databases ?

	Does it be a bug of rrdtool on my OS ?

	informations:
		OS:	Solaris 2.6 Generic_105181-23 sun4u sparc SUNW,Ultra-60
		rrdtool:RRDtool 1.0.24

thanks in advance,
any help appreciated,		Freddy.


-- 
Freddy Frouin
30, rue du Château des Rentiers
75013 Paris

Tél: 01 44 97 70 00
Fax: 01 44 97 70 07


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