Jesse Becker wrote:
> This is subtle, actually, and requires some background The RRD files
> are created by gmetad when received (gmetric sends the information as
> defined in gmond.conf, gmetric picks that information up from gmond).
> Metrics sent via gmetric also have a "slope" attribute defined as
> follows:
> -s, --slope=STRING Either zero|positive|negative|both (default=`both')
>
> If you dig around in the gmetad code, there's a very short section
> that determines if GAUGE or COUNTER will be used, and it uses this
> "slope" attribute. Specifically, COUNTER is used for slope=positive,
> and GAUGE for everything else.
>
> So, try using --slope=positive when you call gmetric. (Technically,
> you might need to call it only once when the rrd is created.)
>
I'm sorry to report that this did not work for me. Executed the
following commands and all created RRDs set to GAUGE with an large
initial value. This messes up scaling in the graphs and will involve
explanations to those who will read the data.
Can anybody see from my examples below why I am not getting anywere?
I'm using Ganglia 3.0.6-1.el5.
Thanks,
</edg>
From history:
gmetric -nweb_test -v 100 -t int32 -uHits --slope=positive
gmetric -nweb_test_n -v 100 -t int32 -uHits --slope=negative
gmetric -nweb_test_z -v 100 -t int32 -uHits --slope=zero
gmetric -nweb_test_b -v 100 -t int32 -uHits --slope=both
web_test_b.rrd
<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
<step> 15 </step> <!-- Seconds -->
<lastupdate> 1224268687 </lastupdate> <!-- 2008-10-17 11:38:07
PDT -->
<ds>
<name> sum </name>
<type> GAUGE </type>
<minimal_heartbeat> 120 </minimal_heartbeat>
<min> NaN </min>
<max> NaN </max>
<!-- PDP Status -->
<last_ds> 100 </last_ds>
<value> 7.0000000000e+02 </value>
<unknown_sec> 0 </unknown_sec>
web_test_n.rrd
<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
<step> 15 </step> <!-- Seconds -->
<lastupdate> 1224268687 </lastupdate> <!-- 2008-10-17 11:38:07
PDT -->
<ds>
<name> sum </name>
<type> GAUGE </type>
<minimal_heartbeat> 120 </minimal_heartbeat>
<min> NaN </min>
<max> NaN </max>
<!-- PDP Status -->
<last_ds> 100 </last_ds>
<value> 7.0000000000e+02 </value>
<unknown_sec> 0 </unknown_sec>
web_test.rrd
<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
<step> 15 </step> <!-- Seconds -->
<lastupdate> 1224268687 </lastupdate> <!-- 2008-10-17 11:38:07
PDT -->
<ds>
<name> sum </name>
<type> GAUGE </type>
<minimal_heartbeat> 120 </minimal_heartbeat>
<min> NaN </min>
<max> NaN </max>
<!-- PDP Status -->
<last_ds> 100 </last_ds>
<value> 7.0000000000e+02 </value>
<unknown_sec> 0 </unknown_sec>
web_test_z.rrd
<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
<step> 15 </step> <!-- Seconds -->
<lastupdate> 1224268687 </lastupdate> <!-- 2008-10-17 11:38:07
PDT -->
<ds>
<name> sum </name>
<type> GAUGE </type>
<minimal_heartbeat> 120 </minimal_heartbeat>
<min> NaN </min>
<max> NaN </max>
<!-- PDP Status -->
<last_ds> 100 </last_ds>
<value> 7.0000000000e+02 </value>
<unknown_sec> 0 </unknown_sec>
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