[Xymon] Stack Graphs with SPLITNCV data

[Vernon Everett]

The workaround I implemented for now, is to insert zero-value data entries
to ensure a known number fo data values.
It's not exactly ideal, but it works for system with or without ZFS.

Regards
Vernon


On 2 January 2013 20:46, Vernon Everett <everett.vernon at gmail.com> wrote:

> Hi Henrik
>
> Happy New Year!
>
> Maybe I didn't express myself correctly.
> I understand what you say below, and the problem isn't with SPLITNCV, but
> rather with configuring the graphs.
>
> As you say below, we can do foo1 as AREA, and all the rest of foo2...fooX
> as STACK.
> But how do do this if X is an unknown number?
> The config example below will work for an unknown number of rrd data files
> if we are going to make each data set a LINE2
>
>         FNPATTERN ^disk(.*).rrd
>         TITLE Disk Utilization
>         YAXIS % Full
>         DEF:p at RRDIDX@=@RRDFN@:pct:AVERAGE
>         LINE2:p at RRDIDX@#@COLOR@:@RRDPARAM@
> But how do we create a stack graph with unknown number of data sets?
>
> Regards
> Vernon
>
>
> On 2 January 2013 20:11, <henrik at hswn.dk> wrote:
>
>> On Mon, 31 Dec 2012 10:43:44 +0800, Vernon Everett
>> <everett.vernon at gmail.com> wrote:
>> > Hi all
>> >
>> > Has anybody managed to create a stack graph with SPLITNCV data?
>> > How do we configure it?
>> >
>> > Once upon a time, I authored this
>> http://www.xymonton.org/monitors:memstat
>> > But it had graphing problems if you didn't have ZFS running. (One field
>> > less than the RRD graph config required.)
>> > In the ToDo section, I promised to have a look at using SPLITNCV.
>> > So I am looking into it now, but struggling.
>> > To do a STACK graph, the first entry has to be AREA, and the rest need
>> to
>> > be STACK.
>> > Configuring the RRD graph with SPLITNCV, applies the same graph type to
>> > each data set.
>> > How do we get the first to be AREA, and the rest STACK?
>>
>> I don't understand with "SPLITNCV applies the same graph type to each
>> dataset".
>>
>> With SPLITNCV you have multiple rrd files, each of these hold one data
>> item and you define in the SPLITNCV setting what RRD datatype they are -
>> essentialy GAUGE or COUNTER. E.g. SPLITNCV_foo="ds1:COUNTER,ds2:GAUGE"
>>
>> In the graph definition, you just refer to the specific RRD-file you want
>> to pull data from. This has no relation to the data being a GAUGE or a
>> COUNTER. So the graphs.cfg definition is straight-forward:
>>
>> [foo]
>>    DEF:foo1=foo,ds1.rrd:lambda:AVERAGE
>>    DEF:foo2=foo,ds2.rrd:lambda:AVERAGE
>>    AREA:foo1#FF0000:foo 1 data
>>    STACK:foo2#0000FF:foo 2 data
>>
>>
>> Regards,
>> Henrik
>>
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>>
>
>
>
> --
> "Accept the challenges so that you can feel the exhilaration of victory"
> - General George Patton
>



-- 
"Accept the challenges so that you can feel the exhilaration of victory"
- General George Patton
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