[hobbit] Re: code specific rrdidx question

[Hubbard, Greg L]

You might compare your graph definition with the ones used for disks.
The disk detail page can show more than one image.  This might be a
restriction on CUSTOM graphs instead of the ones that are built in.
Henrik mentioned a while back that we could only have one graph on the
detail page, and that it would be a big chore to change the code to
allow more than one custom graph on the detail page.

Evidently the trend page uses a different path.

GLH


-----Original Message-----
From: Jeff Newman [mailto:jeffnewman75 at gmail.com] 
Sent: Wednesday, March 22, 2006 5:10 PM
To: hobbit at hswn.dk
Subject: [hobbit] Re: code specific rrdidx question

UPDATE:

I somewhat fixed the problem.

This is for sure:

A directory that has:
sar,cpu0 , sar,cpu1 , sar,cpu2 , sar,cpu3 ...... sar,cpu10, ...
sar,cpu15

will break on both the status and trends page after it does sar,cpu1

I changed all the RRD's/tests to do:

sar,cpu00 , sar,cpu01 , sar,cpu02 , sar,cpu03 ..... sar,cpu15

and it now does not break.

I still only see 0,1,2,3 on the button's page. The trends page shows all
16 cpu's. Any idea why the button page only shows the first 4?
Again, I have sar::1 in the hobbitserver.cfg, so it generates 1 graph
for each CPU

Thanks,
Jeff


On 3/22/06, Jeff Newman <jeffnewman75 at gmail.com> wrote:
> Sorry for the traffic, wanted to change this to say that maybe it 
> isn't just (or plain isn't) RRDIDX, but maybe FNPATTERN as well. So 
> add to my questions:
>
> Does FNPATTERN have a problem distinguishing between
> cpu1 and cpu10
>
> -Jeff
>
>
> On 3/22/06, Jeff Newman <jeffnewman75 at gmail.com> wrote:
> > All,
> >
> > I don't know C all that well, so I need some assistance.
> >
> > what are the limits/constraints of RRDIDX for graphing?
> >
> > I believe the answer is buried somewhere in hobbitgraph.c
> >
> > Here is my test case:
> >
> > I had:
> >
> > sar,cpu0.rrd
> > sar,cpu1.rrd
> > sar,cpu2.rrd
> > sar,cpu3.rrd
> > ...
> > sar,cpu10.rrd
> > sar,cpu11.rrd
> > ...
> > sar,cpu15.rrd
> >
> > hobbitgraph.cfg:
> >
> > [sar]
> >        FNPATTERN sar,(.*).rrd
> >        TITLE CPU sar
> >        YAXIS %
> >        DEF:usr at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntusr:AVERAGE
> >        DEF:sys at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntsys:AVERAGE
> >        DEF:wio at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntwio:AVERAGE
> >        DEF:idl at RRDIDX@=@RRDFN@:cpu at RRDIDX@pcntidl:AVERAGE
> >        AREA:usr at RRDIDX@#0000FF:@RRDPARAM at pcntusr
> >        GPRINT:usr at RRDIDX@:LAST: \: %5.1lf (cur)
> >        GPRINT:usr at RRDIDX@:MAX: \: %5.1lf (max)
> >        GPRINT:usr at RRDIDX@:MIN: \: %5.1lf (min)
> >        GPRINT:usr at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
> >        STACK:sys at RRDIDX@#FF0000:@RRDPARAM at pcntsys
> >        GPRINT:sys at RRDIDX@:LAST: \: %5.1lf (cur)
> >        GPRINT:sys at RRDIDX@:MAX: \: %5.1lf (max)
> >        GPRINT:sys at RRDIDX@:MIN: \: %5.1lf (min)
> >        GPRINT:sys at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
> >        STACK:wio at RRDIDX@#800080:@RRDPARAM at pcntwio
> >        GPRINT:wio at RRDIDX@:LAST: \: %5.1lf (cur)
> >        GPRINT:wio at RRDIDX@:MAX: \: %5.1lf (max)
> >        GPRINT:wio at RRDIDX@:MIN: \: %5.1lf (min)
> >        GPRINT:wio at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
> >        STACK:idl at RRDIDX@#008000:@RRDPARAM at pcntidl
> >        GPRINT:idl at RRDIDX@:LAST: \: %5.1lf (cur)
> >        GPRINT:idl at RRDIDX@:MAX: \: %5.1lf (max)
> >        GPRINT:idl at RRDIDX@:MIN: \: %5.1lf (min)
> >        GPRINT:idl at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n
> >
> >
> > hobbitserver.cfg has sar::1 (to only draw 1 graph per cpu) for 
> > GRAPHS, and just regular "sar" is in TEST2RRD
> >
> > sar is in the "multitest" section of hobbitcgi.cfg, as well as 
> > listed in the extra tests section of hobbitlaunch.cfg
> >
> > On a host with 4 CPU's (0,1,2,3) it draws 4 graphs On a host with 16

> > CPU's (0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15)
> > It would draw a graph for 0,1, and broken boxes for 2,3, and no
others.
> >
> > SO, I removed "10,11,12,13,14,15" and outputted them to a,b,c,d,e,f 
> > respectively.
> >
> > The graphs then drew 0,1,2,3 and no more.
> >
> > If I click on a specific graph, and change the "first=" to 5, it 
> > will draw a graph for CPU4, so somewhere, the first= line isn't 
> > getting generated correctly.
> >
> > So I guess 2 questions:
> >
> > 1 already stated (limitations of RRDIDX - does is get confused by 1 
> > vs 10 for example) The other is where the first= line gets updated 
> > and why isn't it getting updated correctly?
> >
> > Any insights would be much apprieciated, as this is driving me nuts.
> >
> > Thanks,
> > Jeff
> >
>

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