[hobbit] strange rrd results via ncv

[Gary Baluha]

I ran into the same confusion myself at one point.  Remember that the values
on the RRD graph are 5 minute averaged values.  So if one minute there are 2
jobs running and the next there are 3, the 2-minute average is 2.5.  The
values do actually make sense when you look at the average value.

On Jan 18, 2008 10:39 AM, Whilding, Craig <
Craig_Whilding_TERM at relay1.mentorg.com> wrote:

>  We recently rolled out a sun grid engine platform and I'm now trying to
> gather performance/usage information from it (if someone already has a
> collection of scripts this would also help me immensely).
>
>
>
> I've written a perl script that passes job queue information to hobbit
> which outputs in the following format:
>
>
>
> Running    jobs : 7
>
> Queued     jobs : 0
>
> Xfering    jobs : 0
>
> Errorstate jobs : 0
>
>
>
> This should be ideal for ncv and I have therefore added ginfo=ncv to
> TEST2RRD in hobbitserver.cfg as well as
> NCV_qinfo="Runningjobs:GAUGE,Queuedjobs:GAUGE,Xferingjobs:GAUGE,Errorstatejobs:GAUGE"
> on its own line because this is fluctuating data and not a counter.
>
>
>
> The graph definition looks like this:
>
> [qinfo]
>
>         TITLE Q Info
>
>         YAXIS Jobs
>
>         DEF:running=qinfo.rrd:Runningjobs:AVERAGE
>
>         DEF:queued=qinfo.rrd:Queuedjobs:AVERAGE
>
>         DEF:xfering=qinfo.rrd:Xferingjobs:AVERAGE
>
>         DEF:errorstate=qinfo.rrd:Errorstatejobs:AVERAGE
>
>         LINE2:running#0000FF:Running Jobs
>
>         LINE2:queued#00CC33:Queued Jobs
>
>         LINE2:xfering#FF0000:Xfering Jobs
>
>         LINE2:errorstate#FFFF00:Errorstate Jobs
>
>         COMMENT:\n
>
>         GPRINT:running:LAST:Running jobs \: %5.1lf%s (cur)
>
>         GPRINT:running:MAX: \: %5.1lf%s (max)
>
>         GPRINT:running:MIN: \: %5.1lf%s (min)
>
>         GPRINT:running:AVERAGE: \: %5.1lf%s (avg)\n
>
>         GPRINT:queued:LAST:Queued jobs \: %5.1lf%s (cur)
>
>         GPRINT:queued:MAX: \: %5.1lf%s (max)
>
>         GPRINT:queued:MIN: \: %5.1lf%s (min)
>
>         GPRINT:queued:AVERAGE: \: %5.1lf%s (avg)\n
>
>         GPRINT:xfering:LAST:Xfering jobs \: %5.1lf%s (cur)
>
>         GPRINT:xfering:MAX: \: %5.1lf%s (max)
>
>         GPRINT:xfering:MIN: \: %5.1lf%s (min)
>
>         GPRINT:xfering:AVERAGE: \: %5.1lf%s (avg)\n
>
>         GPRINT:errorstate:LAST:Errorstate jobs \: %5.1lf%s (cur)
>
>         GPRINT:errorstate:MAX: \: %5.1lf%s (max)
>
>         GPRINT:errorstate:MIN: \: %5.1lf%s (min)
>
>         GPRINT:errorstate:AVERAGE: \: %5.1lf%s (avg)\n
>
>
>
>
>
> As you can see from the attached graph there are some rather strange
> results coming out and the rrd file contains values such as 3.9/4.8 when
> you really can't have .x of a job and the output from the script only ever
> shows whole numbers as it should.
>
>
>
> Thanks for any help with what's going wrong.
>
>
>
>
>
> Regards,
>
> Craig Whilding
>
> IT Systems Contractor
>
> Mentor Graphics
>
>
>
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>
>
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