[hobbit] Sending data from script to an rrd

18 Oct 2006


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Hubbard, Greg L wrote:
...
Rob,
You are trying to combine two scripts into one.  Read the FAQ.
The faq, of note, has some contradictions, while we're on the subject.
Frex:
"If you want the graph included with the other graphs on the trends
column, you must add it to the GRAPHS setting in the
~hobbit/server/etc/hobbitserver.cfg file.
GRAPHS="la,disk,&lt;... lots more ...>,bbproxy,hobbitd,slab"
Okay. Did that with cputemp.  Then at the bottom:
"Make sure you have ncv listed in the GRAPHS setting in
hobbitserver.cfg. (Don't ask why - just take my word that it must be
there)."
Huh?  Does this refer to TEST2RRD and is a typo?  Does it mean the
"extra setting" vaguely described as

So we add an extra setting to hobbitserver.cfg:
NCV_slab="inodecache:GAUGE,dentrycache:GAUGE"

which i kept after the existing statements in the Graph section, for
lack of any more specific notes.
Or does it mean that "ncv" must now appear in GRAPHS= by itself, and
this is the first mention of it?
I have spent all day working with this.  Please don't respond to threads
with "read the FAQ" when i quite obviously stated i have done so, and
they are definitely not written for the novice in any event.  It means
either you have not read what I have written, or that you feel I am in
some way not worth your time.  This is very frustrating.
Thank you.
...
-----Original Message-----
From: Rob Munsch [mailto:rmunsch at solutionsforprogress.com]
Sent: Wednesday, October 18, 2006 2:13 PM
To: hobbit at hswn.dk
Subject: Re: [hobbit] Sending data from script to an rrd
Ralph Mitchell wrote:
...
On 10/18/06, Rob Munsch <rmunsch at solutionsforprogress.com> wrote:
...
...
When you add the --extra-script option in the [rrdstatus] block,
Well i'm stuck already.  What file is that block in?  I can't find it
...
...
in 'server.cfg nor 'graph.cfg...
It's in server/etc/hobbitlaunch.cfg
yeah found that with a grep rrdstatus, heh oops.
...
...
So something like
echo "DS:cputemp:GAUGE:600:0:U"
echo "cputemp.rrd"
probably isn't far off after all?
That should do it, yes.  That's the format for the RRD creation, and
the name to create.  If you just want to push out one value, you'd
follow that with:
...
echo "$temp"
I seem to still be doing something wrong...
...
I don't think hobbit_rrd will recreate the rrd if it already exists,
so you'd have to delete it sometime to get it rebuilt with the extra
variables.  Wave bye-bye to your old data...
"Sir, I have no data."
Ok, so i did this
[cputemp]
TITLE CPU Temp
YAXIS Degrees Fahrenheit
DEF:avg=cputemp.rrd:cputemp:AVERAGE
AREA:cputemp#00CC00:CPU Temp Average
-u 1.0
GPRINT:cputemp:LAST: \: %5.11f (cur)
GPRINT:cputemp:MAX: \: %5.1lf (max)
GPRINT:cputemp:MIN: \: %5.1lf (min)
GPRINT:cputemp:AVERAGE: \: %5.1lf (avg)\n
and this
GRAPHS="la,disk,inode,qtree,memory,users,cputemp,.....8<...
as well, on the server.
but what i get is a text link called
Status unchanged in 1 hours, 41 minutes
Status message received from 10.10.10.12 hobbit graph cputemp
that leads to nothing.  Not even a "nan" graph :P
I think maybe by echo is in the wrong place...?  Should it be before or
after the $BB msg command?  Does it matter?
hobbit at currant:~/client/ext$ cat cputemp.sh #!/bin/sh
umask 133
COLUMN=cputemp
COLOR=green
MSG="Current CPU Temperature: "
host=hostname
ipmitool sensor | grep Temp | awk -F\| '{print $1,$2,$3,$4}' >
$BBTMP/cputemp.$host
cpu_temp=tail -n 4 $BBTMP/cputemp.$host |head -n 1 | awk '{print $2}' |sed 's/\..*//g'
Converting to Fahrenheit.
temp=$((${cpu_temp}*9/5+32))
Ok, we have the temp in degrees as an integer.
Now to see if it's Bad, or even Very Bad.
if $temp > 130
then
COLOR=red
MSG="${MSG} $temp degrees Fahrenheit!
    Hothothot!
    "
else
MSG="${MSG} $temp Degrees Fahrenheit
    Chillin' like a Villain.
    "
fi
echo "DS:cputemp:GAUGE:600:0:U"
echo "cputemp.rrd"
echo "$temp"
Get this to the hobbit server
$BB $BBDISP "status $MACHINE.$COLUMN $COLOR date
${MSG}
"
exit 0
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Rob Munsch
Solutions For Progress IT
www.solutionsforprogress.com
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[hobbit] Sending data from script to an rrd

rmunsch＠solutionsforprogress.com

Converting to Fahrenheit.

Ok, we have the temp in degrees as an integer.

Now to see if it's Bad, or even Very Bad.

Get this to the hobbit server