[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [hobbit] Custom RRD graphs

Hi

I dont know why you would write your own rrdext script when NCV will do this for you. Looking at your steps all you need is to send the OUTPUT in a seperate line with a blank line in between and then adding a NCV_acpu="acpu:GAUGE" to hobbitserver.cfg and all will be done for you.

This is where I always go when ever I have a new graph to make http://www.hswn.dk/~henrik/howtograph.txt

Br Thomas

Ger Maguire wrote:
Folks,
I'm still having trouble with my graphs. I have turned on the debug mode and I'm getting the following for one of the tests.
I've even gone so far to do a complete OS install on a new machine with only hobbit to make there was nothing conflicting with it.
The scripts seem to be working but the rrd files are just not updating. Can anyone see anything wrong ?
2006-12-03 12:27:42 Want msg 119403, startpos 128142, fillpos 128142, endpos -1, usedbytes=0, bufleft=400241
2006-12-03 12:27:42 hobbitd_rrd: Got message 119403 @@status#119403|1165148862.825676|10.8.1.10||fwi-lor-02|acpu|1165150662|green||green|1165065289|0||0||0
2006-12-03 12:27:42 startpos 128677, fillpos 128677, endpos -1
2006-12-03 12:27:42 -> do_external(fwi-lor-02, acpu)
2006-12-03 12:27:42 <- do_external(fwi-lor-02, acpu)
2006-12-03 12:27:42 Want msg 119404, startpos 128677, fillpos 128677, endpos -1, usedbytes=0, bufleft=399706
2006-12-03 12:27:42 000013787 : Saving msg to file /usr/lib/hobbit/server/tmp/rrd_msg_13787
2006-12-03 12:27:42 000013787 : Calling helper script /usr/lib/hobbit/server/ext/rrd-ext.sh fwi-lor-02 acpu /usr/lib/hobbit/server/tmp/rrd_msg_13787
2006-12-03 12:27:42 000013787 : Unlinking temp file
Thanks,
Ger.

------------------------------------------------------------------------
*From:* Ger Maguire [mailto:ger (at) fwi.ie]
*Sent:* 30 November 2006 20:17
*To:* hobbit (at) hswn.dk
*Subject:* RE: [hobbit] Custom RRD graphs

I think I have gone through all the steps and have poured over the docs and manpages
So far:
1 Created custom script outputing data to hobbit using status switch
$BBHOME/bin/bb $BBDISP "status $HOST.$TEST $COLOUR $OUTPUT"
2 Created rrd-ext script and have it getting data as per below (numeric vale for catching a % value)
3 Modified hobbitserver.cfg
Added acpu test to TEST2RRD="cpu=la,disk, ... ,acpu"
Added acpu test to GRAPHS="la,disk, ... ,acpu"
4 Modified hobbitlaunch.cfg

[rrdstatus]
ENVFILE /usr/lib/hobbit/server/etc/hobbitserver.cfg
NEEDS hobbitd
CMD hobbitd_channel --channel=status --log=$BBSERVERLOGS/rrd-status.log
hobbitd_rrd --rrddir=$BBVAR/rrd --extra-script=/usr/lib/hobbit/server/ext/rrd-ext.sh --extra-tests=acpu
I haven't modified [rrddata] as I'm sending the data in using the status command but I'll stick it in and see if it makes a difference.
Added the test itself to hobbitlaunch to run every 5 mins, all works ok pages update in hobbit
[acpu]
ENVFILE /usr/lib/hobbit/server/etc/hobbitserver.cfg
NEEDS hobbitd
CMD $BBHOME/ext/acpu.sh
INTERVAL 5m
5 Modified hobbitgraph.cfg with the following
[acpu]
TITLE CPU Utilisation
YAXIS % Load
DEF:acpu=acpu.rrd:acpu:AVERAGE
AREA:acpu#00CC00:Utilisation
GPRINT:acpu:LAST: \: %5.1lf%s (cur)
GPRINT:acpu:MAX: \: %5.1lf%s (max)
GPRINT:acpu:MIN: \: %5.1lf%s (min)
GPRINT:acpu:AVERAGE: \: %5.1lf%s (avg)\n
The rrd files get created in the correct place and the pages in hobbit show the graph but there is just no data being displayed and the timestamp on the acpu.rrd files is showing they are not being updated.
This is where I'm stumped, the log files don't show any relevant info or messages to point me to anything thats wrong.
I'm running it on debian sarge distro using the .deb package from sourceforge.
Ger.
------------------------------------------------------------------------
*From:* Hubbard, Greg L [mailto:greg.hubbard (at) eds.com]
*Sent:* 30 November 2006 19:55
*To:* hobbit (at) hswn.dk
*Subject:* RE: [hobbit] Custom RRD graphs

Why bother when Hobbit will use your echo output to do that?
But there is more to graphing than simply creating the RRD files. Next you have to create graph definitions that will use your new files, and these graphs have to work. Then you can add your new graphs to the Hobbit server so they will show up with the associated test (TEST2RRD variable) and/or in the trends display.
You say you see the data being echoed -- are the RRD files not getting created/updated? Did you add your rrd-ext to the right place on the server? Did you add it to hobbit-rrd for both data and status messages?
(or whatever, I am going from dim memory)
GLH

    ------------------------------------------------------------------------
    *From:* Ger Maguire [mailto:ger (at) fwi.ie]
    *Sent:* Thursday, November 30, 2006 1:44 PM
    *To:* hobbit (at) hswn.dk
    *Subject:* RE: [hobbit] Custom RRD graphs

Guys, When creating custom scripts, has anyone just used rrdcreate
and rrdtool update to directly output the data to the rrd files ?
If the the tests are all residing on the one machine and not
polling data from other clients is it an easier way to update the
graphs as I just can't get the status script to update for me ?
Thanks,
Ger.

    ------------------------------------------------------------------------
    *From:* Ger Maguire [mailto:ger (at) fwi.ie]
    *Sent:* 29 November 2006 20:13
    *To:* hobbit (at) hswn.dk
    *Subject:* [hobbit] Custom RRD graphs

Hi folks,
I have created a custom script for capturing CPU utilisation from
a device and updated all the relevant files but I cannot get my
rrd files to update correctly.
An initial rrd file gets created but the data does not get input
into it.
I have created a rrd-ext sript which is running and is capturing
the incomming status data and by looking at the /tmp files I can
see that the echo outputs are being generated correctly every 5
mintes.
----> rrd-ext.sh
HOSTNAME="$1"
TESTNAME="$2"
FNAME="$3"
if [ "$TESTNAME" = "acpu" ]
then
echo "`date`" >> /tmp/hobbit.$HOSTNAME.$TESTNAME
echo "$FNAME" >> /tmp/hobbit.$HOSTNAME.$TESTNAME
# Analyze the message we got
# ACPU=`grep "connected" $FNAME | awk '{print $14}'`
ACPU=`grep "The 5" $FNAME | cut -d"(" -f2 | cut -d"." -f1`
# The RRD dataset definitions
echo "DS:acpu:GAUGE:600:0:100"
# The filename
echo "acpu.rrd"
# The data
echo "$ACPU"
echo "$ACPU" >> /tmp/hobbit.$HOSTNAME.$TESTNAME
fi
The value I want to graph is simply a cpu % counter, have I got
the above values and setting correct for this ?
Any help or pointers appreciated.
Output that this produces is below showing that it is getting the
data correctly from the status input.
---> /tmp/hobbit.$HOSTNAME.$TESTNAME
Wed Nov 29 19:54:07 GMT 2006
/usr/lib/hobbit/server/tmp/rrd_msg_13879
14
Wed Nov 29 19:59:05 GMT 2006
/usr/lib/hobbit/server/tmp/rrd_msg_26569
25
Wed Nov 29 20:04:07 GMT 2006
/usr/lib/hobbit/server/tmp/rrd_msg_2788
17
Wed Nov 29 20:09:12 GMT 2006
/usr/lib/hobbit/server/tmp/rrd_msg_11944
9
Ger.