Hi Henrik,

I have written the following script to create custom rrd dada file, but it is not working.

####################### #!/bin/sh

Input parameters: Hostname, testname (column), and messagefile

HOSTNAME="$1" TESTNAME="$2" FNAME="$3"

if [ "$TESTNAME" = "printq" ] then i=0 cat $FNAME |
while read line do v=echo $line | grep "^PRN...:" | awk -F: '{print $2}'

The RRD dataset definitions

echo "DS:value:GAUGE:600:0:U"

The filename

echo "printq.$i.rrd"

let i=$i+1

echo $v done fi exit 0 #####################3

According to the hobbitd_rrd man page $FNAME is the file which will have the data of the test. However in the example script FNAME=$3 is assigned, so what would be the value of FNAME=$3 across the script, even for HOSTNAME=$1 and TESTNAME=$2 why is that given?

I thought of reading $FNAME line by line and grep the value of that line and assign to a variable. And create separate rrd file for each value.

I tested the script by assigning the values TESTNAME=printq & FNAME=testdata 'testdata' is a file which contain some data as follows which resembles the data reported by 'printq' test.

PRN123:0 PRN345:6 PRN456:2 PRN123:9

The script is working as expected when I tested the above way. but when I triggered it with hobbitd_rrd it does nothing. :-(

Can you please point out what is going wrong or if I have missed any thing?

##############Lines from hobbitlaunc.cfg################################ [rrdstatus] ENVFILE /home/hobbit/server/etc/hobbitserver.cfg NEEDS hobbitd CMD hobbitd_channel --channel=status --log=$BBSERVERLOGS/rrd-status.log hobbitd_rrd --rrddir=$BBVAR/rrd --extra-script =/home/hobbit/server/bin/rl.sh --extra-test=printq

"rrddata" updates RRD files with information that arrives as "data"

messages.

If you want RRD graphs of your monitoring BB data, then you want to

run this.

[rrddata] ENVFILE /home/hobbit/server/etc/hobbitserver.cfg NEEDS hobbitd CMD hobbitd_channel --channel=data --log=$BBSERVERLOGS/rrd-data.log hobbitd_rrd --rrddir=$BBVAR/rrd --extra-script=/ home/hobbit/server/bin/rl.sh --extra-test=printq

########################################################################

printq is assigned to TEST2RRD vairable in hobbitserver.cfg

Regards Subhash

-----Original Message----- From: Hubbard, Greg L [mailto:greg.hubbard at eds.com] Sent: Thursday, March 16, 2006 7:49 PM To: hobbit at hswn.dk Subject: RE: [hobbit] CUSTOM RRD DATA VIA SCRIPTS

Subhash,

I think you are on the right track. But since your script needs to recognize each line and process it independently, you need to send the grep output through some sort of a loop, and then unpack each line. I am not exactly a shell wizard, but at least two approaches come to mind:

A) send the output of the grep to a temporary file, then process the temporary file line by line.

B) process the output of the grep line by line in a loop (skipping the temporary file).

There is nothing that says that you have to process the output in shell -- you could also use Perl. Just keep in mind that you can only have one processor on your server and it has to be able to deal with everyone's needs.

Or, as Henrik suggests, you can dig out a C book and write a new module to recognize all of this. I would take a swing a Perl before I would do that, since my C skills are nil.

Anyone care to donate a few lines of Bourne that would help Subhash over the hump?

GLH

-----Original Message----- From: Gada, Subhash [mailto:subhash.gada at logicacmg.com] Sent: Wednesday, March 15, 2006 10:58 PM To: hobbit at hswn.dk Subject: RE: [hobbit] CUSTOM RRD DATA VIA SCRIPTS

Hi Greg,

I Apologise for bothering you all with script debugging!

I thought of the following script, however I could not debug the script. I have the following questions?

I thought of taking advantage of the common letters PRN and grep it with "PRN*". Is this the correct way to grep the value?

Example data from server1 PRN327:0 PRN203:1 PRN202:0

Example data from server2 PRN123:3 #-----------------------name:value PRN314:0 PRN137:0 PRN136:0

The idea is to create separate rrd files of each value. The host which send the data to hobbit does not have a fixed number of name:values but maximum of 30

If I trigger the script with hobbd_rrd nothing is happening and the CPU utilisation is growing up to 90%

Around 25 hosts have the test "printq" running.

#!/bin/sh

Input parameters: Hostname, testname (column), and messagefile

HOSTNAME="$1" TESTNAME="$2" FNAME="$3"

index=0 if [ "$TESTNAME" = "printq" ] then

For test purpose looping fixed number of times.

while [ $index -lt 30 ] do p[index]=grep "^PRN*:" $FNAME | awk '{print $2}'

The RRD dataset definitions

echo "DS:$index:GAUGE:600:0:U"

The filename

echo "printq.$index.rrd"

#The data echo ${p[index]} let index=$index+1

#exit the loop when the value of $p{[index]} is null if [ $p{[index]} -eq "" ] then
exit fi done fi exit 0

Regards Subhash

-----Original Message----- From: Hubbard, Greg L [mailto:greg.hubbard at eds.com] Sent: Wednesday, March 15, 2006 9:37 PM To: hobbit at hswn.dk Subject: RE: [hobbit] CUSTOM RRD DATA VIA SCRIPTS

Well, it does not appear to be that difficult. For each data element, you need to put out the DS line, then the file name, then the values. Make the file name match the element.

So, if F070 = 1, F001 = 2, F037 = 5

"DS:value:GAUGE:600:0:U" "F070.rrd" "1" "DS:value:GAUGE:600:0:U" "F001.rrd" "2" "DS:value:GAUGE:600:0:U" "F037.rrd" "5"

The Hobbit RRD support will do the right thing, creating these datasets in the directory for the associated host.

Then, in the Hobbit graph definition, you have to figure out how to use the wildcard mechanism to find all the F*.rrd files. The file names can be used to replace the parameter value "value" in the dataset would become F070, F001, F037, etc. This seems to be how the disk magic works.

Good luck!

GLH

-----Original Message----- From: Werner (Ext Lists) [mailto:wmlist_ext at terra.com.br] Sent: Wednesday, March 15, 2006 6:09 AM To: hobbit at hswn.dk Subject: Re: [hobbit] CUSTOM RRD DATA VIA SCRIPTS

Hi You can see the disk rrd handler in <source_code_home_dir>hobbitd/rrd/do_disk.c , who`s an include to hobbitd/rrd/do_rrd.c

-wm

On Wed, 15 Mar 2006 12:47:17 +0530 "Gada, Subhash" <subhash.gada at logicacmg.com> wrote:

Hi,

Yes the graph mechanism of disk suites similarly to the requirement.

Can any one explain how the the separate rrd files are created for different disk volumes. I couldn't trace how this is happening.

Regards Subhash

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