Re: [Devmon] How to if_* graph from Devmon to Hobbit

[Craig B. <cra...@ro...>]

=20Hi,

Could someone explain step 2, If I append rrd() to the TABLE option in
the message file then the following error is logged by devmon.
In looking at the man pages there is no rrd options mentioned.

Bad rrd option '1' at
/usr/local/devmon-0.3.0-beta2/templates/cisco-3750/if_load/message line
5

2)
Then make sure, than the file devmon/templates/modele/if_load/message
TABLE:rrd()
This will show data in a htmltable and add rrd information in the status
page.

Thanks

Craig

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of
xbgmsharp
Sent: Friday, 13 July 2007 10:10 p.m.
To: dev...@li...
Subject: [Devmon] How to if_* graph from Devmon to Hobbit

Hello,

This mail describe how to graph all if_* data from Devmon to Hobbit.
I am currently running hobbit 4.2.0/all-in-one patch and devmon
0.3-beta2

1)
First you need a curently working hobbit and devmon.

2)
Then make sure, than the file devmon/templates/modele/if_load/message
TABLE:rrd()
This will show data in a htmltable and add rrd information in the status
page.

In order to check, you should see RRD data information in the status
page of the service corresponding to your devmon modele when showing
source html.

3)
Now make parse the data to create a rrd file (one par interfaces), this
is done via extra-rrd.pl.
In etc/hobbitlaunch.cfg

[rrdstatus]
=20        ENVFILE /data/hobbit/server/etc/hobbitserver.cfg
=20        NEEDS hobbitd
=20        CMD hobbitd_channel --channel=3Dstatus \
=20                --log=3D$BBSERVERLOGS/rrd-status.log hobbitd_rrd \
=20                --rrddir=3D$BBVAR/rrd \
=20                --extra-script=3D$BBHOME/ext/extra-rrd.pl  \
=20                --extra-tests=3Dif_load

In ext/extra-rrd.pl

if ( $TESTNAME eq "if_load" ) {

=20        # Analyze the message we got
=20        foreach $line (@input) {
=20                if ($line =3D~ /(^[A-Z].*) (\d+):(\d+)$/ ) {

=20                        # The RRD dataset definitions
=20                        print "DS:in:DERIVE:600:0:U\n";
=20                        print "DS:out:DERIVE:600:0:U\n";

=20                        # The filename
=20                        print "if_load_$1.rrd\n";

=20                        # The data
=20                        print "$2:$3\n";
=20                }
=20        }
}

4)
Modify etc/hobbitgraph.cfg

[if_load]
=20        FNPATTERN if_load(.*).rrd
=20        TITLE Network Traffic
=20        YAXIS Bits/second
=20        DEF:in@RRDIDX@=3D@RRDFN@:in:AVERAGE
=20        CDEF:inbytes@RRDIDX@=3Din@RRDIDX@,8,*
=20        DEF:out@RRDIDX@=3D@RRDFN@:out:AVERAGE
=20        CDEF:outbytes@RRDIDX@=3Dout@RRDIDX@,8,*
=20        LINE1:inbytes@RRDIDX@#@COLOR@:@RRDPARAM@ In
=20        GPRINT:inbytes@RRDIDX@:LAST: %8.2lf %s (cur)
=20        GPRINT:inbytes@RRDIDX@:MAX: %8.2lf %s (max)
=20        GPRINT:inbytes@RRDIDX@:MIN: %8.2lf %s (min)
=20        GPRINT:inbytes@RRDIDX@:AVERAGE: %8.2lf %s (avg)\n
=20        LINE1:outbytes@RRDIDX@#@COLOR@:@RRDPARAM@ Out
=20        GPRINT:outbytes@RRDIDX@:LAST: %8.2lf %s (cur)
=20        GPRINT:outbytes@RRDIDX@:MAX: %8.2lf %s (max)
=20        GPRINT:outbytes@RRDIDX@:MIN: %8.2lf %s (avg)
=20        GPRINT:outbytes@RRDIDX@:AVERAGE: %8.2lf %s (avg)\n


4)
In etc/hobbitserver.cfg
Modify the following.
See help/howtograph.html

TEST2RRD=3D"cpu=3Dla,disk,...,if_load"
GRAPHS=3D"la,disk,if_load::1"
The ::1 set the maxcount in order to make one graph form each rrd file
create.

5)
In etc/hobbitcgi.cfg
Modify the following.
See hobbitsvc.cgi man

CGI_SVC_OPTS=3D"--env=3D/data/hobbit/server/etc/hobbitserver.cfg
--no-svcid --history=3Dtop --multi-grahs=3Dif_load,if_err..."

6)
The hardest part.
The hobbit parsing doesn't remove html table table so you will see many
graph link.
In order to fix than, you need to modify the hobbit source:

lib/htmllog.c

patch -p0 < htmllog.path

Here is the path, this only set a new counter for all if_* services.
This is allready working for the trends colunms because, it is checking
all rrd file in the directory.

Henrik, do you have any tips to get the nice counter without editing the
source code of htmllog.c file ?

That's all folks.

--
Thanks for using xbgm#
http://xbgm.sourceforge.net/
Please feedback.
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