From: Javier Temponi [mailto:javier.temponi at selectv.com] Sent: Montag, 24. September 2007 08:14 To: hobbit at hswn.dk Subject: [hobbit] Sending Data from external script to an RRD - can't see graphs - only links

Hello, I want to graph the load information of my routers interfaces, I have been reading for several days the list, and I have learned a lot but not enough yet to make this works :-)...

This is the situation: I receive the information from devmon, and execute an external script to write the rrd file. The files are written but I can not see them from the hobbit page.

I have the rrd files generated and updated but in the hobbit page I only can see the links and no graph (not an empty or blank graph, only the little box with the name of the link inside).

I'm using devmon 0.3.0-beta2 and hobbit 4.2 with the patch all in one installed.

OS: Linux kernel 2.6.9

Other graphs work fine, the default ones, for example the Conn graph.

The information from devmon is received ok by hobbit, because I have a table with the load of the interfaces that devmon sent.

These are the configuration files:

hobbitserver.cfg (to see the graphs in the load and trends columns):

TEST2RRD=".....,if_load=ncv"

NCV_if_load="in:GAUGE,out:GAUGE"

GRAPHS="......,if_load"

hobbitlaunch.cfg

[rrdstatus]

    ENVFILE /usr/local/hobbit/server/etc/hobbitserver.cfg

    NEEDS hobbitd

    CMD hobbitd_channel --channel=status

--log=$BBSERVERLOGS/rrd-status.log hobbitd_rrd --rrddir=$BBVAR/rrd --extra-script=$BBHOME/ext/extra-rrd.pl --debug --extra-tests=if_load

This is the script ext/extra-rrd.pl

#!/usr/bin/perl

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

#$HOSTNAME=$ARGV[0]; ;

$TESTNAME=$ARGV[1]; ;

$FNAME=$ARGV[2]; ;

$filename="/tmp/if_log";

Read the entire files

open (FILEHANDLE,$FNAME) || die (print "cant read file\n");

@input = <FILEHANDLE>;

close (FILEHANDLE);

if ( $TESTNAME eq "if_load" ) {

    # Analyze the message we got

    foreach $line (@input) {

            if ($line =~ /(^[A-Z].*) (\d+):(\d+)$/ ) {



                    # The RRD dataset definitions

                    print "DS:in:DERIVE:600:0:U\n";

                    print "DS:out:DERIVE:600:0:U\n";



                    # The filename

                    print "if_load_$1.rrd\n";



                    # The data

                    print "$2:$3\n";

            }

    }

}

hobbitgraph.cfg file :

[if_load]

    FNPATTERN if_load(.*).rrd

    TITLE Network Traffic

    YAXIS Bits/second

    DEF:in (at) RRDIDX@= (at) RRDFN@:in:AVERAGE

    CDEF:inbytes (at) RRDIDX@=in (at) RRDIDX@,8,*

    DEF:out (at) RRDIDX@= (at) RRDFN@:out:AVERAGE

    CDEF:outbytes (at) RRDIDX@=out (at) RRDIDX@,8,*

    LINE1:inbytes (at) RRDIDX@# (at) COLOR@:@RRDPARAM@ In

    GPRINT:inbytes (at) RRDIDX@:LAST: %8.2lf %s (cur)

    GPRINT:inbytes (at) RRDIDX@:MAX: %8.2lf %s (max)

    GPRINT:inbytes (at) RRDIDX@:MIN: %8.2lf %s (min)

    GPRINT:inbytes (at) RRDIDX@:AVERAGE: %8.2lf %s (avg)\n

    LINE1:outbytes (at) RRDIDX@# (at) COLOR@:@RRDPARAM@ Out

    GPRINT:outbytes (at) RRDIDX@:LAST: %8.2lf %s (cur)

    GPRINT:outbytes (at) RRDIDX@:MAX: %8.2lf %s (max)

    GPRINT:outbytes (at) RRDIDX@:MIN: %8.2lf %s (avg)

    GPRINT:outbytes (at) RRDIDX@:AVERAGE: %8.2lf %s (avg)\n

If anyone has any idea, where the problem could be or any work around I'll really appreciat