[hobbit] Sending Data from external script to an RRD - can't see graphs - only links
    Javier Temponi 
    javier.temponi at selectv.com
       
    Tue Sep 25 09:52:03 CEST 2007
    
    
  
Thanks a lot Josh, the two things that you mentioned in your answer
solved my problem, the change in the hobbitgraph.cfg and add your
extra-rrd.pl script. 
 
After those changes I only had to add in the exception file of the
devmon template, wich interfaces I want to graph and it is working!!!
 
Thanks again for the help
Regards
Javier
 
________________________________
From: Joshua Krause [mailto:joshuakrause at triad.rr.com] 
Sent: Monday, 24 September 2007 8:08 PM
To: hobbit at hswn.dk
Subject: Re: [hobbit] Sending Data from external script to an RRD -
can't see graphs - only links
 
One thing I see that I made the same mistake at is in your
hobbitgraph.cfg:
 
[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
 
you need to replace "(at)" with "@", It looks like when the post was
made it converted all the @ to (at).  But that was my big problem.  And
I am not using the NCV function and don't think it is  to be done using
that but could be wrong.   And my extra-rrd.pl looks like this:
 
#!/usr/bin/perl 
 
# Input parameters: Hostname, testname (column), and messagefile
$HOSTNAME=$ARGV[0]; ;
$TESTNAME=$ARGV[1]; ;
$FNAME=$ARGV[2]; ;
 
# Read the entire files
open (FILEHANDLE,$FNAME) || die ("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";
                }
        }
}
 
 
Hope this helps you out and if you need anymore I will be glad to give
ya what I know or have found out.
 
Josh
 
On Sep 24, 2007, at 2:13 AM, Javier Temponi wrote:
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 appreciate.
 
Thanks in advance
Javier
 
 
 
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