Running bb-sar LARRD on hobbbit server

[Alon Ofek]

Hello all,

I have seen a few items regarding installing SAR LARRD on Hobbit.

Follow the instructions bellow and that should work (worked for me):

 

1.	Change the hobbitlaunch.cfg and add the larrd.pl to handle LARRD
specific scripts: 

[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-scrip

t=/usr/local/larrd/larrd.pl --extra-tests=sar

2.	restart your hobbitd 
3.	change the larrd.pl to get the input file from the command line
for each server running the test

use lib qw{/usr/local/larrd}; # LARRDHOME hardcoded

require "larrd-config.pl";

 

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

# Start of script

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

 

my $commahost = shift;

my $testName = shift ; # run the specific test. 

my $log = shift ;      # The log file from Hobbit_rrd

my $mod = $testName ;

 

if( not $ENV{'BBHOME'} ) {

        print "$0: BBHOME is not set\n";

        exit(1);

}

 

if( not -d $ENV{'BBHOME'} ) {

        print "$0: BBHOME is invalid\n";

        exit(1);

}

 

##

# Generate the html

##

 

`$ENV{'LARRDHOME'}/larrd-html.pl >> $ENV{'LARRDLOG'} 2>&1`;

 

 

##

# real work begins here

##

 

if( not -d $ENV{'BBRRDS'} ) {

        mkdir "$ENV{'BBRRDS'}",0755;

        print "$0 did not find $ENV{'BBRRDS'}, created.\n";

}

 

foreach $type ("pl","sh") {

   if( -f "$ENV{'LARRDHOME'}/$mod-larrd.$type") {

        `$ENV{'LARRDHOME'}/$mod-larrd.$type  $commahost $log >>
$ENV{'LARRDLOG'} 2>&1`; 

   }

}

 

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

# end of script

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

 

4.	Specific for sar-larrd.pl you must change the script to process
specific log file and update the RRD files. You must change the RRD
location to meet the new Hobbit standard:

# Where should the RRD's be kept?

# pronounced birds

$ENV{'BBRRDS'}="$ENV{'BBVAR'}/rrd/$commahost"; ( Don't forget to change
the RRD time step that is based on the old LOG location:

     #my $ctime = (stat("$ENV{'BBLOGS'}/${commahost}.sar"))[10];  # Old
what to do it

      my $ctime = (stat("$log"))[10];

 

5.	Change the larrd-config.pl for environment variable
6.	Change the sar-grapher.cgi and replace @rrds array with:

@rrds = sort(&glob("$ENV{'BBRRDS'}/$commahost/$commahost.SAR_n_*.rrd"));

 

 

If you need add DEBUG=1 to your larrd-config.pl file the test the
LARRDOUT file for errors.

 

It works great for me but you must think of the performance penalty when
you add more LARRD graphs. 

If anyone find a way to integrate it into the Hobbit_rrd  - I'll be
happy to hear. Perl is much easier then C to do the sar output
processing

 

 

Alon Ofek


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