After the first post, we will see now how to check jboss parameters using jmx and to create graph, based on data returned from nagios command, using PNP4NAGIOS.
JMX4PERL
Download jmx4perl
sudo apt-get install libxml-libxml-perl perl Build.PL
Se le dipendenze non sono soddisfatte
./Build installdeps sudo ./Build install
download jolokia-war-x.y.x.war from http://www.jolokia.org/download.html
rename to jolokia.war and deploy to jboss
test with jmx4perl http://<server>:<port>/jolokia will print some server information
check_jmx4perl -u http://localhost:8050/jolokia –alias MEMORY_HEAP_USED –base MEMORY_HEAP_MAX –warning 80 –critical 90 for HEAP MEMORY
Now modify command.cfg
#check_jmx_alias_base
define command {
command_name check_jmx4perl_alias_base
command_line check_jmx4perl -u $ARG1$ --alias MEMORY_HEAP_USED --base MEMORY_HEAP_MAX --warning $ARG2$ --critical $ARG3$
}
Add the following command to your host
define service {
service_description JBoss Heap Memory
use generic-service
host_name localhost
action_url http://localhost:8050/jolokia
check_command check_jmx4perl_alias_base!$SERVICEACTIONURL$!80!90
}
PNP4NAGIOS
Download PNP4NAGIOS
./configure sudo apt-get install librrds-perl rrdtool sudo make all sudo male install sudo make install-webconf sudo make install-config sudo apt-get purge libapache2-mod-php5 php5 && sudo apt-get install libapache2-mod-php5 php5 mod_rewrite disabled? sudo a2enmod rewrite
Modify nagios.cfg
vi /usr/local/nagios/etc/nagios.cfg
process_performance_data=1 Additionally some new directives are required # # service performance data # service_perfdata_file=/usr/local/pnp4nagios/var/service-perfdata service_perfdata_file_template=DATATYPE::SERVICEPERFDATA\tTIMET::$TIMET$\tHOSTNAME::$HOSTNAME$\tSERVICEDESC::$SERVICEDESC$\tSERVICEPERFDATA::$SERVICEPERFDATA$\tSERVICECHECKCOMMAND::$SERVICECHECKCOMMAND$\tHOSTSTATE::$HOSTSTATE$\tHOSTSTATETYPE::$HOSTSTATETYPE$\tSERVICESTATE::$SERVICESTATE$\tSERVICESTATETYPE::$SERVICESTATETYPE$ service_perfdata_file_mode=a service_perfdata_file_processing_interval=15 service_perfdata_file_processing_command=process-service-perfdata-file # # host performance data starting with Nagios 3.0 # host_perfdata_file=/usr/local/pnp4nagios/var/host-perfdata host_perfdata_file_template=DATATYPE::HOSTPERFDATA\tTIMET::$TIMET$\tHOSTNAME::$HOSTNAME$\tHOSTPERFDATA::$HOSTPERFDATA$\tHOSTCHECKCOMMAND::$HOSTCHECKCOMMAND$\tHOSTSTATE::$HOSTSTATE$\tHOSTSTATETYPE::$HOSTSTATETYPE$ host_perfdata_file_mode=a host_perfdata_file_processing_interval=15 host_perfdata_file_processing_command=process-host-perfdata-file
Modify command.cfg
define command{
command_name process-service-perfdata-file
command_line /usr/local/pnp4nagios/libexec/process_perfdata.pl --bulk=/usr/local/pnp4nagios/var/service-perfdata
}
define command{
command_name process-host-perfdata-file
command_line /usr/local/pnp4nagios/libexec/process_perfdata.pl --bulk=/usr/local/pnp4nagios/var/host-perfdata
}
sudo service apache restart
open browser http://localhost/pnp4nagios/
If your environment passed all requirements remove or rename the /usr/local/pnp4nagios/share/install.php file
Modify template.cfg
define host {
name host-pnp
action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$' class='tips' rel='/pnp4nagios/index.php/popup?host=$HOSTNAME$_
register 0
}
define service {
name srv-pnp
action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$' class='tips' rel='/pnp4nagios/index.php/popup?host=$HOSTNAME$&srv=$SERVICEDESC$
register 0
}
define service {
register 0
name pnp-preview-popup
icon_image Invisible.png' border="0"></a><a href="/pnp4nagios/graph?host=$HOSTNAME$&srv=$SERVICEDESC$" rel="/pnp4nagios/popup?host=$HOSTNAME$&srv=$S$
}
Enable pop up
move to the folder where you extract pnp4nagios.tar.gz
mv contrib/status-header.ssi /usr/local/nagios/share/ssi/status-header.ssi (check filename, had to remove fake extension .in)
check grant rw r r nagios nagios
modify file, the first two row must be changed like that
<script src="/pnp4nagios/media/js/jquery-min.js" type="text/javascript"></script> <script src="/pnp4nagios/media/js/jquery.cluetip.js" type="text/javascript"></script>
Modify YourHost.cfg and add the following, for example you can create a graph for memory heap time-line of jboss
Add to Host the template use linux-server, host-pnp
Add to service the template use generic-service, srv-pnp (for visualize a link to graph)
Add to service the template use generic-service, pnp-preview-popup (for visualize a small graph and onmouseOver popUp preview)
That’s all!
