CE Monitor Installation and Configuration


Software required

The CE monitor is fully implemented in Java, the J2SDK (version 1.4.2) is
required; the rpm is available at

http://java.sun.com

The CE monitor requires the installation of a suitable web server;
in the the this document tomcat is used as reference for web server.

To install jakarta-tomcat (version 5.0.28) create the directory

/opt/egee-repository/jakarta-tomcat-5

in the following this directory is referred as CATALINA_HOME

download

http://egee-jra1-integration.web.cern.ch/egee-jra1-integration/repository/tomcat/5.0.28/share/tomcat.tar.gz

in the directory mentioned above and extract the content.

It may be necessary to change the default listen port (8080) for security reasons for instance.
This can be achieved changing the port 8080 in  files:

/opt/egee-repository/jakarta-tomcat-5/conf/server.xml
/opt/egee-repository/jakarta-tomcat-5/conf/server-minimal.xml

a simple "replace text" can be used.

The jakarta-tomcat web server can be started with the script:

/opt/egee-repository/jakarta-tomcat-5/bin/startup.sh

and stopped using:

/opt/egee-repository/jakarta-tomcat-5/bin/shutdown.sh

and checked with command

netstat -l

looking for the port defined into sever.xml.

At this point the CE monitor can be installed.





Install from RPM

Install the following GLITE  build RPMs:

rpm -ihv glite-ce-monitor-api-java-0.1.0-0.i386.rpm
rpm -ihv glite-ce-ce-plugin-0.1.0-0.i386.rpm
rpm -ihv glite-ce-monitor-0.1.0-0.i386.rpm

Then deploy the CE Monitor web application into tomcat:

mkdir $CATALINA_HOME/webapps/ce-monitor
unzip /opt/glite/share/webapps/ce-monitor.war  -d $CATALINA_HOME/webapps/ce-monitor

Now it is necessary to install the CE-monitor plugin into the CE monitor engine:

ln -s /opt/glite/share/java/glite-ce-ce-plugin.jar $CATALINA_HOME/webapps/ce-monitor/sensors/CESensor.jar



Configuration of the CE plugin

The CE plugin MUST BE configured filling in the /opt/glite/etc/glite-ce-ce-plugin/glite-ce-parameters.cfg 
template according to the document

/opt/glite/share/doc/glite-ce-ce-plugin/ce-info-readme.txt

This configuration is reloaded any time the plugin execution is invoked by the monitor engine.

An example of its content is:

-lrms lsf
-cetype condorc
-cluster grid002.pd.infn.it
-static ce-static.ldif
-auth-users-from-grid-mapfile /etc/grid-security/grid-mapfile
-cluster-batch-system-bin-path /opt/lsf/bin/
-cesebind '.' grid002.pd.infn.it /tmp

It is possible to specify a set of "persistent subscriptions"
(that is consumers that will receive notifications without explicitely
subscribing for them) customizing the configuration file

$CATALINA_HOME/webapps/ce-monitor/subscriptions/predifinedSubscriptionList.xml

the configuratin file contains also a commented template of subscription item.

The schema of the configuration file is contained into CEMonitor.xsd of the package

glite-ce-wsdl-0.1.0-0.i386.rpm.


All services provided by the web application can be checked from this site:

http://<web_server_host>:<web_server_port>/ce-monitor/servlet/AxisServlet

such services are now ready to use.