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Nicosia, March 18, 2010

Nicosia, March 18, 2010. Installation and Configuration : SESSION C Andoena Balla <andoena@cs.ucy.ac.cy> Trainer, University of Cyprus. Installing the Operating System. OS version of gLite Middleware version 3.1 is Scientific Linux 4 (SL4): http://www.scientificlinux.org

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Nicosia, March 18, 2010

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  1. Nicosia, March 18, 2010 Installation and Configuration :SESSION C Andoena Balla <andoena@cs.ucy.ac.cy>Trainer, University of Cyprus

  2. Nicosia, 18 March 2010 Installing the Operating System • OS version of gLite Middleware version 3.1 is Scientific Linux 4 (SL4): • http://www.scientificlinux.org • The sources and the images (iso) to create CDs for SLC4 can be found in this site: • ftp://ftp.scientificlinux.org/linux/scientific/4x

  3. Nicosia, 18 March 2010 Node synchronization, NTP installation and configuration • A general requirement for the gLite nodes is that they are synchronized • Use the NTP protocol with a time server • yum install ntp • edit the file /etc/ntp/step-tickers • pool.ntp.org • Activate the ntpd service with the following commands: • ntpdate pool.ntp.org • service ntpd start • chkconfig ntpd on • Check ntpd's status by running the following command: • ntpq -p

  4. Nicosia, 18 March 2010 Host Certificates • All nodes except UI, WN and BDII require the host certificate/key files to be installed • Obtain a certificate from national Certification Authority (CA) • Place the certificate under /etc/grid-security (hostcert.pem containing the machine public key) (hostkey.pem containing the machine private key ) • cp /root/<service>/hoscert.pem /etc/grid-security/ • cp /root/<service>/hostkey.pem /etc/grid-security/ • Make sure that the permission of the certificate are: • -r--r--r-- 1 root root 4249 Jun 30 2009 hostcert.pem • -r-------- 1 root root 887 Jun 30 2009 hostkey.pem

  5. Nicosia, 18 March 2010 Installing the Middleware • Java is required before proceeding to middleware installation: • cd /root/java • rpm -ivh java-1.5.0-sun-1.5.0.14-1jpp.i586.rpm • rpm -ivh java-1.5.0-sun-devel-1.5.0.14-1jpp.i586.rpm • Repositories • the middleware repositories • the CA repository • the jpackage repository • DAG • The middleware repositories • wget the yum repository for the node type and place it under • /etc/yum.repos.d • Download repositories from: • http://grid-deployment.web.cern.ch/grid-deployment/glite/repos/3.1

  6. Nicosia, 18 March 2010 The DAG repository • DAG is a maintained repository which provides a number of packages not available through Scientific Linux • In a limited number of cases, DAG provides rpms already represent in the OS • In this case, DAG rpms are of a higher version • Install the relevant rpm by hand before installing the meta-package • wget 'http://linuxsoft.cern.ch/dag/redhat/el4/en/i386/RPMS.dag/perl-SOAP-Lite-0.69-1.el4.rf.noarch.rpm' • yum localinstall perl-SOAP-Lite-0.69-1.el4.rf.noarch.rpm

  7. Nicosia, 18 March 2010 Installations • yum install lcg-CA • yum install glite-UI glite-MON • yum install lcg-CE • yum install glite-WMS glite-LB • yum install glite-WN TORQUE_client

  8. Nicosia, 18 March 2010 Configuring the Middleware • Using the YAIM configuration tool • Configuring multiple node types on the same physical host • lcg CE + BDII_site : not recommended when the lcg CE is subjected to a heavy load. In that case the site BDII may stop working and the whole site will stop being published properly. • WMS+LB • WN + batch system client or MPI • lcg CE or cream CE + batch system server + batch system utils • Installing and Configuring a batch system • The Torque/PBS batch system • cd /etc/yum.repos.d/ • wget http://grid-deployment.web.cern.ch/grid-deployment/glite/repos/3.1/glite-TORQUE_server.repo • wget http://grid-deployment.web.cern.ch/grid-deployment/glite/repos/3.1/glite-TORQUE_client.repo • wget http://grid-deployment.web.cern.ch/grid-deployment/glite/repos/3.1/glite-TORQUE_utils.repo • yum update • yum install the_necessary_metapackage_

  9. Nicosia, 18 March 2010 Configuring the Middleware • Place the configuration files: • users.conf • groups.conf • site-info.def (cp /root/ce201/etc/ /opt/glite/yaim) • cd /opt/glite/yaim/bin/ • yaim -c -s site-info.def -n lcg-CE -n TORQUE_server -n TORQUE_utils • yaim -c -s /opt/glite/yaim/etc/site-info.def -n glite-WMS -n glite-LB • yaim -c -s /opt/glite/yaim/etc/site-info.def -n glite-MON glite-UI • yaim -c -s /opt/glite/yaim/etc/site-info.def -n glite-WN TORQUE_clent

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