1. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America Instalación y configuración de CE+WN Alicia Acero Fernández CIEMAT 6 th EELA Tutorial Madrid 16-20/10/2006

2. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 What is a Computing Element (CE) ? What is a Torque Server ? What is a Worker Node? How to install and configure a Computing Element with Torque Server. How to install and configure a Worker Node with Torque Computing Element Testing Outline

3. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 What is CE? The CE is a service representing a computing resource. Its main functionality is job management (job submission, job control, etc.). For job submission, the CE can work in: –push model –push model (where the job is pushed to a CE for its execution). –pull model –pull model (where the CE asks the WMS for jobs).

4. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 What is Torque? TORQUETORQUE (Tera-scale Open-source Resource and QUEue management) is a resource management providing control over batch jobs and distribuited compute resource. The Torque System is composed by a: –pbs_server –pbs_server which provides the basic batch services such as receiving/creating a batch job or protecting the job against system crashes. –job_scheduler –job_scheduler which contains the site's policy used to decide which job must be executed. –pbs_mom –pbs_mom which places the job into execution. It is also responsible for returning the job’s output to the user.

5. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 What is a Worker Node? The Worker Node (WN) is a set of clients required to run jobs sent by the CE via the Local Resource Management System. It currently includes the: –gLite I/O Client, –the Logging and Bookkeeping Client, –the R-GMA Client and –the WMS Checkpointing library.

6. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing CE + Torque Server WN + Torque

7. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Preliminary and common steps Start from an instalation of SLC 3.0.X Install JAVA SDK Install and configure ntp daemon Install the latest version of YAIM Install the latest version of GILDA YAIM Install X.509 host certificates (it is necessary for CE, SE and RB) /etc/grid-security and check their file permissions. Install the middleware

8. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing pre-requisites JAVA is not included in distribution. Install it separately (>= 1.4.2_08) http://java.sun.com/j2se/1.4.2/download.html chmod +x j2sdk-1_4_2_12-linux-i586-rpm.bin./j2sdk-1_4_2_12-linux-i586-rpm.bin rpm -ivh j2sdk-1_4_2_12-linux-i586.rpm Preparing... ########################################### [100%] 1:j2sdk ########################################### [100%]

9. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing pre-requisites Depending on the packages set you selected when installing the operating system, it may be possible that lam package is installed on your WN. Please remove lam. apt-get remove lam There is a known installation conflict between the 'torque-clients' rpm and the 'postfix' mail client (Savannah. bug #5509). If you are going to install Torque, uninstall postfix package apt-get remove postfix Check the FQDN hostname –Ensure that the hostnames of your machines are correctly set. Run the command: hostname -f

10. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing pre-requisites Download and install latest version of glite-yaim- latest.rpm on all your grid nodes: http://grid-deployment.web.cern.ch/grid- deployment/gis/yaim/ rpm -ivh glite-yaim-latest.rpm Download and install the latest version of gilda_ig- yaim-latest on all your grid nodes: http://grid018.ct.infn.it/apt/gilda_app-i386/utils rpm –ivh gilda_ig-yaim-latest

11. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing pre-requisites Request host certificates for the CE to a CA – https://gilda.ct.infn.it/CA/mgt/restricted/srvreq.phphttps://gilda.ct.infn.it/CA/mgt/restricted/srvreq.php Create the directory /etc/grid-security and copy host certificates (hostcert.pem and hostkey.pem) in it. Change the permisions –chmod 644 hostcert.pem –chmod 400 hostkey.pem If you plan to use certificates released by unsupported EGEE CA’s, be sure that their public key and CRLs (usually distributed with a rpm) are installed. –The CRL of the VO GILDA are available from https://gilda.ct.infn.it/RPMS/ca_GILDA-1.0-1.i386.rpm

12. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing pre-requisites Syncronization among all gLite nodes is mandatory. Install ntp if not already available for your system: – apt-get install ntp – yum install ntp Add your time server in /etc/ntp.conf –restrict hora.rediris.es mask 255.255.255.255 nomodify notrap noquery –server hora.rediris.es –(you can use ntp-1.infn.it – IP 193.206.144.10) Edit /etc/ntp/step-tickers adding your(s) time server(s) hostname If you are running a firewall, you will have to allow inbound comminication on the NTP port: –-A INPUT -s -p udp --dport 123 -j ACCEPT Activate the ntpd service with the following commands:  ntpdate  service ntpd start  chkconfig ntpd on –You can check ntpd’s status with :  ntpq -p

13. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing CE+Torque Server All the configuration values to sites have to be configured in a site configuration file (site-info.def) using key-value pairs. This file is shared among all the different gLite node types. So edit once and keep it in a safe place Create a copy of /opt/glite/yaim/examples/gilda_ig-site- info.def template (coming from the lcg-yaim RPM) to your reference directory for the installation (e.g. /root): – cp /opt/glite/yaim/examples/gilda_ig-site-info.def /root/my-site-info.def A good syntax test for your site configuration file is to try to source it manually running the command: – source my-site-info.def

14. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Customize gilda_ig-site-info.def Open file /root/my-site-info.def and set the values according to your grid environment: MY_DOMAIN=fdi.ucm.es CE_HOST=grid-xx.$MY_DOMAIN RB_HOST=arquimedes.rediris.es WMS_HOST=glite-rb.ct.infn.it PX_HOST=grid001.ct.infn.it BDII_HOST=euclides.rediris.es MON_HOST=aliserv6.ct.infn.it FTS_HOST=fts.ct.infn.it REG_HOST=rgmasrv.ct.infn.it :

15. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 OS_REPOSITORY="rpm http://sunsite.rediris.es/ftp/volumes/vol2/grid.infn.it/rep slc306-i386 os updates extras " LCG_REPOSITORY="rpm http://sunsite.rediris.es/ftp/volumes/vol2/grid.infn.it/rep glite_sl3-i386 3_0_0 3_0_0_externals 3_0_0_updates" IG_REPOSITORY="rpm http://sunsite.rediris.es/ftp/volumes/vol2/grid.infn.it/rep ig_sl3-i386 3_0_0 utils“ GILDA_REPOSITORY="rpm http://sunsite.rediris.es/ftp/volumes/vol2/grid.infn.it/rep gilda_app-i386 app 3_0_0" CA_REPOSITORY="rpm http://sunsite.rediris.es/ftp/volumes/vol2/grid.infn.it/rep glite_sl3-i386 security" Customize gilda_ig-site-info.def

16. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 JAVA_LOCATION="/usr/java/j2sdk1.4.2_12“ MYSQL_PASSWORD=rediris06 APEL_DB_PASSWORD="APELDB_PWD" SITE_EMAIL=info@rediris.es SITE_NAME=“EELA Tutorial” SITE_LOC=“Madrid,Spain" SITE_LAT=37.5 SITE_LONG=15.152 SITE_WEB="http://www.eu-eela.org." SITE_TIER="EELA GILDA tutorial" SITE_SUPPORT_SITE=“root@localhost" Customize gilda_ig-site-info.def

17. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing CE+Torque Server JOB_MANAGER=lcgpbs CE_BATCH_SYS=pbs BATCH_BIN_DIR=/usr/bin BATCH_VERSION=torque-1.0.1b CE_CPU_MODEL=PIII CE_CPU_VENDOR=intel CE_OS="Scientific Linux SL" CE_OS_RELEASE="SL" CE_OS_VERSION=3.0.6 CE_MINPHYSMEM=1024 CE_MINVIRTMEM=2048 CE_SMPSIZE=2 CE_SI00=1000 CE_SF00=1200 CE_OUTBOUNDIP=TRUE CE_INBOUNDIP=TRUE CE_RUNTIMEENV="a list of tags"

18. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing CE+Torque Server Edit the file /opt/glite/yaim/etc/gilda_ig-wn-list.conf and insert your WN hostnames grid-xx.fdi.ucm.es

19. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing CE+Torque Server Copy from /opt/lcg/yaim/examples to /opt/lcg/yaim the files: site-info.def, users.conf, wn-list.conf and modify them according to your site. Install the node /opt/glite/yaim/scripts/gilda_ig_install_node /root/my-site-info.def GILDA_ig_CE_torque Configure the node /opt/glite/yaim/scripts/gilda_ig_configure_node /root/my-site-info.def GILDA_ig_CE_torque

20. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing CE+Torque Server If the installation is performed successfully, the following components are installed: –gLite in /opt/glite –Condor in /opt/condor-x.y.x (where x.y.z is the current condor version) –Globus in /opt/globus –Tomcat in /var/lib/tomcat5 –Torque in /var/spool/pbs

21. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing CE+Torque Server /etc/ssh/sshd_configEdit /etc/ssh/sshd_config and add the following lines at the end: HostbasedAuthentication yes IgnoreUserKnownHosts yes IgnoreRhosts yes Restart the server with: /sbin/service sshd restart

22. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing CE+Torque Server /etc/ssh/ssh_know_hostsOn the CE generate an updated version of /etc/ssh/ssh_know_hosts by running: /opt/edg/sbin/edg-pbs-knownhosts Copy that file into all the WorkerNodes.

23. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Installing WN Server Install the node /opt/glite/yaim/scripts/gilda_ig-install_node /root/my- site-info.def GILDA_ig_WN_torque_noapp Configure the node /opt/glite/yaim/scripts/gilda_ig-configure_node /root/my-site-info.def GILDA_ig_WN_torque_noapp

24. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Computing Element Testing

25. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 CE Testing Log as a new created user (e.g gilda003) Edit a file and write #!/bin/sh sleep 10 hostname Save it (as test.sh) and set the permission of execution chmod 700 test.sh Submit the job: qsub –q short test.sh Test the status of the job qstat -a

26. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 CE Testing After the job execution there are two output files: [dteam048@bhp0101 dteam048]$ ls test.sh test.sh.e12 test.sh.o12 And show these files: –Error file [dteam048@bhp0101 dteam048]$ cat test.sh.e12 [dteam048@bhp0101 dteam048]$ –Output file [dteam048@bhp0101 dteam048]$ cat test.sh.o12 bhp0101.ciemat.es

27. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 References https://gilda.ct.infn.it/docs/GILDAsiteinstall-3_0_0.html https://grid.ct.infn.it/twiki/bin/view/GILDA/GliteElementI nstallationhttps://grid.ct.infn.it/twiki/bin/view/GILDA/GliteElementI nstallation

28. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 6 th EELA Tutorial, Madrid, 16-20.10.2006 Questions