1. Ninth EELA Tutorial for Users and Managers www.eu-eela.org E-infrastructure shared between Europe and Latin America BDII Server Installation Yubiryn Ramírez G. ULA – Venezuela. Ninth EELA Tutorial Users and System Administrators. Bogotá, 09.03.2007.

2. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 2 This presentation is based on LCG and gLite manuals and previous EELA tutorials

3. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 3 Outline Information System Overview How to install a BDII Server BDII customization and references

4. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 4 Information System Overview The Information System (IS) provides information about grid´s resources and their actual status.

5. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 5 Information System Levels Resource level: Grid Resource Information Server (GRIS) –One GRIS on top of each CE, SE, RB, MyProxy (no WNs). –Sensors and scripts get status of concrete resources statically (e.g. GlueCEUniqueID) or dynamically (e.g. GlueCEStateWaitingJobs) Site level: Grid Index Information Server (GIIS) –Compiles all the information of the different GRISs in a site. –LCG-2 recommends using a BDII instead of a GIIS  Improves robustness and stability.  Called the site BDII. Top level: Berkeley DB Information Index (BDII) –Keeps all Grid information about the VOs (generally only one). –Stores information from local BDIIs or GIISs in its database. –Only queries sites that are included in a configuration file.

6. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 6 BDII Users and other Grid services (such as the RB) can query BDIIs to get information about the Grid status. Each BDII collects information from the site GIISes (or local BDII) defined in a configuration file, which is accessed through a web interfaces. Every two minutes a cron-job runs a script and collects information (pull model) from all the GIISes (local BDII) listed in the configuration file.

7. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 7 BDII Each site can run a BDII. It collects the information coming from the BDIIs/GIISs At each site, a site GIIS collects the information given by the GRISs Local GRISs run on CE, SE, RB, MyProxy at each site and report dynamic and static information Abbreviations: BDII: Berkeley DataBase Information Index GIIS: Grid Index Information Server GRIS: Grid Resource Information Server From LCG2.3.0 site GIIS has been replaced by “site” BDII

8. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 8 BDII RB Local GRIS SE Local GRIS CE Local GRIS BDII-A BDII-B SE Local GRIS SE Local GRIS CE Local GRIS SE Local GRIS BDII-C Site 1 Site 2 Site 3 Site BDII

9. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 9 Installing BDII Server

10. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 10 Pre-requisites Start from the base machine you installed in the INTRODUCTORY tutorial Verify that these packages are installed and properly configured: –Java SDK –Ntp daemon –CA_Gilda rpm –edg_VO_Gilda rpm –glite-yaim-3.0.0-11 –gilda_ig-yaim-3.0.0-37 Also check that your host certificates are present in /etc/grid- security and have proper permissions: -rw-r--r-- 1 root root1127Jun 14 12:27 hostcert.pem -r-------- 1 root root887 Jun 14 12:28 hostkey.pem

11. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 11 Glite and Gilda Metapackages MatapackageNode typeDescription Glite-BDIIBDIIA top level BDII GILDA_ig_BDII Gilda BDII GILDA_ig_RB_BDII Gilda RB + BDII Usual combinación: RB and BDII CE and BDII: doesn´t work

12. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 12 site-info.def BDII_FCR: URL of the Freedom of Choice for Resources. (Web interface that provides a facility for VOs to modify resources list available for them on a BDII level, based on their own decision or Sites Functional Test (SFT) results) BDII_HOST: BDII Hostname. BDII_HTTP_URL: List of the GIIS (or site BDII) from which the BDII server fetches the information BDII_REGIONS: List of nodes publishing information on the BDII. BDII_REGIONS="CE SE RB LFC VOBOX PX FTS MON“ BDII_CE_URL="ldap://$CE_HOST:2135/mds-vo-name=local,o=grid" BDII_SE_URL="ldap://$CLASSIC_HOST:2135/mds-vo-name=local,o=grid" … BDII_FTS_URL="ldap://$FTS_HOST:2170/mds-vo-name=resource,o=grid" BDII_MON_URL="ldap://$MON_HOST:2135/mds-vo-name=local,o=grid"

13. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 13 site-info.def Copy http://mnto04.uniandes.edu.co/Base/gilda_ig- site-info.def http://mnto04.uniandes.edu.co/Base/gilda_ig- site-info.def into /root/my-site-info.def and edit these fields: BDII_HOST=eventogridXX.uniandes.edu.co

14. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 14 Installation and Configuration Install the BDII server: /opt/glite/bin/gilda_ig_install_node /root/my-site- info.def GILDA_ig_BDII Configure the BDII server: /opt/glite/bin/gilda_ig_configure_node /root/my-site- info.def GILDA_ig_BDII

15. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 15 Firewall configuration Be sure that your firewall is open for bdii listening port 2170: In /etc/sysconfig/iptables add: -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 2170 -j ACCEPT service iptables restart

16. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 16 BDII Server Testing & Customization

17. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 17 BDII testing Issue an ldapsearch to check if BDII is correctly publishing sites informations: ldapsearch -x -h -p 2170 -b 'mds-vo- name=local,o=grid‘ Log into a LCG User Interface machine and use lcg- infosites: export LCG_GFAL_INFOSYS= :2170 lcg-infosites --vo gilda ce

18. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 18 BDII customization BDII configuration file can be found in /opt/bdii/etc/bdii.conf

19. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 19 BDII customization BDII_PORT_READ=2170 BDII_PORTS_WRITE="2171 2172 2173" BDII_USER=edguser BDII_BIND=mds-vo-name=local,o=grid BDII_PASSWD=26082 BDII_SEARCH_FILTER='(|(objectClass=GlueSchemaVersion)(objectClass =GlueTop))' BDII_SEARCH_TIMEOUT=30 BDII_BREATHE_TIME=60  every 2 minute BDII cache is refreshed BDII_AUTO_UPDATE=yes  the list of GIIS is dynamic (no=static) BDII_AUTO_MODIFY=no BDII_DIR=/opt/bdii/ BDII_UPDATE_URL=http://grid018.ct.infn.it/fileadmin/bdii/glite-bdii- update.conf BDII_UPDATE_LDIF=http:// SLAPD=/usr/sbin/slapd SLAPADD=/usr/sbin/slapadd

20. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 20 BDII customization BDII log files in /opt/bdii/var/bdii.log

21. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 21 BDII customization (II) Example: –Change BDII_UPDATE_URL to: http://grid-deployment.web.cern.ch/grid-deployment/gis/lcg2- bdii/dteam/lcg2-all-sites.conf –Restart the service with: /etc/init.d/bdii restart –Give a look to the new information published by the service

22. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 22 BDII customization (III) The file /opt/bdii/etc/bdii-update.conf contains the list of GIIS:... INFN-CATANIA ldap://grid010.ct.infn.it:2170/mds-vo- name=infn-catania,o=grid # 2.6.0 INFN-CNAF ldap://grid011f.cnaf.infn.it:2170/mds-vo- name=infn-cnaf,o=grid # 2.6.0 INFN-PADOVA ldap://gilda-ce-01.pd.infn.it:2170/mds- vo-name=infn-padova,o=grid # 2.6.0 IISAS-BRATISLAVA ldap://dgt01.ui.savba.sk:2170/mds- vo-name=iisas-gilda,o=grid # 2.6.0 ULA-MERIDA ldap://grid006.cecalc.ula.ve:2170/mds-vo- name=ula-merida,o=grid

23. E-infrastructure shared between Europe and Latin America Bogotá, Ninth EELA Tutorial, 09.03.2007 23 References LCG-2 User Guide https://edms.cern.ch/file/454439//LCG-2-UserGuide.html gLite 3.0 User Guide https://edms.cern.ch/file/722398/1.1/gLite-3-UserGuide.pdf gLite 3.0 Generic Installation and Configuration Guide http://grid-deployment.web.cern.ch/grid- deployment/documentation/LCG2-Manual-Install/ BDII Documentation: https://twiki.cern.ch/twiki//bin/view/EGEE/BDII https://twiki.cern.ch/twiki/bin/view/LCG/BdiiNotes