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WORK IN PROGRESS Notes about Installation and Configuration of a CREAM Computing Element using an external Torque server as batch system and ARGUS as authorization method

  • These notes are provided by site admins on a best effort base as a contribution to the IGI communities and MUST not be considered as a subsitute of the Official IGI documentation.
  • This document is addressed to site administrators responsible for middleware installation and configuration.
  • The goal of this page is to provide some hints and examples on how to install and configure an IGI CREAM CE service based on EMI middleware, in no cluster mode, with TORQUE as batch system on a different host and using an external ARGUS server for the users authorization

References

  1. About IGI - Italian Grid infrastructure
  2. About IGI Release
  3. IGI Official Installation and Configuration guide
  4. EMI CREAM System Administrator Guide
  5. Yaim Guide
  6. site-info.def yaim variables
  7. CREAM yaim variables
  8. TORQUE Yaim variables
  9. CREAM v.1.13
  10. CREAM TORQUE module v. 1.0.0-1
  11. Troubleshooting Guide for Operational Errors on EGI Sites
  12. Grid Administration FAQs page

Service installation

O.S. and Repos

  • Starts from a fresh installation of Scientific Linux 5.x (x86_64).
# cat /etc/redhat-release 
Scientific Linux SL release 5.7 (Boron) 

* Install the additional repositories: EPEL, Certification Authority, UMD

# yum install yum-priorities yum-protectbase
# cd /etc/yum.repos.d/
# rpm -ivh http://mirror.switch.ch/ftp/mirror/epel//5/x86_64/epel-release-5-4.noarch.rpm
# wget http://repo-pd.italiangrid.it/mrepo/repos/egi-trustanchors.repo
# rpm -ivh http://repo-pd.italiangrid.it/mrepo/EMI/1/sl5/x86_64/updates/emi-release-1.0.1-1.sl5.noarch.rpm
# wget http://repo-pd.italiangrid.it/mrepo/repos/igi/sl5/x86_64/igi-emi.repo

  • Be sure that SELINUX is disabled (or permissive). Details on how to disable SELINUX are here:

# getenforce 
Disabled

  • Check the repos list (sl-*.repo are the repos of the O.S. and they should be present by default).

# ls /etc/yum.repos.d/
egi-trustanchors.repo  
emi1-third-party.repo emi1-base.repo emi1-updates.repo
igi-emi.repo
epel.repo epel-testing.repo  
sl-contrib.repo sl-fastbugs.repo sl-security.repo sl-testing.repo sl-debuginfo.repo sl.repo sl-srpms.repo
IMPORTANT: remove the dag repository if present

yum install

# yum clean all
Loaded plugins: downloadonly, kernel-module, priorities, protect-packages, protectbase, security, verify, versionlock
Cleaning up Everything

# yum install ca-policy-egi-core
# yum install xml-commons-apis
# yum install emi-cream-ce
# yum install emi-torque-utils
# yum install glite-dgas-common glite-dgas-hlr-clients glite-dgas-hlr-sensors glite-dgas-hlr-sensors-producers yaim-dgas
# yum install nfs-utils

see here for details

-- AlessandroPaolini - 2012-02-09

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Topic revision: r1 - 2012-02-09 - AlessandroPaolini
 
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