AGIS CMS Evaluation

AGIS documentation

• Main Documentation Pages: information to install, configure and use the AGIS clients, and how to configure and use the API providing many examples.
• Class diagram
• AGIS twiki: information for service management, developers and administrators of the AGIS service.
• CHEP 2013 poster: poster describing the AGIS architecture.
• CHEP 2013 proceedings: detailed paper on the AGIS architecture.

Installing AGIS

Hardware and software requirements

There are no special hardware requirements for AGIS, the evaluation has been performed using a virtual machine with the following features:

• 4 GB RAM
• 2 cores

A project in Openstack called IT CMS Information System has been created to be able to deploy AGIS testing services.

For the software requirements, python 2.6 is recommended. The VM where AGIS has been evaluated is running SLC6. The following packages are also needed:

• Django: taken from http://swrep/swrep-repository/CERN_ATLAS/x86_64_slc6/Django-1.5.5-1.noarch.rpm
• python-pycurl: installed by default in SLC6: python-pycurl-7.19.0-8.el6.x86_64
• python-simplejson: available in the SL6 repository but needs to manually installed: python-simplejson-2.0.9-3.1.el6.x86_64

Installation steps

The following steps need to be done to install AGIS:

• Get AGIS source code:
  • mkdir /tmp/workspace/; cd /tmp/workspace/
  • svn co https://svn.cern.ch/reps/agis/trunk/base
• Configure AGIS WebUI:
  • cd base/agis_django/projs/web/
  • cp settings_essential.template.py settings_essential.py
  • Define the proper path in settings_essential.py: 'PYTHON_PATH': ['/tmp/workspace/base']
  • By default sqlite3 is used as DB back end but this can be configured to a different back end. The evaluation has been performed with the default configuration.
• Initialize the database:
  • cd base/agis_django/projs/web/
  • pyhon2.6 manage.py syncdb (It asks to create a superuser)
  • python2.6 manage.py syncdb ( This is run twice to populate DB with stub objects )
• Populate AGIS with some content
  • wget http://atlas-agis.cern.ch/docs/json_dir/agis_db_2014_01_20_0916.json -O /tmp/agis_db_2014_01_20_0916.json
  • export PYTHONPATH=/tmp/workspace/base:$PYTHONPATH
  • export DJANGO_SETTINGS_MODULE=agis_django.projs.web.settings
  • python2.6 -m agis_django.apps.agis_crons.crons.manager --cron=ContentLoaderCron -c start  jsonfile=/tmp/agis_db_2014_01_20_0916 process_all=True
• Start the server:
  • python2.6 manage.py runserver host_name:5555

-- MariaALANDESPRADILLO - 22 Jan 2014