NERSCPowering Scientific Discovery Since 1974

Science Gateways Moving to Berkeley Hardware: Test Your Site!

October 7, 2016 by Annette Greiner

We are in the final phases of moving NERSC science gateway infrastructure from the Oakland Scientific Facility (OSF) to the Computational Research and Theory building (Wang Hall) at the LBNL campus. We are using this opportunity to migrate science gateway applications to new hardware. This move will enable us to more easily maintain the gateway infrastructure and will help ensure smooth growth of our gateway services going forward.

We are asking all maintainers of science gateway applications hosted at NERSC to verify that their applications will work on the new systems. We have set up a test version of the gateways on new hosts, and we need your help to verify the new configuration before placing it into production.

If you have a gateway on please make sure it continues to work on

If you have a gateway on please make sure it continues to work on

If you have a custom URL or domain name, please contact us directly and we will give you special instructions for testing this.

Note that some services may not work out of the box - please contact us and we'll be happy to work with you to migrate your service. 

The plan is to migrate all gateway URLs from the test locations on sgn-ext-01 or sgn-pub-01 to their portal or portal-auth URLs on October 25th. If your site works as expected in the test location, you should not need to change anything for your site to work in production.

Please review the test site by October 15th and let us know of any issues that need to be addressed. If we don't hear from you by then, we will assume the new version is fully functional and put it into production. If you have any issues or questions about the transition, feel free to contact us by submitting a help ticket at

Technologies scheduled for retirement/upgrade include the following:

  • Operating System will be upgraded from Centos 5 to Centos 7
  • Apache will be upgraded from version 2.2 to 2.4
  • LDAP authentication will be replaced by Shibboleth authentication
  • Mod_python will be retired (to be replace by mod_wsgi or uwsgi)
  • Ruby will be retired
  • PHP will be upgraded from version 5.3 to 5.4
  • Python will be upgraded from version 2.6 to 2.7

If your application depends on technologies scheduled for retirement or upgrade, we will work with you to resolve any open issues. Do not hesitate to contact us if you have any questions about this.