Oct 17 – 21, 2016
US/Pacific timezone

Introduction of load balancers at a Tier-1 site

Oct 20, 2016, 2:25 PM
Building 50 Auditorium (LBNL)

Building 50 Auditorium


Berkeley, CA 94720
Basic IT Services Basic IT Services


Ian Collier (STFC - Rutherford Appleton Lab. (GB))


Historically at the RAL Tier-1 we have always directly exposed public-facing services to the internet via static DNS entries. This is far from ideal as it means that users will experience connection failures during server maintenance (both planned and unplanned) and any changes to the servers behind a particular service require DNS changes. Since April we have been using in production HAProxy and Keepalived to facilitate a highly-available load balancer in front of FTS3 in order to avoid the issues resulting from the use of DNS aliases. We are also making extensive use of HAProxy and Keepalived for our OpenStack cloud which is under development. Here we will describe our setup, experience with load balancers for FTS3 and OpenStack as well as our progress and plans for other services.

Primary authors

Andrew David Lahiff (STFC - Rutherford Appleton Lab. (GB)) Ian Collier (STFC - Rutherford Appleton Lab. (GB))

Presentation materials