tree 2aa0834bab41856f75ebd847ae9be6ee1b64d5cf
parent bc085fe6982ba1ecf59581ecec4a80532ab91653
author Luca Milanesio <luca.milanesio@gmail.com> 1457561448 +0000
committer Luca Milanesio <luca.milanesio@gmail.com> 1463764279 +0000

Implement group backends cache warm-up

Group backends typically come with their own cache for saving
preciouses roundtrips to fetch groups from remote systems.

Group lookup in LDAP may take a few seconds and on GitHub may even
cause a blockage of API calls because of traffic overload.

Warming up group caches from backends avoid floods of calls and threads
accumulating when the server needs to be restarted during peak hours.

Change-Id: Ifefcee686e18ecdb812f3eed614ffd5672d3db53