Description Stefan Gohmann 2013-05-10 09:21:14 CEST

Currently the performance guide recommends to disable the cache invalidation on changes. The check is done every 15 minutes. Which way better is depends on the interval of group changes. 

If changes on group memberships are mostly done at night, it is better to use the cache invalidation on changes or it might be a good idea  to re-create the cache in a real large environment only once a day. For that nss/group/cachefile/invalidate_interval should be introduced.

If the generation is a problem and a lot of servers are used, it might be better to enable the cache generation only on one system and distribute the cache file via ssh / sftp.

The performance guide should introduce all variables and some examples should be explained.