From 7cf6500f92b6841d5a090270fc464b57b497fa7f Mon Sep 17 00:00:00 2001 From: Ralf Becker Date: Wed, 2 Oct 2013 10:33:44 +0000 Subject: [PATCH] docu update --- phpgwapi/inc/class.egw_cache.inc.php | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/phpgwapi/inc/class.egw_cache.inc.php b/phpgwapi/inc/class.egw_cache.inc.php index c9d7f723e0..c85f4fcb3d 100644 --- a/phpgwapi/inc/class.egw_cache.inc.php +++ b/phpgwapi/inc/class.egw_cache.inc.php @@ -39,6 +39,12 @@ * * The tree and instance wide cache uses a certain provider class, to store the data * eg. in memcached or if there's nothing else configured in the filesystem (eGW's temp_dir). + * + * "Admin >> clear cache and register hooks" allways only clears instance level cache of + * calling instance. It never clears tree level cache, which makes it important to set + * resonable expiry times or think about an other means of clearing that particular item. + * (Not clearing of tree-level cache is important, as regenerating it is an expensive + * operation for a huge scale EGroupware hosting operation.) */ class egw_cache {