[Tickets #13085] Re: Use memcache instead of distributed hashtable in $conf[cache][driver]

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Ticket URL: http://bugs.horde.org/ticket/13085
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  Ticket             | 13085
  Updated By         | arjen+horde at de-korte.org
  Summary            | Use memcache instead of distributed hashtable in
                     | $conf[cache][driver]
  Queue              | Horde Framework Packages
  Version            | Git master
  Type               | Bug
  State              | Feedback
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             | Michael Slusarz
------------------------------------------------------------------------------


arjen+horde at de-korte.org (2014-03-31 14:30) wrote:

>> It is probably due to my limited command of the PHP language, but I
>> assumed that the below function would set $lifetime to '0' if the
>> parameter is not passed (similar to C++):
>
> No, you are correct in your logic, but this class is ONLY for  
> memcache, not other cache drivers. As already stated, memcache  
> doesn't use/need the lifetime parameter here so the default value of  
> zero is irrelevant.

This is how *every* cache driver is defined:

/usr/share/php5/PEAR/Horde/Cache/Storage/Apc.php:    public function  
set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Base.php:    abstract public  
function set($key, $data, $lifetime = 0);
/usr/share/php5/PEAR/Horde/Cache/Storage/Eaccelerator.php:    public  
function set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/File.php:    public function  
set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Hashtable.php:    public  
function set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Memcache.php:    public  
function set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Memoryoverlay.php:    public  
function set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Mock.php:    public function  
set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Mongo.php:    public function  
set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Null.php:    public function  
set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Session.php:    public  
function set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Sql.php:    public function  
set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Stack.php:    public function  
set($key, $data, $lifetime = 0)
/usr/share/php5/PEAR/Horde/Cache/Storage/Xcache.php:    public  
function set($key, $data, $lifetime = 0)

So if the $lifetime argument is not set (like in  
Horde_Service_Weather) *every* cache driver will default to a value of  
'0' and the data that is put into the cache by Horde_Service_Weather  
will not be GC'ed for *any* cache driver. This is the point I'm trying  
to make.