Cache Backend memcache und libmemcached do not store raw data

[zfbot]

Jira Information

Original Issue:	ZF-12396
Issue Type:	Improvement
Reporter:	Frank Ruske
Created:	08/31/12
Assignee:	Alexander Veremyev
Components:	Zend_Cache

Description

In Zend_Cache_Backend_Libmemcached::save() and Zend_Cache_Backend_Memcached::save()

You will find the following line:

$result = @$this->_memcache->set($id, array($data, time(), $lifetime), $lifetime);

The Problem is that there will always an array be stored at the memcache server.
There should be an option to store a raw string since automatic_serialization has no affect here.

My hotfix is to remove time() and $lifetime. Since this results in problems for the session memcached handler i use an custom backend for the fix.

$result = $this->_memcache->set($id, $data, $lifetime);

In my setup im reading values stored in memcached directly using the NGINX memcached extension and the $request_uri as memcache key.
If the memcache server has a key matching the $request_uri then the content is directly delivered to the user.
This response will include time() and $lifetime values stored in memcache by the Zend Framework Backend Class. Only if the NGINX memcached Extension has no cache hit the php-fpm backend is called.

[zfbot]

(Originally posted by: Frank Ruske on 09/02/12)

Also Zend_Cache_Backend_Libmemcached::load() and Zend_Cache_Backend_Libmemcached::test()
have to be adjusted.

EQ for LOAD function:

if (true === is_array($tmp)) {
    if (isset($tmp[0])) {
        return $tmp[0];
    }
    // Raw Data returned? 
} elseif (false !== $tmp) {
    return $tmp;
}
return false;

I think best would be to have some option flag like options.saveRawData.

[zfbot]

This issue was ported from the ZF2 Jira Issue Tracker at
http://framework.zend.com/issues/browse/ZF-12396

Known GitHub users mentioned in the original message or comment:

[froschdesign]

We will not add any new features or functionality for ZF1.
Please make your proposal in ZF2. Thanks!