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Add version and path to cache prefix 

Prevents to have the cache reused by other instances on the server which have possible the same instance ID and also invalidates older cache entries after an upgrade which can cause unwanted side-effects.

Impact for deployment: The same cache will only get used if ownCloud is installed with the same version and under the same path. But this should be a basic requirement anyways.
This commit is contained in:
Lukas Reschke 2015-03-17 11:56:00 +01:00
parent d96b97043b
commit c233f2c90b
2 changed files with 9 additions and 1 deletions
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3
lib/private/memcache/cache.php
View File

@ -21,6 +21,9 @@ abstract class Cache implements \ArrayAccess, \OCP\ICache {
$this->prefix = $prefix;
}
/**
* @return string Prefix used for caching purposes
*/
public function getPrefix() {
return $this->prefix;
}

7
lib/private/server.php
View File

@ -157,8 +157,13 @@ class Server extends SimpleContainer implements IServerContainer {
});
$this->registerService('MemCacheFactory', function ($c) {
$config = $c->getConfig();
$v = \OC_App::getAppVersions();
$v['core'] = implode('.', \OC_Util::getVersion());
$version = implode(',', $v);
$instanceId = \OC_Util::getInstanceId();
return new \OC\Memcache\Factory($instanceId,
$path = \OC::$SERVERROOT;
$prefix = md5($instanceId.'-'.$version.'-'.$path);
return new \OC\Memcache\Factory($prefix,
$config->getSystemValue('memcache.local', null),
$config->getSystemValue('memcache.distributed', null)
);