public function getServerInfo($login)
    {
        static $lockAcquired = false;

        if (isset($this->servers[$login])) {
            $cacheKey = $this->_getServerInfoCacheKey($login);
            $cacheResult = $this->serverInfoCache->fetch($cacheKey);
            if ($cacheResult) {
                return $cacheResult;
            } else if (!$lockAcquired) {
                // We don't have the lock, we need to get it before asking the dedicated.

                // Start Protected code.
                $this->semaphore->aquire($cacheKey);
                $lockAcquired = true;

                // Ask for data again, if cache filled from other instance then data from cache, if not wil do a call.
                $data = $this->getServerInfo($login);

                // End protected code.
                $lockAcquired = false;
                $this->semaphore->release($cacheKey);

                return $data;
            } else {
                // We have the lock, data not in cache get data from the server.
                $data = $this->_getServerInfo($login);
                $this->serverInfoCache->save($cacheKey, $data, $this->cacheTimeOutInfo);

                return $data;
            }
        }

        return null;
    }