protected function doGetStats()
{
$stats = $this->couchbase->getStats();
$servers = $this->couchbase->getServers();
$server = explode(":", $servers[0]);
$key = $server[0] . ":" . "11210";
$stats = $stats[$key];
return [Cache::STATS_HITS => $stats['get_hits'], Cache::STATS_MISSES => $stats['get_misses'], Cache::STATS_UPTIME => $stats['uptime'], Cache::STATS_MEMORY_USAGE => $stats['bytes'], Cache::STATS_MEMORY_AVAILABLE => $stats['limit_maxbytes']];
}