private function get_redis_summary($server_descriptors, $promise_only = false)
{
$servers = array();
foreach ($server_descriptors as $i) {
foreach ($i['servers'] as $host_port) {
if (!isset($servers[$host_port])) {
$servers[$host_port] = array('password' => $i['password'], 'dbid' => $i['dbid'], 'module_names' => array($i['name']));
} else {
$servers[$host_port]['module_names'][] = $i['name'];
}
}
}
$summary = array();
foreach ($servers as $host_port => $i) {
$cache = Cache::instance('redis', array('servers' => array($host_port), 'password' => $i['password'], 'dbid' => $i['dbid']));
if ($promise_only) {
$stats = array();
} else {
$stats = $cache->get_statistics();
}
if (isset($stats['keyspace_hits']) && $stats['keyspace_misses']) {
$stats['_keyspace_total'] = (int) $stats['keyspace_hits'] + (int) $stats['keyspace_misses'];
}
$id = md5($host_port);
$summary[$id] = array('name' => $host_port, 'module_names' => $i['module_names'], 'size_used' => Util_UsageStatistics::bytes_to_size2($stats, 'used_memory'), 'hit_rate' => Util_UsageStatistics::percent2($stats, 'keyspace_hits', '_keyspace_total'), 'expirations_per_second' => Util_UsageStatistics::value_per_second($stats, 'expired_keys', 'uptime_in_seconds'), 'evictions_per_second' => Util_UsageStatistics::value_per_second($stats, 'evicted_keys', 'uptime_in_seconds'));
}
return $summary;
}
