/**
* 创建 RRD 库
*
* @param string $monitor_id
* @static
* @access public
* @return void
*/
public static function create($monitor_id, $force = false)
{
$file_name = PATH_SWAN_RRD . $monitor_id . '.rrd';
if (file_exists($file_name) && !$force) {
return $file_name;
}
// 创建 rrd 数据库
if (!isset(self::$__redis)) {
self::$__redis = \swan\redis\sw_redis::singleton();
}
$monitor_info = self::$__redis->get(SWAN_CACHE_MONITOR_PREFIX . $monitor_id);
if (!$monitor_info) {
throw new sw_exception('create rrd file faild. reason is get monitor info fail.');
}
$monitor_info = json_decode($monitor_info, true);
$madapter_id = $monitor_info['madapter_id'];
$madapter_info = self::$__redis->get(SWAN_CACHE_MADAPTER_PREFIX . $madapter_id);
if (!$madapter_info) {
throw new sw_exception('create rrd file faild. reason is get madapter info fail.');
}
$madapter_info = json_decode($madapter_info, true);
$rrd_creater = new \RRDCreator($file_name, "now -10d", $madapter_info['steps']);
// 获取 archive
$archives = self::$__redis->get(SWAN_CACHE_MADAPTER_ARCHIVE_PREFIX . $madapter_id);
if (!$archives) {
throw new sw_exception('create rrd file faild. reason is get monitor archive fail.');
}
$archives = json_decode($archives, true);
foreach ($archives as $archive) {
$archive = self::$__cf_types[$archive['cf_type']] . ':' . $archive['xff'] . ':' . $archive['steps'] . ':' . $archive['rows'];
$rrd_creater->addArchive($archive);
}
// 获取 metrics
$metric_ids = self::$__redis->smembers(SWAN_CACHE_METRIC_IDS . $madapter_id);
if (empty($metric_ids)) {
throw new sw_exception('not exists metric this monitor. monitor:' . $monitor_id);
}
foreach ($metric_ids as $metric_id) {
// 获取metric info
$metric_info = self::$__redis->get(SWAN_CACHE_METRIC_PREFIX . $madapter_id . '_' . $metric_id);
if (!$metric_info) {
throw new sw_exception('create rrd file faild. reason is get monitor metric info fail.');
}
$metric_info = json_decode($metric_info, true);
if (!$metric_info['tmax']) {
$metric_info['tmax'] = $monitor_info['steps'] * 2;
}
$ds_data = $metric_info['metric_name'] . ':' . self::$__dst_types[$metric_info['dst_type']] . ':' . $metric_info['tmax'] . ':' . $metric_info['vmin'] . ':' . $metric_info['vmax'];
$rrd_creater->addDataSource($ds_data);
}
try {
$rrd_creater->save();
} catch (\Exception $e) {
throw new sw_exception($e);
}
return $file_name;
}
public function testCreateAndUpdate()
{
$rrdFile = __DIR__ . "/speed.rrd";
$rrd = new Rrd($rrdFile);
$timestamp = new DateTimeImmutable('2016-01-01 13:37:42');
if (file_exists($rrd->getFileName())) {
unlink($rrd->getFileName());
}
if (!file_exists($rrd->getFileName())) {
$creator = new RRDCreator();
$creator->setFileName($rrd->getFileName());
$creator->setStart($timestamp);
$creator->setStep(60);
$dataSource = new RrdDataSource();
$dataSource->setName('downstream');
$dataSource->setType(RrdDataSource::TYPE_COUNTER);
$creator->addDataSource($dataSource);
$dataSource = new RrdDataSource();
$dataSource->setName('upstream');
$dataSource->setType(RrdDataSource::TYPE_COUNTER);
$creator->addDataSource($dataSource);
$archive = new RrdArchive();
$archive->setConsolidation(RrdArchive::CONSOLIDATION_AVERAGE);
$archive->setSteps(60);
$archive->setRows(60 * 24);
$creator->addArchive($archive);
$archive = new RrdArchive();
$archive->setConsolidation(RrdArchive::CONSOLIDATION_AVERAGE);
$archive->setSteps(60 * 60);
$archive->setRows(72);
$creator->addArchive($archive);
$creator->save();
}
$rrd->setDateTime($timestamp->add(new DateInterval('PT1M')));
$rrd->update(['downstream' => 1024, 'upstream' => 768]);
$rrd->setDateTime($timestamp->add(new DateInterval('PT2M')));
$rrd->update(['downstream' => 1024, 'upstream' => 768]);
$this->assertSame('2016-01-01 13:39:42', $rrd->getDateTime()->format('Y-m-d H:i:s'));
$this->assertSame('2016-01-01 13:39:42', $rrd->getLastUpdate()['timestamp']->format('Y-m-d H:i:s'));
}