public function testDiscoveryWithBackoffWorksWithSentinelsTemporarilyUnreachable()
{
// disable sentinel on all nodes
$this->disableSentinelAt('192.168.50.40');
$this->disableSentinelAt('192.168.50.41');
$this->disableSentinelAt('192.168.50.30');
// we need a factory to create the clients
$clientFactory = new PredisClientCreator();
// we need an adapter for each sentinel client too!
$clientAdapter = new PredisClientAdapter($clientFactory, Client::TYPE_SENTINEL);
$sentinel1 = new Client('192.168.50.40', '26379', $clientAdapter);
$clientAdapter = new PredisClientAdapter($clientFactory, Client::TYPE_SENTINEL);
$sentinel2 = new Client('192.168.50.41', '26379', $clientAdapter);
$clientAdapter = new PredisClientAdapter($clientFactory, Client::TYPE_SENTINEL);
$sentinel3 = new Client('192.168.50.30', '26379', $clientAdapter);
// now we can start discovering where the master is
$masterDiscovery = new MasterDiscovery('integrationtests');
$masterDiscovery->addSentinel($sentinel1);
$masterDiscovery->addSentinel($sentinel2);
$masterDiscovery->addSentinel($sentinel3);
// configure a backoff strategy
$incrementalBackoff = new Incremental(500, 1.5);
$incrementalBackoff->setMaxAttempts(10);
$masterDiscovery->setBackoffStrategy($incrementalBackoff);
$masterDiscovery->setBackoffObserver(array($this, 'enableAllSentinels'));
// try to discover the master
$master = $masterDiscovery->getMaster();
// after master discovery, at least one sentinel is connected
$this->assertTrue((bool) ($sentinel1->isConnected() | $sentinel2->isConnected() | $sentinel3->isConnected()), 'At least one of the sentinels is back online');
// master discovery returned a client to the correct node
$this->assertInstanceOf('\\PSRedis\\Client', $master, 'Master is returned after successful master discovery');
$this->assertAttributeEquals('192.168.50.40', 'ipAddress', $master, 'The master ip returned is correct');
$this->assertAttributeEquals('6379', 'port', $master, 'The master ip returned is correct');
}
public function testThatAnObserverIsCalledOnBackoff()
{
$this->observedBackoff = false;
$backoffOnce = new Incremental(0, 1);
$backoffOnce->setMaxAttempts(2);
$sentinel1 = $this->mockOfflineSentinel();
$sentinel2 = $this->mockOnlineSentinelWithMasterSteppingDown();
$masterDiscovery = new MasterDiscovery('online-sentinel');
$masterDiscovery->setBackoffStrategy($backoffOnce);
$masterDiscovery->addSentinel($sentinel1);
$masterDiscovery->addSentinel($sentinel2);
$masterDiscovery->setBackoffObserver(array($this, 'backoffObserver'));
$masterDiscovery->getMaster();
$this->assertTrue($this->observedBackoff, 'When backing off an observer can be called');
}
