Implements the Sentinel API as mentioned on http://redis.io/topics/sentinel.
Sentinel is aware of master and slave nodes in a cluster and returns instances of Credis_Client accordingly.
The complexity of read/write splitting can also be abstract by calling the createCluster() method which returns a
Credis_Cluster object that contains both the master server and a random slave. Credis_Cluster takes care of the
read/write splitting
private function init()
{
/**
* 如果redis使用集群并且加入sentinel做灾备切换，这里可以实现，使用下面的类， 可以实现自动切换，但效率会受到比较大的影响
*/
$sentinel = new Credis_Sentinel(new Credis_Client($this->_cfg['sentinel_host'], $this->_cfg['sentinel_port']));
$this->_cluster = $sentinel->getCluster($this->_cfg['master_name'], $this->_cfg['password']);
}
private function init()
{
if (0) {
/**
* 如果redis使用集群并且加入sentinel做灾备切换，这里可以实现，使用下面的类， 可以实现自动切换，但效率会受到比较大的影响
*/
$sentinel = new Credis_Sentinel(new Credis_Client($this->_cfg['sentinel_host'], $this->_cfg['sentinel_port']));
$this->_cluster = $sentinel->getCluster($this->_cfg['master_name'], $this->_cfg['password']);
} else {
$this->_cluster = new Redis();
}
$this->_cluster->pconnect('127.0.0.1', 6380);
}
public function testNonExistingMethod()
{
$this->setExpectedException('CredisException', 'Unknown sentinel subcommand \'bla\'');
$this->sentinel->bla();
}