/**
* {@inheritdoc}
*/
public function getSlaves()
{
if ($this->slaves) {
return array_values($this->slaves);
}
if ($this->updateSentinels) {
$this->updateSentinels();
}
SENTINEL_QUERY:
$sentinel = $this->getSentinelConnection();
try {
$slavesParameters = $this->querySentinelForSlaves($sentinel, $this->service);
foreach ($slavesParameters as $slaveParameters) {
$this->add($this->connectionFactory->create($slaveParameters));
}
} catch (ConnectionException $exception) {
$this->sentinelConnection = null;
goto SENTINEL_QUERY;
}
return array_values($this->slaves ?: array());
}
/**
* Discovers the replication configuration by contacting one of the slaves.
*
* @param NodeConnectionInterface $connection Connection to one of the slaves.
* @param FactoryInterface $connectionFactory Connection factory instance.
*/
protected function discoverFromSlave(NodeConnectionInterface $connection, FactoryInterface $connectionFactory)
{
$response = $connection->executeCommand(RawCommand::create('INFO', 'REPLICATION'));
$replication = $this->handleInfoResponse($response);
if ($replication['role'] !== 'slave') {
throw new ClientException("Role mismatch (expected slave, got master) [{$connection}]");
}
$masterConnection = $connectionFactory->create(array('host' => $replication['master_host'], 'port' => $replication['master_port'], 'alias' => 'master'));
$this->add($masterConnection);
$this->discoverFromMaster($masterConnection, $connectionFactory);
}
