/// <summary>
/// Block report is the list of block ids contained in blockstorage
/// </summary>
public static DataNodeProto.BlockReportRequest CreateBlockReport()
{
Guid[] blockList = BlockStorage.GetBlocks();
List <DataNodeProto.UUID> blockIdList = new List <DataNodeProto.UUID>();
for (int i = 0; i < blockList.Length; i++)
{
blockIdList.Add(new DataNodeProto.UUID {
Value = blockList[i].ToString()
});
}
DataNodeProto.BlockReportRequest BlockReportRequest = new DataNodeProto.BlockReportRequest
{
DataNode = new DataNodeProto.DataNode
{
IpAddress = Program.ipAddress
},
BlockList = new DataNodeProto.BlockList
{
BlockId = { blockIdList }
}
};
return(BlockReportRequest);
}
static void Main(string[] args)
{
Console.WriteLine("Initializing DataNode");
string nameNodeIp = args[0];
int port = Convert.ToInt32(args[1]);
// Use ec2 instance manager to get the private ip address of this data node
EC2InstanceManager.InstanceManager instanceManager = EC2InstanceManager.InstanceManager.Instance;
ipAddress = instanceManager.GetPrivateIpAddress();
#if DEBUG
if (ipAddress == null)
{
ipAddress = "localhost";
}
#endif
Server server = new Server
{
Services = { DataNodeProto.DataNodeProto.BindService(new DataNodeHandler()),
ClientProto.ClientProto.BindService(new ClientHandler()) },
//Ports = { new ServerPort(ipAddress, Constants.Port, ServerCredentials.Insecure) }
Ports = { new ServerPort(ipAddress, port, ServerCredentials.Insecure) }
};
Console.WriteLine("Done initializing");
server.Start();
Console.WriteLine("Trying to connect to: " + nameNodeIp);
Channel channel = new Channel(nameNodeIp + ":" + Constants.Port, ChannelCredentials.Insecure);
ConnectionManager.Instance.NameNodeConnection = channel;
var client = new DataNodeProto.DataNodeProto.DataNodeProtoClient(channel);
// Send initial heartbeat to initialize datanode in namenode
var response = client.SendHeartBeat(HeartBeat.CreateHeartBeatRequest(), new CallOptions().WithWaitForReady(true));
Console.WriteLine("Successfully connected to namenode");
// Initialize blockstorage
BlockStorage mBlockStorage = BlockStorage.Instance;
Task heartBeatTask = HeartBeat.SendHeartBeat(client);
Task blockReportTask = BlockReport.SendBlockReport(client);
while (true)
{
}
}
