| package com.ibm.crail.namenode.rpc.darpc; |
| |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| import java.net.URI; |
| import org.slf4j.Logger; |
| import com.ibm.crail.conf.CrailConfiguration; |
| import com.ibm.crail.rpc.RpcClient; |
| import com.ibm.crail.rpc.RpcConnection; |
| import com.ibm.crail.utils.CrailUtils; |
| import com.ibm.darpc.DaRPCClientEndpoint; |
| import com.ibm.darpc.DaRPCClientGroup; |
| |
| public class DaRPCNameNodeClient implements RpcClient { |
| private static final Logger LOG = CrailUtils.getLogger(); |
| |
| private DaRPCClientGroup<DaRPCNameNodeRequest, DaRPCNameNodeResponse> namenodeClientGroup; |
| |
| public DaRPCNameNodeClient(){ |
| this.namenodeClientGroup = null; |
| } |
| |
| public void init(CrailConfiguration conf, String[] args) throws IOException{ |
| DaRPCConstants.updateConstants(conf); |
| DaRPCConstants.verify(); |
| } |
| |
| public void printConf(Logger logger){ |
| DaRPCConstants.printConf(logger); |
| } |
| |
| @Override |
| public RpcConnection connect(InetSocketAddress address) throws Exception { |
| DaRPCNameNodeProtocol namenodeProtocol = new DaRPCNameNodeProtocol(); |
| this.namenodeClientGroup = DaRPCClientGroup.createClientGroup(namenodeProtocol, 100, DaRPCConstants.NAMENODE_DARPC_MAXINLINE, DaRPCConstants.NAMENODE_DARPC_RECVQUEUE, DaRPCConstants.NAMENODE_DARPC_SENDQUEUE); |
| LOG.info("rpc group started, recvQueue " + namenodeClientGroup.recvQueueSize()); |
| DaRPCClientEndpoint<DaRPCNameNodeRequest, DaRPCNameNodeResponse> namenodeEndopoint = namenodeClientGroup.createEndpoint(); |
| // LOG.info("connecting to namenode at " + address); |
| URI uri = URI.create("rdma://" + address.getAddress().getHostAddress() + ":" + address.getPort()); |
| namenodeEndopoint.connect(uri); |
| DaRPCNameNodeConnection connection = new DaRPCNameNodeConnection(namenodeEndopoint); |
| return connection; |
| |
| } |
| |
| @Override |
| public void close() { |
| try { |
| if (namenodeClientGroup != null){ |
| namenodeClientGroup.close(); |
| namenodeClientGroup = null; |
| } |
| } catch(Exception e){ |
| e.printStackTrace(); |
| LOG.info("Error while closing " + e.getMessage()); |
| } |
| } |
| |
| } |