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  3. org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol

Java 类org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol 实例源码

项目：hadoop    文件：NameNodeProxies.java    
private static NamenodeProtocol createNNProxyWithNamenodeProtocol(
    InetSocketAddress address, Configuration conf, UserGroupInformation ugi,
    boolean withRetries) throws IOException {
  NamenodeProtocolPB proxy = (NamenodeProtocolPB) createNameNodeProxy(
      address, conf, ugi, NamenodeProtocolPB.class);
  if (withRetries) { // create the proxy with retries
    RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(5, 200,
            TimeUnit.MILLISECONDS);
    Map<String, RetryPolicy> methodNameToPolicyMap
         = new HashMap<String, RetryPolicy>();
    methodNameToPolicyMap.put("getBlocks", timeoutPolicy);
    methodNameToPolicyMap.put("getAccessKeys", timeoutPolicy);
    NamenodeProtocol translatorProxy =
        new NamenodeProtocolTranslatorPB(proxy);
    return (NamenodeProtocol) RetryProxy.create(
        NamenodeProtocol.class, translatorProxy, methodNameToPolicyMap);
  } else {
    return new NamenodeProtocolTranslatorPB(proxy);
  }
}
项目：hadoop    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode = NameNodeProxies.createNonHAProxy(conf, nnAddress,
      NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
      true).getProxy();
  this.nnRpcAddress = NetUtils.getHostPortString(nnAddress);
  this.nnHttpAddress = DFSUtil.getInfoServer(nnAddress, conf,
      DFSUtil.getHttpClientScheme(conf)).toURL();
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {
        LOG.warn("Encountered exception ", e);
      }
    }
  }
  return nsInfo;
}
项目：hadoop    文件：BackupNode.java    
private static NamespaceInfo handshake(NamenodeProtocol namenode)
throws IOException, SocketTimeoutException {
  NamespaceInfo nsInfo;
  nsInfo = namenode.versionRequest();  // throws SocketTimeoutException 
  String errorMsg = null;
  // verify build version
  if( ! nsInfo.getBuildVersion().equals( Storage.getBuildVersion())) {
    errorMsg = "Incompatible build versions: active name-node BV = " 
      + nsInfo.getBuildVersion() + "; backup node BV = "
      + Storage.getBuildVersion();
    LOG.error(errorMsg);
    throw new IOException(errorMsg);
  }
  assert HdfsConstants.NAMENODE_LAYOUT_VERSION == nsInfo.getLayoutVersion() :
    "Active and backup node layout versions must be the same. Expected: "
    + HdfsConstants.NAMENODE_LAYOUT_VERSION + " actual "+ nsInfo.getLayoutVersion();
  return nsInfo;
}
项目：hadoop    文件：NameNode.java    
public long getProtocolVersion(String protocol, 
                               long clientVersion) throws IOException {
  if (protocol.equals(ClientProtocol.class.getName())) {
    return ClientProtocol.versionID; 
  } else if (protocol.equals(DatanodeProtocol.class.getName())){
    return DatanodeProtocol.versionID;
  } else if (protocol.equals(NamenodeProtocol.class.getName())){
    return NamenodeProtocol.versionID;
  } else if (protocol.equals(RefreshAuthorizationPolicyProtocol.class.getName())){
    return RefreshAuthorizationPolicyProtocol.versionID;
  } else if (protocol.equals(RefreshUserMappingsProtocol.class.getName())){
    return RefreshUserMappingsProtocol.versionID;
  } else if (protocol.equals(RefreshCallQueueProtocol.class.getName())) {
    return RefreshCallQueueProtocol.versionID;
  } else if (protocol.equals(GetUserMappingsProtocol.class.getName())){
    return GetUserMappingsProtocol.versionID;
  } else if (protocol.equals(TraceAdminProtocol.class.getName())){
    return TraceAdminProtocol.versionID;
  } else {
    throw new IOException("Unknown protocol to name node: " + protocol);
  }
}
项目：hadoop    文件：TestIsMethodSupported.java    
@Test
public void testNamenodeProtocol() throws IOException {
  NamenodeProtocol np =
      NameNodeProxies.createNonHAProxy(conf,
          nnAddress, NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
          true).getProxy();

  boolean exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "rollEditLog");

  assertTrue(exists);
  exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "bogusMethod");
  assertFalse(exists);
}
项目：aliyun-oss-hadoop-fs    文件：NameNodeProxies.java    
private static NamenodeProtocol createNNProxyWithNamenodeProtocol(
    InetSocketAddress address, Configuration conf, UserGroupInformation ugi,
    boolean withRetries) throws IOException {
  NamenodeProtocolPB proxy = (NamenodeProtocolPB) createNameNodeProxy(
      address, conf, ugi, NamenodeProtocolPB.class, 0);
  if (withRetries) { // create the proxy with retries
    RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(5, 200,
            TimeUnit.MILLISECONDS);
    Map<String, RetryPolicy> methodNameToPolicyMap
         = new HashMap<String, RetryPolicy>();
    methodNameToPolicyMap.put("getBlocks", timeoutPolicy);
    methodNameToPolicyMap.put("getAccessKeys", timeoutPolicy);
    NamenodeProtocol translatorProxy =
        new NamenodeProtocolTranslatorPB(proxy);
    return (NamenodeProtocol) RetryProxy.create(
        NamenodeProtocol.class, translatorProxy, methodNameToPolicyMap);
  } else {
    return new NamenodeProtocolTranslatorPB(proxy);
  }
}
项目：aliyun-oss-hadoop-fs    文件：EditLogTailer.java    
private NamenodeProtocol getActiveNodeProxy() throws IOException {
  if (cachedActiveProxy == null) {
    while (true) {
      // if we have reached the max loop count, quit by returning null
      if ((nnLoopCount / nnCount) >= maxRetries) {
        return null;
      }

      currentNN = nnLookup.next();
      try {
        NamenodeProtocolPB proxy = RPC.waitForProxy(NamenodeProtocolPB.class,
            RPC.getProtocolVersion(NamenodeProtocolPB.class), currentNN.getIpcAddress(), conf);
        cachedActiveProxy = new NamenodeProtocolTranslatorPB(proxy);
        break;
      } catch (IOException e) {
        LOG.info("Failed to reach " + currentNN, e);
        // couldn't even reach this NN, try the next one
        nnLoopCount++;
      }
    }
  }
  assert cachedActiveProxy != null;
  return cachedActiveProxy;
}
项目：aliyun-oss-hadoop-fs    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode = NameNodeProxies.createNonHAProxy(conf, nnAddress,
      NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
      true).getProxy();
  this.nnRpcAddress = NetUtils.getHostPortString(nnAddress);
  this.nnHttpAddress = DFSUtil.getInfoServer(nnAddress, conf,
      DFSUtil.getHttpClientScheme(conf)).toURL();
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {
        LOG.warn("Encountered exception ", e);
      }
    }
  }
  return nsInfo;
}
项目：aliyun-oss-hadoop-fs    文件：BackupNode.java    
private static NamespaceInfo handshake(NamenodeProtocol namenode)
throws IOException, SocketTimeoutException {
  NamespaceInfo nsInfo;
  nsInfo = namenode.versionRequest();  // throws SocketTimeoutException 
  String errorMsg = null;
  // verify build version
  if( ! nsInfo.getBuildVersion().equals( Storage.getBuildVersion())) {
    errorMsg = "Incompatible build versions: active name-node BV = " 
      + nsInfo.getBuildVersion() + "; backup node BV = "
      + Storage.getBuildVersion();
    LOG.error(errorMsg);
    throw new IOException(errorMsg);
  }
  assert HdfsServerConstants.NAMENODE_LAYOUT_VERSION == nsInfo.getLayoutVersion() :
    "Active and backup node layout versions must be the same. Expected: "
    + HdfsServerConstants.NAMENODE_LAYOUT_VERSION + " actual "+ nsInfo.getLayoutVersion();
  return nsInfo;
}
项目：aliyun-oss-hadoop-fs    文件：NameNode.java    
public long getProtocolVersion(String protocol, 
                               long clientVersion) throws IOException {
  if (protocol.equals(ClientProtocol.class.getName())) {
    return ClientProtocol.versionID; 
  } else if (protocol.equals(DatanodeProtocol.class.getName())){
    return DatanodeProtocol.versionID;
  } else if (protocol.equals(NamenodeProtocol.class.getName())){
    return NamenodeProtocol.versionID;
  } else if (protocol.equals(RefreshAuthorizationPolicyProtocol.class.getName())){
    return RefreshAuthorizationPolicyProtocol.versionID;
  } else if (protocol.equals(RefreshUserMappingsProtocol.class.getName())){
    return RefreshUserMappingsProtocol.versionID;
  } else if (protocol.equals(RefreshCallQueueProtocol.class.getName())) {
    return RefreshCallQueueProtocol.versionID;
  } else if (protocol.equals(GetUserMappingsProtocol.class.getName())){
    return GetUserMappingsProtocol.versionID;
  } else if (protocol.equals(TraceAdminProtocol.class.getName())){
    return TraceAdminProtocol.versionID;
  } else {
    throw new IOException("Unknown protocol to name node: " + protocol);
  }
}
项目：aliyun-oss-hadoop-fs    文件：TestIsMethodSupported.java    
@Test
public void testNamenodeProtocol() throws IOException {
  NamenodeProtocol np =
      NameNodeProxies.createNonHAProxy(conf,
          nnAddress, NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
          true).getProxy();

  boolean exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "rollEditLog");

  assertTrue(exists);
  exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "bogusMethod");
  assertFalse(exists);
}
项目：big-c    文件：NameNodeProxies.java    
private static NamenodeProtocol createNNProxyWithNamenodeProtocol(
    InetSocketAddress address, Configuration conf, UserGroupInformation ugi,
    boolean withRetries) throws IOException {
  NamenodeProtocolPB proxy = (NamenodeProtocolPB) createNameNodeProxy(
      address, conf, ugi, NamenodeProtocolPB.class);
  if (withRetries) { // create the proxy with retries
    RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(5, 200,
            TimeUnit.MILLISECONDS);
    Map<String, RetryPolicy> methodNameToPolicyMap
         = new HashMap<String, RetryPolicy>();
    methodNameToPolicyMap.put("getBlocks", timeoutPolicy);
    methodNameToPolicyMap.put("getAccessKeys", timeoutPolicy);
    NamenodeProtocol translatorProxy =
        new NamenodeProtocolTranslatorPB(proxy);
    return (NamenodeProtocol) RetryProxy.create(
        NamenodeProtocol.class, translatorProxy, methodNameToPolicyMap);
  } else {
    return new NamenodeProtocolTranslatorPB(proxy);
  }
}
项目：big-c    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode = NameNodeProxies.createNonHAProxy(conf, nnAddress,
      NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
      true).getProxy();
  this.nnRpcAddress = NetUtils.getHostPortString(nnAddress);
  this.nnHttpAddress = DFSUtil.getInfoServer(nnAddress, conf,
      DFSUtil.getHttpClientScheme(conf)).toURL();
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {
        LOG.warn("Encountered exception ", e);
      }
    }
  }
  return nsInfo;
}
项目：big-c    文件：BackupNode.java    
private static NamespaceInfo handshake(NamenodeProtocol namenode)
throws IOException, SocketTimeoutException {
  NamespaceInfo nsInfo;
  nsInfo = namenode.versionRequest();  // throws SocketTimeoutException 
  String errorMsg = null;
  // verify build version
  if( ! nsInfo.getBuildVersion().equals( Storage.getBuildVersion())) {
    errorMsg = "Incompatible build versions: active name-node BV = " 
      + nsInfo.getBuildVersion() + "; backup node BV = "
      + Storage.getBuildVersion();
    LOG.error(errorMsg);
    throw new IOException(errorMsg);
  }
  assert HdfsConstants.NAMENODE_LAYOUT_VERSION == nsInfo.getLayoutVersion() :
    "Active and backup node layout versions must be the same. Expected: "
    + HdfsConstants.NAMENODE_LAYOUT_VERSION + " actual "+ nsInfo.getLayoutVersion();
  return nsInfo;
}
项目：big-c    文件：NameNode.java    
public long getProtocolVersion(String protocol, 
                               long clientVersion) throws IOException {
  if (protocol.equals(ClientProtocol.class.getName())) {
    return ClientProtocol.versionID; 
  } else if (protocol.equals(DatanodeProtocol.class.getName())){
    return DatanodeProtocol.versionID;
  } else if (protocol.equals(NamenodeProtocol.class.getName())){
    return NamenodeProtocol.versionID;
  } else if (protocol.equals(RefreshAuthorizationPolicyProtocol.class.getName())){
    return RefreshAuthorizationPolicyProtocol.versionID;
  } else if (protocol.equals(RefreshUserMappingsProtocol.class.getName())){
    return RefreshUserMappingsProtocol.versionID;
  } else if (protocol.equals(RefreshCallQueueProtocol.class.getName())) {
    return RefreshCallQueueProtocol.versionID;
  } else if (protocol.equals(GetUserMappingsProtocol.class.getName())){
    return GetUserMappingsProtocol.versionID;
  } else if (protocol.equals(TraceAdminProtocol.class.getName())){
    return TraceAdminProtocol.versionID;
  } else {
    throw new IOException("Unknown protocol to name node: " + protocol);
  }
}
项目：big-c    文件：TestIsMethodSupported.java    
@Test
public void testNamenodeProtocol() throws IOException {
  NamenodeProtocol np =
      NameNodeProxies.createNonHAProxy(conf,
          nnAddress, NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
          true).getProxy();

  boolean exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "rollEditLog");

  assertTrue(exists);
  exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "bogusMethod");
  assertFalse(exists);
}
项目：hadoop-2.6.0-cdh5.4.3    文件：NameNodeProxies.java    
private static NamenodeProtocol createNNProxyWithNamenodeProtocol(
    InetSocketAddress address, Configuration conf, UserGroupInformation ugi,
    boolean withRetries) throws IOException {
  NamenodeProtocolPB proxy = (NamenodeProtocolPB) createNameNodeProxy(
      address, conf, ugi, NamenodeProtocolPB.class);
  if (withRetries) { // create the proxy with retries
    RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(5, 200,
            TimeUnit.MILLISECONDS);
    Map<String, RetryPolicy> methodNameToPolicyMap
         = new HashMap<String, RetryPolicy>();
    methodNameToPolicyMap.put("getBlocks", timeoutPolicy);
    methodNameToPolicyMap.put("getAccessKeys", timeoutPolicy);
    NamenodeProtocol translatorProxy =
        new NamenodeProtocolTranslatorPB(proxy);
    return (NamenodeProtocol) RetryProxy.create(
        NamenodeProtocol.class, translatorProxy, methodNameToPolicyMap);
  } else {
    return new NamenodeProtocolTranslatorPB(proxy);
  }
}
项目：hadoop-2.6.0-cdh5.4.3    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode = NameNodeProxies.createNonHAProxy(conf, nnAddress,
      NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
      true).getProxy();
  this.nnRpcAddress = NetUtils.getHostPortString(nnAddress);
  this.nnHttpAddress = DFSUtil.getInfoServer(nnAddress, conf,
      DFSUtil.getHttpClientScheme(conf)).toURL();
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {
        LOG.warn("Encountered exception ", e);
      }
    }
  }
  return nsInfo;
}
项目：hadoop-2.6.0-cdh5.4.3    文件：BackupNode.java    
private static NamespaceInfo handshake(NamenodeProtocol namenode)
throws IOException, SocketTimeoutException {
  NamespaceInfo nsInfo;
  nsInfo = namenode.versionRequest();  // throws SocketTimeoutException 
  String errorMsg = null;
  // verify build version
  if( ! nsInfo.getBuildVersion().equals( Storage.getBuildVersion())) {
    errorMsg = "Incompatible build versions: active name-node BV = " 
      + nsInfo.getBuildVersion() + "; backup node BV = "
      + Storage.getBuildVersion();
    LOG.error(errorMsg);
    throw new IOException(errorMsg);
  }
  assert HdfsConstants.NAMENODE_LAYOUT_VERSION == nsInfo.getLayoutVersion() :
    "Active and backup node layout versions must be the same. Expected: "
    + HdfsConstants.NAMENODE_LAYOUT_VERSION + " actual "+ nsInfo.getLayoutVersion();
  return nsInfo;
}
项目：hadoop-2.6.0-cdh5.4.3    文件：NameNode.java    
public long getProtocolVersion(String protocol, 
                               long clientVersion) throws IOException {
  if (protocol.equals(ClientProtocol.class.getName())) {
    return ClientProtocol.versionID; 
  } else if (protocol.equals(DatanodeProtocol.class.getName())){
    return DatanodeProtocol.versionID;
  } else if (protocol.equals(NamenodeProtocol.class.getName())){
    return NamenodeProtocol.versionID;
  } else if (protocol.equals(RefreshAuthorizationPolicyProtocol.class.getName())){
    return RefreshAuthorizationPolicyProtocol.versionID;
  } else if (protocol.equals(RefreshUserMappingsProtocol.class.getName())){
    return RefreshUserMappingsProtocol.versionID;
  } else if (protocol.equals(RefreshCallQueueProtocol.class.getName())) {
    return RefreshCallQueueProtocol.versionID;
  } else if (protocol.equals(GetUserMappingsProtocol.class.getName())){
    return GetUserMappingsProtocol.versionID;
  } else if (protocol.equals(TraceAdminProtocol.class.getName())){
    return TraceAdminProtocol.versionID;
  } else {
    throw new IOException("Unknown protocol to name node: " + protocol);
  }
}
项目：hadoop-2.6.0-cdh5.4.3    文件：TestIsMethodSupported.java    
@Test
public void testNamenodeProtocol() throws IOException {
  NamenodeProtocol np =
      NameNodeProxies.createNonHAProxy(conf,
          nnAddress, NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
          true).getProxy();

  boolean exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "rollEditLog");

  assertTrue(exists);
  exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "bogusMethod");
  assertFalse(exists);
}
项目：hadoop-plus    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode = NameNodeProxies.createNonHAProxy(conf, nnAddress,
      NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
      true).getProxy();
  this.nnRpcAddress = NetUtils.getHostPortString(nnAddress);
  this.nnHttpAddress = NetUtils.getHostPortString(super.getHttpServerAddress(conf));
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {
        LOG.warn("Encountered exception ", e);
      }
    }
  }
  return nsInfo;
}
项目：hadoop-plus    文件：BackupNode.java    
private static NamespaceInfo handshake(NamenodeProtocol namenode)
throws IOException, SocketTimeoutException {
  NamespaceInfo nsInfo;
  nsInfo = namenode.versionRequest();  // throws SocketTimeoutException 
  String errorMsg = null;
  // verify build version
  if( ! nsInfo.getBuildVersion().equals( Storage.getBuildVersion())) {
    errorMsg = "Incompatible build versions: active name-node BV = " 
      + nsInfo.getBuildVersion() + "; backup node BV = "
      + Storage.getBuildVersion();
    LOG.fatal(errorMsg);
    throw new IOException(errorMsg);
  }
  assert HdfsConstants.LAYOUT_VERSION == nsInfo.getLayoutVersion() :
    "Active and backup node layout versions must be the same. Expected: "
    + HdfsConstants.LAYOUT_VERSION + " actual "+ nsInfo.getLayoutVersion();
  return nsInfo;
}
项目：hadoop-plus    文件：NameNode.java    
public long getProtocolVersion(String protocol, 
                               long clientVersion) throws IOException {
  if (protocol.equals(ClientProtocol.class.getName())) {
    return ClientProtocol.versionID; 
  } else if (protocol.equals(DatanodeProtocol.class.getName())){
    return DatanodeProtocol.versionID;
  } else if (protocol.equals(NamenodeProtocol.class.getName())){
    return NamenodeProtocol.versionID;
  } else if (protocol.equals(RefreshAuthorizationPolicyProtocol.class.getName())){
    return RefreshAuthorizationPolicyProtocol.versionID;
  } else if (protocol.equals(RefreshUserMappingsProtocol.class.getName())){
    return RefreshUserMappingsProtocol.versionID;
  } else if (protocol.equals(GetUserMappingsProtocol.class.getName())){
    return GetUserMappingsProtocol.versionID;
  } else {
    throw new IOException("Unknown protocol to name node: " + protocol);
  }
}
项目：FlexMap    文件：NameNodeProxies.java    
private static NamenodeProtocol createNNProxyWithNamenodeProtocol(
    InetSocketAddress address, Configuration conf, UserGroupInformation ugi,
    boolean withRetries) throws IOException {
  NamenodeProtocolPB proxy = (NamenodeProtocolPB) createNameNodeProxy(
      address, conf, ugi, NamenodeProtocolPB.class);
  if (withRetries) { // create the proxy with retries
    RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(5, 200,
            TimeUnit.MILLISECONDS);
    Map<String, RetryPolicy> methodNameToPolicyMap
         = new HashMap<String, RetryPolicy>();
    methodNameToPolicyMap.put("getBlocks", timeoutPolicy);
    methodNameToPolicyMap.put("getAccessKeys", timeoutPolicy);
    NamenodeProtocol translatorProxy =
        new NamenodeProtocolTranslatorPB(proxy);
    return (NamenodeProtocol) RetryProxy.create(
        NamenodeProtocol.class, translatorProxy, methodNameToPolicyMap);
  } else {
    return new NamenodeProtocolTranslatorPB(proxy);
  }
}
项目：FlexMap    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode = NameNodeProxies.createNonHAProxy(conf, nnAddress,
      NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
      true).getProxy();
  this.nnRpcAddress = NetUtils.getHostPortString(nnAddress);
  this.nnHttpAddress = DFSUtil.getInfoServer(nnAddress, conf,
      DFSUtil.getHttpClientScheme(conf)).toURL();
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {
        LOG.warn("Encountered exception ", e);
      }
    }
  }
  return nsInfo;
}
项目：FlexMap    文件：BackupNode.java    
private static NamespaceInfo handshake(NamenodeProtocol namenode)
throws IOException, SocketTimeoutException {
  NamespaceInfo nsInfo;
  nsInfo = namenode.versionRequest();  // throws SocketTimeoutException 
  String errorMsg = null;
  // verify build version
  if( ! nsInfo.getBuildVersion().equals( Storage.getBuildVersion())) {
    errorMsg = "Incompatible build versions: active name-node BV = " 
      + nsInfo.getBuildVersion() + "; backup node BV = "
      + Storage.getBuildVersion();
    LOG.fatal(errorMsg);
    throw new IOException(errorMsg);
  }
  assert HdfsConstants.NAMENODE_LAYOUT_VERSION == nsInfo.getLayoutVersion() :
    "Active and backup node layout versions must be the same. Expected: "
    + HdfsConstants.NAMENODE_LAYOUT_VERSION + " actual "+ nsInfo.getLayoutVersion();
  return nsInfo;
}
项目：FlexMap    文件：TestIsMethodSupported.java    
@Test
public void testNamenodeProtocol() throws IOException {
  NamenodeProtocol np =
      NameNodeProxies.createNonHAProxy(conf,
          nnAddress, NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
          true).getProxy();

  boolean exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "rollEditLog");

  assertTrue(exists);
  exists = RpcClientUtil.isMethodSupported(np,
      NamenodeProtocolPB.class, RPC.RpcKind.RPC_PROTOCOL_BUFFER,
      RPC.getProtocolVersion(NamenodeProtocolPB.class), "bogusMethod");
  assertFalse(exists);
}
项目：hops    文件：NameNode.java    
public long getProtocolVersion(String protocol, long clientVersion)
    throws IOException {
  if (protocol.equals(ClientProtocol.class.getName())) {
    return ClientProtocol.versionID;
  } else if (protocol.equals(DatanodeProtocol.class.getName())) {
    return DatanodeProtocol.versionID;
  } else if (protocol.equals(NamenodeProtocol.class.getName())) {
    return NamenodeProtocol.versionID;
  } else if (protocol
      .equals(RefreshAuthorizationPolicyProtocol.class.getName())) {
    return RefreshAuthorizationPolicyProtocol.versionID;
  } else if (protocol.equals(RefreshUserMappingsProtocol.class.getName())) {
    return RefreshUserMappingsProtocol.versionID;
  } else if (protocol.equals(GetUserMappingsProtocol.class.getName())) {
    return GetUserMappingsProtocol.versionID;
  } else {
    throw new IOException("Unknown protocol to name node: " + protocol);
  }
}
项目：hadoop-TCP    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode = NameNodeProxies.createNonHAProxy(conf, nnAddress,
      NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
      true).getProxy();
  this.nnRpcAddress = NetUtils.getHostPortString(nnAddress);
  this.nnHttpAddress = NetUtils.getHostPortString(super.getHttpServerAddress(conf));
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {
        LOG.warn("Encountered exception ", e);
      }
    }
  }
  return nsInfo;
}
项目：hadoop-TCP    文件：BackupNode.java    
private static NamespaceInfo handshake(NamenodeProtocol namenode)
throws IOException, SocketTimeoutException {
  NamespaceInfo nsInfo;
  nsInfo = namenode.versionRequest();  // throws SocketTimeoutException 
  String errorMsg = null;
  // verify build version
  if( ! nsInfo.getBuildVersion().equals( Storage.getBuildVersion())) {
    errorMsg = "Incompatible build versions: active name-node BV = " 
      + nsInfo.getBuildVersion() + "; backup node BV = "
      + Storage.getBuildVersion();
    LOG.fatal(errorMsg);
    throw new IOException(errorMsg);
  }
  assert HdfsConstants.LAYOUT_VERSION == nsInfo.getLayoutVersion() :
    "Active and backup node layout versions must be the same. Expected: "
    + HdfsConstants.LAYOUT_VERSION + " actual "+ nsInfo.getLayoutVersion();
  return nsInfo;
}
项目：hadoop-TCP    文件：NameNode.java    
public long getProtocolVersion(String protocol, 
                               long clientVersion) throws IOException {
  if (protocol.equals(ClientProtocol.class.getName())) {
    return ClientProtocol.versionID; 
  } else if (protocol.equals(DatanodeProtocol.class.getName())){
    return DatanodeProtocol.versionID;
  } else if (protocol.equals(NamenodeProtocol.class.getName())){
    return NamenodeProtocol.versionID;
  } else if (protocol.equals(RefreshAuthorizationPolicyProtocol.class.getName())){
    return RefreshAuthorizationPolicyProtocol.versionID;
  } else if (protocol.equals(RefreshUserMappingsProtocol.class.getName())){
    return RefreshUserMappingsProtocol.versionID;
  } else if (protocol.equals(GetUserMappingsProtocol.class.getName())){
    return GetUserMappingsProtocol.versionID;
  } else {
    throw new IOException("Unknown protocol to name node: " + protocol);
  }
}
项目：hadoop-on-lustre    文件：NameNode.java    
public long getProtocolVersion(String protocol, 
                               long clientVersion) throws IOException {
  if (protocol.equals(ClientProtocol.class.getName())) {
    return ClientProtocol.versionID; 
  } else if (protocol.equals(DatanodeProtocol.class.getName())){
    return DatanodeProtocol.versionID;
  } else if (protocol.equals(NamenodeProtocol.class.getName())){
    return NamenodeProtocol.versionID;
  } else if (protocol.equals(RefreshAuthorizationPolicyProtocol.class.getName())){
    return RefreshAuthorizationPolicyProtocol.versionID;
  } else if (protocol.equals(RefreshUserMappingsProtocol.class.getName())){
    return RefreshUserMappingsProtocol.versionID;
  } else {
    throw new IOException("Unknown protocol to name node: " + protocol);
  }
}
项目：hadoop-on-lustre    文件：Balancer.java    
private static NamenodeProtocol createNamenode(Configuration conf)
  throws IOException {
  InetSocketAddress nameNodeAddr = NameNode.getServiceAddress(conf, true);
  RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(
      5, 200, TimeUnit.MILLISECONDS);
  Map<Class<? extends Exception>,RetryPolicy> exceptionToPolicyMap =
    new HashMap<Class<? extends Exception>, RetryPolicy>();
  RetryPolicy methodPolicy = RetryPolicies.retryByException(
      timeoutPolicy, exceptionToPolicyMap);
  Map<String,RetryPolicy> methodNameToPolicyMap =
      new HashMap<String, RetryPolicy>();
  methodNameToPolicyMap.put("getBlocks", methodPolicy);
  methodNameToPolicyMap.put("getAccessKeys", methodPolicy);

  UserGroupInformation ugi = UserGroupInformation.getCurrentUser();

  return (NamenodeProtocol) RetryProxy.create(
      NamenodeProtocol.class,
      RPC.getProxy(NamenodeProtocol.class,
          NamenodeProtocol.versionID,
          nameNodeAddr,
          ugi,
          conf,
          NetUtils.getDefaultSocketFactory(conf)),
      methodNameToPolicyMap);
}
项目：hardfs    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode = NameNodeProxies.createNonHAProxy(conf, nnAddress,
      NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
      true).getProxy();
  this.nnRpcAddress = NetUtils.getHostPortString(nnAddress);
  this.nnHttpAddress = NetUtils.getHostPortString(super.getHttpServerAddress(conf));
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {
        LOG.warn("Encountered exception ", e);
      }
    }
  }
  return nsInfo;
}
项目：hardfs    文件：BackupNode.java    
private static NamespaceInfo handshake(NamenodeProtocol namenode)
throws IOException, SocketTimeoutException {
  NamespaceInfo nsInfo;
  nsInfo = namenode.versionRequest();  // throws SocketTimeoutException 
  String errorMsg = null;
  // verify build version
  if( ! nsInfo.getBuildVersion().equals( Storage.getBuildVersion())) {
    errorMsg = "Incompatible build versions: active name-node BV = " 
      + nsInfo.getBuildVersion() + "; backup node BV = "
      + Storage.getBuildVersion();
    LOG.fatal(errorMsg);
    throw new IOException(errorMsg);
  }
  assert HdfsConstants.LAYOUT_VERSION == nsInfo.getLayoutVersion() :
    "Active and backup node layout versions must be the same. Expected: "
    + HdfsConstants.LAYOUT_VERSION + " actual "+ nsInfo.getLayoutVersion();
  return nsInfo;
}
项目：hardfs    文件：NameNode.java    
public long getProtocolVersion(String protocol, 
                               long clientVersion) throws IOException {
  if (protocol.equals(ClientProtocol.class.getName())) {
    return ClientProtocol.versionID; 
  } else if (protocol.equals(DatanodeProtocol.class.getName())){
    return DatanodeProtocol.versionID;
  } else if (protocol.equals(NamenodeProtocol.class.getName())){
    return NamenodeProtocol.versionID;
  } else if (protocol.equals(RefreshAuthorizationPolicyProtocol.class.getName())){
    return RefreshAuthorizationPolicyProtocol.versionID;
  } else if (protocol.equals(RefreshUserMappingsProtocol.class.getName())){
    return RefreshUserMappingsProtocol.versionID;
  } else if (protocol.equals(GetUserMappingsProtocol.class.getName())){
    return GetUserMappingsProtocol.versionID;
  } else {
    throw new IOException("Unknown protocol to name node: " + protocol);
  }
}
项目：hadoop-on-lustre2    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode = NameNodeProxies.createNonHAProxy(conf, nnAddress,
      NamenodeProtocol.class, UserGroupInformation.getCurrentUser(),
      true).getProxy();
  this.nnRpcAddress = NetUtils.getHostPortString(nnAddress);
  this.nnHttpAddress = DFSUtil.getInfoServer(nnAddress, conf,
      DFSUtil.getHttpClientScheme(conf)).toURL();
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {
        LOG.warn("Encountered exception ", e);
      }
    }
  }
  return nsInfo;
}
项目：hadoop-on-lustre2    文件：BackupNode.java    
private static NamespaceInfo handshake(NamenodeProtocol namenode)
throws IOException, SocketTimeoutException {
  NamespaceInfo nsInfo;
  nsInfo = namenode.versionRequest();  // throws SocketTimeoutException 
  String errorMsg = null;
  // verify build version
  if( ! nsInfo.getBuildVersion().equals( Storage.getBuildVersion())) {
    errorMsg = "Incompatible build versions: active name-node BV = " 
      + nsInfo.getBuildVersion() + "; backup node BV = "
      + Storage.getBuildVersion();
    LOG.fatal(errorMsg);
    throw new IOException(errorMsg);
  }
  assert HdfsConstants.NAMENODE_LAYOUT_VERSION == nsInfo.getLayoutVersion() :
    "Active and backup node layout versions must be the same. Expected: "
    + HdfsConstants.NAMENODE_LAYOUT_VERSION + " actual "+ nsInfo.getLayoutVersion();
  return nsInfo;
}
项目：cumulus    文件：BackupNode.java    
private NamespaceInfo handshake(Configuration conf) throws IOException {
  // connect to name node
  InetSocketAddress nnAddress = NameNode.getServiceAddress(conf, true);
  this.namenode =
    (NamenodeProtocol) RPC.waitForProxy(NamenodeProtocol.class,
        NamenodeProtocol.versionID, nnAddress, conf);
  this.nnRpcAddress = getHostPortString(nnAddress);
  this.nnHttpAddress = getHostPortString(super.getHttpServerAddress(conf));
  // get version and id info from the name-node
  NamespaceInfo nsInfo = null;
  while(!isStopRequested()) {
    try {
      nsInfo = handshake(namenode);
      break;
    } catch(SocketTimeoutException e) {  // name-node is busy
      LOG.info("Problem connecting to server: " + nnAddress);
      try {
        Thread.sleep(1000);
      } catch (InterruptedException ie) {}
    }
  }
  return nsInfo;
}