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Java NamenodeProtocol类代码示例

本文整理汇总了Java中org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol类的典型用法代码示例。如果您正苦于以下问题：Java NamenodeProtocol类的具体用法？Java NamenodeProtocol怎么用？Java NamenodeProtocol使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。


NamenodeProtocol类属于org.apache.hadoop.hdfs.server.protocol包，在下文中一共展示了NamenodeProtocol类的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: createNNProxyWithNamenodeProtocol

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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);
  }
}
开发者ID:naver，项目名称:hadoop，代码行数:21，代码来源:NameNodeProxies.java

示例2: handshake

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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;
}
开发者ID:naver，项目名称:hadoop，代码行数:27，代码来源:BackupNode.java

示例3: getProtocolVersion

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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);
  }
}
开发者ID:naver，项目名称:hadoop，代码行数:23，代码来源:NameNode.java

示例4: testNamenodeProtocol

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
@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);
}
开发者ID:naver，项目名称:hadoop，代码行数:18，代码来源:TestIsMethodSupported.java

示例5: createNNProxyWithNamenodeProtocol

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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);
  }
}
开发者ID:aliyun-beta，项目名称:aliyun-oss-hadoop-fs，代码行数:21，代码来源:NameNodeProxies.java

示例6: getActiveNodeProxy

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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;
}
开发者ID:aliyun-beta，项目名称:aliyun-oss-hadoop-fs，代码行数:25，代码来源:EditLogTailer.java

示例7: handshake

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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;
}
开发者ID:ict-carch，项目名称:hadoop-plus，代码行数:26，代码来源:BackupNode.java

示例8: getProtocolVersion

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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);
  }
}
开发者ID:ict-carch，项目名称:hadoop-plus，代码行数:19，代码来源:NameNode.java

示例9: getProtocolVersion

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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);
  }
}
开发者ID:hopshadoop，项目名称:hops，代码行数:20，代码来源:NameNode.java

示例10: getProtocolVersion

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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);
  }
}
开发者ID:Seagate，项目名称:hadoop-on-lustre，代码行数:17，代码来源:NameNode.java

示例11: createNamenode

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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);
}
开发者ID:Seagate，项目名称:hadoop-on-lustre，代码行数:27，代码来源:Balancer.java

示例12: handshake

import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol; //导入依赖的package包/类
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;
}
开发者ID:cumulusyebl，项目名称:cumulus，代码行数:24，代码来源:BackupNode.java


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