Examples of org.apache.hadoop.hbase.ipc.RpcClient$Connection

org.apache.hadoop.hbase.ipc.RpcClient
Thread that reads responses and notifies callers. Each connection owns a socket connected to a remote address. Calls are multiplexed through this socket: responses may be delivered out of order.

      this.batchPool = pool;
      this.managed = managed;
      this.registry = setupRegistry();
      retrieveClusterId();


      this.rpcClient = new RpcClient(this.conf, this.clusterId);


      // Do we publish the status?
      boolean shouldListen = conf.getBoolean(HConstants.STATUS_PUBLISHED,
          HConstants.STATUS_PUBLISHED_DEFAULT);
      Class<? extends ClusterStatusListener.Listener> listenerClass =

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     * For tests only.
     * @param rpcClient Client we should use instead.
     * @return Previous rpcClient
     */
    RpcClient setRpcClient(final RpcClient rpcClient) {
      RpcClient oldRpcClient = this.rpcClient;
      this.rpcClient = rpcClient;
      return oldRpcClient;
    }

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      // Create the chore that cleans up nonces.
      nonceManagerChore = this.nonceManager.createCleanupChore(this);
    }


    // Setup RPC client for master communication
    rpcClient = new RpcClient(conf, clusterId, new InetSocketAddress(
        this.isa.getAddress(), 0));
    this.pauseMonitor = new JvmPauseMonitor(conf);
    pauseMonitor.start();
  }

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    });


    ServerName sn = table.getRegionLocation(ROW).getServerName();
    ConnectionManager.HConnectionImplementation conn =
        (ConnectionManager.HConnectionImplementation) table.getConnection();
    RpcClient rpcClient = conn.getRpcClient();


    LOG.info("Going to cancel connections. connection=" + conn.toString() + ", sn=" + sn);
    for (int i = 0; i < 5000; i++) {
      rpcClient.cancelConnections(sn.getHostname(), sn.getPort());
      Thread.sleep(5);
    }


    step.compareAndSet(1, 2);
    // The test may fail here if the thread doing the gets is stuck. The way to find

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     * @param rpcClient Client we should use instead.
     * @return Previous rpcClient
     */
    @VisibleForTesting
    RpcClient setRpcClient(final RpcClient rpcClient) {
      RpcClient oldRpcClient = this.rpcClient;
      this.rpcClient = rpcClient;
      return oldRpcClient;
    }

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      this.batchPool = pool;
      this.managed = managed;
      this.registry = setupRegistry();
      retrieveClusterId();


      this.rpcClient = new RpcClient(this.conf, this.clusterId);
      this.rpcControllerFactory = RpcControllerFactory.instantiate(conf);


      // Do we publish the status?
      boolean shouldListen = conf.getBoolean(HConstants.STATUS_PUBLISHED,
          HConstants.STATUS_PUBLISHED_DEFAULT);

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  @Test
  public void testAdminTimeout() throws Exception {
    Connection lastConnection = null;
    boolean lastFailed = false;
    int initialInvocations = RandomTimeoutBlockingRpcChannel.invokations.get();
    RpcClient rpcClient = newRandomTimeoutRpcClient();
    try {
      for (int i = 0; i < 5 || (lastFailed && i < 100); ++i) {
        lastFailed = false;
        // Ensure the HBaseAdmin uses a new connection by changing Configuration.
        Configuration conf = HBaseConfiguration.create(TEST_UTIL.getConfiguration());
        conf.set(HConstants.HBASE_CLIENT_INSTANCE_ID, String.valueOf(-1));
        HBaseAdmin admin = null;
        try {
          admin = new HBaseAdmin(conf);
          Connection connection = admin.getConnection();
          assertFalse(connection == lastConnection);
          lastConnection = connection;
          // Override the connection's rpc client for timeout testing
          RpcClient oldRpcClient =
            ((ConnectionManager.HConnectionImplementation)connection).setRpcClient(
              rpcClient);
          if (oldRpcClient != null) {
            oldRpcClient.stop();
          }
          // run some admin commands
          HBaseAdmin.checkHBaseAvailable(conf);
          admin.setBalancerRunning(false, false);
        } catch (MasterNotRunningException ex) {

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      rpcClient.stop();
    }
  }


  private static RpcClient newRandomTimeoutRpcClient() {
    return new RpcClient(
        TEST_UTIL.getConfiguration(), TEST_UTIL.getClusterKey()) {
      // Return my own instance, one that does random timeouts
      @Override
      public BlockingRpcChannel createBlockingRpcChannel(ServerName sn,
          User ticket, int rpcTimeout) {

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    // verify the server authenticates us as this token user
    testuser.doAs(new PrivilegedExceptionAction<Object>() {
      public Object run() throws Exception {
        Configuration c = server.getConfiguration();
        RpcClient rpcClient = new RpcClient(c, clusterId.toString());
        ServerName sn =
            ServerName.valueOf(server.getAddress().getHostName(), server.getAddress().getPort(),
                System.currentTimeMillis());
        try {
          BlockingRpcChannel channel = rpcClient.createBlockingRpcChannel(sn,
            User.getCurrent(), HConstants.DEFAULT_HBASE_RPC_TIMEOUT);
          AuthenticationProtos.AuthenticationService.BlockingInterface stub =
            AuthenticationProtos.AuthenticationService.newBlockingStub(channel);
          AuthenticationProtos.WhoAmIResponse response =
            stub.whoAmI(null, AuthenticationProtos.WhoAmIRequest.getDefaultInstance());
          String myname = response.getUsername();
          assertEquals("testuser", myname);
          String authMethod = response.getAuthMethod();
          assertEquals("TOKEN", authMethod);
        } finally {
          rpcClient.stop();
        }
        return null;
      }
    });
  }

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    // verify the server authenticates us as this token user
    testuser.doAs(new PrivilegedExceptionAction<Object>() {
      public Object run() throws Exception {
        Configuration c = server.getConfiguration();
        RpcClient rpcClient = new RpcClient(c, clusterId.toString());
        ServerName sn =
            ServerName.valueOf(server.getAddress().getHostName(), server.getAddress().getPort(),
                System.currentTimeMillis());
        try {
          BlockingRpcChannel channel = rpcClient.createBlockingRpcChannel(sn,
            User.getCurrent(), HConstants.DEFAULT_HBASE_RPC_TIMEOUT);
          AuthenticationProtos.AuthenticationService.BlockingInterface stub =
            AuthenticationProtos.AuthenticationService.newBlockingStub(channel);
          AuthenticationProtos.WhoAmIResponse response =
            stub.whoAmI(null, AuthenticationProtos.WhoAmIRequest.getDefaultInstance());
          String myname = response.getUsername();
          assertEquals("testuser", myname);
          String authMethod = response.getAuthMethod();
          assertEquals("TOKEN", authMethod);
        } finally {
          rpcClient.stop();
        }
        return null;
      }
    });
  }

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