Examples of org.apache.zookeeper.server.NIOServerCnxnFactory$AbstractSelectThread

org.apache.zookeeper.server.NIOServerCnxnFactory
AbstractSelectThread is an abstract base class containing a few bits of code shared by the AcceptThread (which selects on the listen socket) and SelectorThread (which selects on client connections) classes.

        tickTimeToUse = this.tickTime;
      } else {
        tickTimeToUse = TICK_TIME;
      }
      ZooKeeperServer server = new ZooKeeperServer(dir, dir, tickTimeToUse);    
      NIOServerCnxnFactory standaloneServerFactory;
      while (true) {
        try {
          standaloneServerFactory = new NIOServerCnxnFactory();
          standaloneServerFactory.configure(
            new InetSocketAddress(clientPort),
            configuration.getInt(HConstants.ZOOKEEPER_MAX_CLIENT_CNXNS,
              1000));
        } catch (BindException e) {
          LOG.info("Failed binding ZK Server to client port: " + clientPort);
          //this port is already in use. try to use another
          clientPort++;
          continue;
        }
        break;
      }
      
      // Start up this ZK server
      standaloneServerFactory.startup(server);  
      if (!waitForServerUp(clientPort, CONNECTION_TIMEOUT)) {
        throw new IOException("Waiting for startup of standalone server");
      }
      
      clientPortList.add(clientPort);

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    if (!started) {
      return;
    }
    // shut down all the zk servers
    for (int i = 0; i < standaloneServerFactoryList.size(); i++) {
      NIOServerCnxnFactory standaloneServerFactory =
        standaloneServerFactoryList.get(i);      
      int clientPort = clientPortList.get(i);
      
      standaloneServerFactory.shutdown();
      if (!waitForServerDown(clientPort, CONNECTION_TIMEOUT)) {
        throw new IOException("Waiting for shutdown of standalone server");
      }
    }

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    if (!started || activeZKServerIndex < 0 ) {
      return -1;
    }
    
    // Shutdown the current active one
    NIOServerCnxnFactory standaloneServerFactory =
      standaloneServerFactoryList.get(activeZKServerIndex);
    int clientPort = clientPortList.get(activeZKServerIndex);
    
    standaloneServerFactory.shutdown();
    if (!waitForServerDown(clientPort, CONNECTION_TIMEOUT)) {
      throw new IOException("Waiting for shutdown of standalone server");
    }
    
    // remove the current active zk server

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      return ;
    }
    
    int backupZKServerIndex = activeZKServerIndex+1;
    // Shutdown the current active one
    NIOServerCnxnFactory standaloneServerFactory =
      standaloneServerFactoryList.get(backupZKServerIndex);
    int clientPort = clientPortList.get(backupZKServerIndex);
    
    standaloneServerFactory.shutdown();
    if (!waitForServerDown(clientPort, CONNECTION_TIMEOUT)) {
      throw new IOException("Waiting for shutdown of standalone server");
    }
    
    // remove this backup zk server

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        tickTimeToUse = this.tickTime;
      } else {
        tickTimeToUse = TICK_TIME;
      }
      ZooKeeperServer server = new ZooKeeperServer(dir, dir, tickTimeToUse);
      NIOServerCnxnFactory standaloneServerFactory;
      while (true) {
        try {
          standaloneServerFactory = new NIOServerCnxnFactory();
          standaloneServerFactory.configure(
            new InetSocketAddress(tentativePort), 1000);
        } catch (BindException e) {
          LOG.debug("Failed binding ZK Server to client port: " +
            tentativePort);
          // This port is already in use, try to use another.
          tentativePort++;
          continue;
        }
        break;
      }


      // Start up this ZK server
      standaloneServerFactory.startup(server);
      if (!waitForServerUp(tentativePort, CONNECTION_TIMEOUT)) {
        throw new IOException("Waiting for startup of standalone server");
      }


      // We have selected this port as a client port.

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    if (!started) {
      return;
    }
    // shut down all the zk servers
    for (int i = 0; i < standaloneServerFactoryList.size(); i++) {
      NIOServerCnxnFactory standaloneServerFactory =
        standaloneServerFactoryList.get(i);
      int clientPort = clientPortList.get(i);


      standaloneServerFactory.shutdown();
      if (!waitForServerDown(clientPort, CONNECTION_TIMEOUT)) {
        throw new IOException("Waiting for shutdown of standalone server");
      }
    }

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    if (!started || activeZKServerIndex < 0) {
      return -1;
    }


    // Shutdown the current active one
    NIOServerCnxnFactory standaloneServerFactory =
      standaloneServerFactoryList.get(activeZKServerIndex);
    int clientPort = clientPortList.get(activeZKServerIndex);


    standaloneServerFactory.shutdown();
    if (!waitForServerDown(clientPort, CONNECTION_TIMEOUT)) {
      throw new IOException("Waiting for shutdown of standalone server");
    }


    // remove the current active zk server

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      return;
    }


    int backupZKServerIndex = activeZKServerIndex + 1;
    // Shutdown the current active one
    NIOServerCnxnFactory standaloneServerFactory =
      standaloneServerFactoryList.get(backupZKServerIndex);
    int clientPort = clientPortList.get(backupZKServerIndex);


    standaloneServerFactory.shutdown();
    if (!waitForServerDown(clientPort, CONNECTION_TIMEOUT)) {
      throw new IOException("Waiting for shutdown of standalone server");
    }


    // remove this backup zk server

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        ZkTmpDir.delete();
        ZkTmpDir.mkdir();


        zks = new ZooKeeperServer(ZkTmpDir, ZkTmpDir,
                                  ZooKeeperServer.DEFAULT_TICK_TIME);
        serverFactory = new NIOServerCnxnFactory();
        serverFactory.configure(zkaddr, 100);
        serverFactory.startup(zks);


        boolean b = ClientBase.waitForServerUp(getZooKeeperConnectString(),
                                               ClientBase.CONNECTION_TIMEOUT);

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            throw new IOException("Couldn't create zk directory " + ZkTmpDir);
        }


        try {
            zks = new ZooKeeperServer(ZkTmpDir, ZkTmpDir, ZooKeeperDefaultPort);
            serverFactory =  new NIOServerCnxnFactory();
            serverFactory.configure(new InetSocketAddress(ZooKeeperDefaultPort), maxCC);
            serverFactory.startup(zks);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            LOG.error("Exception while instantiating ZooKeeper", e);

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