Example #1
0
  protected void startUp() {
    context = ZMQ.context(1);
    listener = context.socket(ZMQ.REP);
    listener.bind("tcp://*:5555");

    poller = new ZMQ.Poller(1);
    poller.register(listener, ZMQ.Poller.POLLIN);

    log.info("started");
  }
Example #2
0
  @Override
  protected void run() throws Exception {
    while (!Thread.currentThread().isInterrupted() && isRunning()) {
      byte[] message = "".getBytes();
      poller.poll(200);
      if (poller.pollin(0)) {
        try {
          message = listener.recv(0);
        } catch (ZMQException e) {
          if (e.getErrorCode() == ZMQ.Error.ETERM.getCode()) {
            break;
          }
        }
        log.info("hi: {}", message);

        String response = "World";
        listener.send(response.getBytes(), 0);
      }
    }
  }
Example #3
0
  @Override
  public void run() {
    Message message = null;
    boolean stop = false;

    byte id[], msg[];

    ZMQ.Socket frontend = null;

    int numLoaders = Integer.parseInt(Configuration.getProperty(Configuration.Key.NUM_LOADERS));

    frontend = context.socket(ZMQ.ROUTER);
    frontend.bind("tcp://*:" + Configuration.getProperty(Configuration.Key.NODE_PORT));

    ZMQ.Poller poller = context.poller(3 + numLoaders);

    poller.register(frontend, ZMQ.Poller.POLLIN);

    commandWorkerManager.init(context, poller); // Registers two backends

    loadWorkerManager.init(context, poller, numLoaders);

    searchWorkerManagerV5.init(context);

    System.out.println("ZMQ Server started....");

    try {
      do {
        poller.poll();
        if (poller.pollin(0)) {

          boolean msgFromReq = false;

          id = frontend.recv(0);

          msg = frontend.recv(0);

          // In case we got a message from a REQ socket
          if (frontend.hasReceiveMore()) {
            msg = frontend.recv(0);
            msgFromReq = true;
          }

          message = Message.readFromBytes(msg);

          switch (message.getType()) {
            case CONFIG_CLUSTER_REQ:
              Message configResponse = new Message(MessageType.CONFIG_CLUSTER_REP);
              try {
                SteffiGraph.getInstance().initializeMemberIndexes();
                searchWorkerManagerV5.initializeClientThreads();

                configResponse.setBody("OK");
              } catch (Exception x) {
                configResponse.setBody("ERROR: " + x.getMessage());
                ImgLogger.logError(x, x.getMessage());
              }
              frontend.send(id, ZMQ.SNDMORE);
              frontend.send(Message.convertMessageToBytes(configResponse), 0);
              break;
            case CLEAR:
              break;

            case LOAD_REQ:
              loadWorkerManager.sendToLoader(id, msg);
              break;
            case SEARCH_REQ:
              searchMsgCounter++;
              searchWorkerManagerV5.sendToSearchWorker((SearchReqMsg) message);
              break;
            case STOP:
              loadWorkerManager.stop();
              commandWorkerManager.stop();
              searchWorkerManagerV5.stop();

              SteffiGraph.getInstance().closeGraphClients();

              stop = true;
              break;
            case END_SEARCH:
              searchWorkerManagerV5.endSearch(((SearchEndMsg) message).getSearchId());
              break;
            default:
              commandWorkerManager.sendToCommandWorker(id, msg, msgFromReq);
              break;
          }
        }

        if (poller.pollin(1)) {
          commandWorkerManager.sentToFrontend(frontend, true);
        }

        if (poller.pollin(2)) {
          commandWorkerManager.sentToFrontend(frontend, false);
        }

        for (int i = 0; i < numLoaders; i++) {
          if (poller.pollin(i + 3)) {
            loadWorkerManager.sendToFrontend(i, frontend);
          }
        }

      } while (!stop);
    } catch (Exception x) {
      ImgLogger.logError(x, "Error on node server");
    } finally {
      frontend.close();
      context.term();

      CacheContainer.getCellCache().stop();
      CacheContainer.getCacheContainer().stop();
    }
    System.out.println("Main node server closed...");
    System.out.println(CacheContainer.getCacheContainer().getStatus());
  }