@Override
  public <T> Object execute(T... args) {
    boolean isSetTaskInfo = false;
    try {
      Boolean reassign = (Boolean) args[1];
      Map<Object, Object> conf = (Map<Object, Object>) args[2]; // args[0]:
      // delay,
      // args[1]:
      // reassign_flag,
      // args[2]:
      // conf
      if (conf != null) {
        boolean isConfUpdate = false;
        Map stormConf = data.getConf();

        // Update topology code
        Map topoConf = StormConfig.read_nimbus_topology_conf(stormConf, topologyid);
        StormTopology rawOldTopology = StormConfig.read_nimbus_topology_code(stormConf, topologyid);
        StormTopology rawNewTopology = NimbusUtils.normalizeTopology(conf, rawOldTopology, true);
        StormTopology sysOldTopology = rawOldTopology.deepCopy();
        StormTopology sysNewTopology = rawNewTopology.deepCopy();
        if (conf.get(Config.TOPOLOGY_ACKER_EXECUTORS) != null) {
          Common.add_acker(topoConf, sysOldTopology);
          Common.add_acker(conf, sysNewTopology);
          int ackerNum = JStormUtils.parseInt(conf.get(Config.TOPOLOGY_ACKER_EXECUTORS));
          int oldAckerNum = JStormUtils.parseInt(topoConf.get(Config.TOPOLOGY_ACKER_EXECUTORS));
          LOG.info("Update acker from oldAckerNum=" + oldAckerNum + " to ackerNum=" + ackerNum);
          topoConf.put(Config.TOPOLOGY_ACKER_EXECUTORS, ackerNum);
          isConfUpdate = true;
        }

        // If scale-out, setup task info for new added tasks
        setTaskInfo(sysOldTopology, sysNewTopology);
        isSetTaskInfo = true;

        // If everything is OK, write topology code into disk
        StormConfig.write_nimbus_topology_code(
            stormConf, topologyid, Utils.serialize(rawNewTopology));

        // Update topology conf if worker num has been updated
        Set<Object> keys = conf.keySet();
        Integer workerNum = JStormUtils.parseInt(conf.get(Config.TOPOLOGY_WORKERS));
        if (workerNum != null) {
          Integer oldWorkerNum = JStormUtils.parseInt(topoConf.get(Config.TOPOLOGY_WORKERS));
          topoConf.put(Config.TOPOLOGY_WORKERS, workerNum);
          isConfUpdate = true;

          LOG.info("Update worker num from " + oldWorkerNum + " to " + workerNum);
        }

        if (keys.contains(Config.ISOLATION_SCHEDULER_MACHINES)) {
          topoConf.put(
              Config.ISOLATION_SCHEDULER_MACHINES, conf.get(Config.ISOLATION_SCHEDULER_MACHINES));
        }

        if (isConfUpdate) {
          StormConfig.write_nimbus_topology_conf(stormConf, topologyid, topoConf);
        }
      }

      TopologyAssignEvent event = new TopologyAssignEvent();

      event.setTopologyId(topologyid);
      event.setScratch(true);
      event.setOldStatus(oldStatus);
      event.setReassign(reassign);
      if (conf != null) event.setScaleTopology(true);
      TopologyAssign.push(event);
      event.waitFinish();
    } catch (Exception e) {
      LOG.error("do-rebalance error!", e);
      // Rollback the changes on ZK
      if (isSetTaskInfo) {
        try {
          StormClusterState clusterState = data.getStormClusterState();
          clusterState.remove_task(topologyid, newTasks);
        } catch (Exception e1) {
          LOG.error("Failed to rollback the changes on ZK for task-" + newTasks, e);
        }
      }
    }

    DelayStatusTransitionCallback delayCallback =
        new DelayStatusTransitionCallback(
            data, topologyid, oldStatus, StatusType.rebalancing, StatusType.done_rebalance);
    return delayCallback.execute();
  }
Esempio n. 2
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  /**
   * Submit one Topology
   *
   * @param topologyname String: topology name
   * @param uploadedJarLocation String: already uploaded jar path
   * @param jsonConf String: jsonConf serialize all toplogy configuration to Json
   * @param topology StormTopology: topology Object
   */
  @SuppressWarnings("unchecked")
  @Override
  public void submitTopologyWithOpts(
      String topologyname,
      String uploadedJarLocation,
      String jsonConf,
      StormTopology topology,
      SubmitOptions options)
      throws AlreadyAliveException, InvalidTopologyException, TopologyAssignException, TException {
    LOG.info("Receive " + topologyname + ", uploadedJarLocation:" + uploadedJarLocation);
    // @@@ Move validate topologyname in client code
    try {
      checkTopologyActive(data, topologyname, false);
    } catch (AlreadyAliveException e) {
      LOG.info(topologyname + " is already exist ");
      throw e;
    } catch (Exception e) {
      LOG.info("Failed to check whether topology is alive or not", e);
      throw new TException(e);
    }

    int counter = data.getSubmittedCount().incrementAndGet();
    String topologyId = topologyname + "-" + counter + "-" + TimeUtils.current_time_secs();

    Map<Object, Object> serializedConf = (Map<Object, Object>) JStormUtils.from_json(jsonConf);
    if (serializedConf == null) {
      LOG.warn("Failed to serialized Configuration");
      throw new InvalidTopologyException("Failed to serilaze topology configuration");
    }

    serializedConf.put(Config.TOPOLOGY_ID, topologyId);
    serializedConf.put(Config.TOPOLOGY_NAME, topologyname);

    try {
      Map<Object, Object> stormConf;

      stormConf = NimbusUtils.normalizeConf(conf, serializedConf, topology);

      Map<Object, Object> totalStormConf = new HashMap<Object, Object>(conf);
      totalStormConf.putAll(stormConf);

      StormTopology normalizedTopology = NimbusUtils.normalizeTopology(stormConf, topology);

      // this validates the structure of the topology
      Common.validate_basic(normalizedTopology, totalStormConf, topologyId);
      // don't need generate real topology, so skip Common.system_topology
      // Common.system_topology(totalStormConf, topology);

      StormClusterState stormClusterState = data.getStormClusterState();

      // create /local-dir/nimbus/topologyId/xxxx files
      setupStormCode(conf, topologyId, uploadedJarLocation, stormConf, normalizedTopology);

      // generate TaskInfo for every bolt or spout in ZK
      // /ZK/tasks/topoologyId/xxx
      setupZkTaskInfo(conf, topologyId, stormClusterState);

      // make assignments for a topology
      TopologyAssignEvent assignEvent = new TopologyAssignEvent();
      assignEvent.setTopologyId(topologyId);
      assignEvent.setScratch(false);
      assignEvent.setTopologyName(topologyname);
      assignEvent.setOldStatus(
          Thrift.topologyInitialStatusToStormStatus(options.get_initial_status()));

      TopologyAssign.push(assignEvent);
      LOG.info("Submit for " + topologyname + " with conf " + serializedConf);

      boolean isSuccess = assignEvent.waitFinish();
      if (isSuccess == true) {
        LOG.info("Finish submit for " + topologyname);
      } else {
        throw new FailedAssignTopologyException(assignEvent.getErrorMsg());
      }

    } catch (FailedAssignTopologyException e) {
      StringBuilder sb = new StringBuilder();
      sb.append("Fail to sumbit topology, Root cause:");
      if (e.getMessage() == null) {
        sb.append("submit timeout");
      } else {
        sb.append(e.getMessage());
      }

      sb.append("\n\n");
      sb.append("topologyId:" + topologyId);
      sb.append(", uploadedJarLocation:" + uploadedJarLocation + "\n");
      LOG.error(sb.toString(), e);
      throw new TopologyAssignException(sb.toString());
    } catch (InvalidParameterException e) {
      StringBuilder sb = new StringBuilder();
      sb.append("Fail to sumbit topology ");
      sb.append(e.getMessage());
      sb.append(", cause:" + e.getCause());
      sb.append("\n\n");
      sb.append("topologyId:" + topologyId);
      sb.append(", uploadedJarLocation:" + uploadedJarLocation + "\n");
      LOG.error(sb.toString(), e);
      throw new InvalidParameterException(sb.toString());
    } catch (Throwable e) {
      StringBuilder sb = new StringBuilder();
      sb.append("Fail to sumbit topology ");
      sb.append(e.getMessage());
      sb.append(", cause:" + e.getCause());
      sb.append("\n\n");
      sb.append("topologyId:" + topologyId);
      sb.append(", uploadedJarLocation:" + uploadedJarLocation + "\n");
      LOG.error(sb.toString(), e);
      throw new TopologyAssignException(sb.toString());
    }
  }