How to use

getMaxNumberOfParallelSubtasks

method

in

org.apache.flink.api.common.TaskInfo

@Override
public int getMaxNumberOfParallelSubtasks() {
  return taskInfo.getMaxNumberOfParallelSubtasks();
}

taskInfo.getMaxNumberOfParallelSubtasks(),
taskInfo.getNumberOfParallelSubtasks(),
taskInfo.getIndexOfThisSubtask());
    operatorIdentifierText,
    keySerializer,
    taskInfo.getMaxNumberOfParallelSubtasks(),
    keyGroupRange,
    environment.getTaskKvStateRegistry(),

int numKeyGroups = getEnvironment().getTaskInfo().getMaxNumberOfParallelSubtasks();
int numSubtasks = getEnvironment().getTaskInfo().getNumberOfParallelSubtasks();
int subtaskIndex = getEnvironment().getTaskInfo().getIndexOfThisSubtask();

@Override
public int getMaxNumberOfParallelSubtasks() {
  return taskInfo.getMaxNumberOfParallelSubtasks();
}

@Override
public int getMaxNumberOfParallelSubtasks() {
  return taskInfo.getMaxNumberOfParallelSubtasks();
}

taskInfo.getMaxNumberOfParallelSubtasks(),
taskInfo.getNumberOfParallelSubtasks(),
taskInfo.getIndexOfThisSubtask());
    operatorIdentifierText,
    keySerializer,
    taskInfo.getMaxNumberOfParallelSubtasks(),
    keyGroupRange,
    environment.getTaskKvStateRegistry(),

taskInfo.getMaxNumberOfParallelSubtasks(),
taskInfo.getNumberOfParallelSubtasks(),
taskInfo.getIndexOfThisSubtask());
    operatorIdentifierText,
    keySerializer,
    taskInfo.getMaxNumberOfParallelSubtasks(),
    keyGroupRange,
    environment.getTaskKvStateRegistry(),

private void initKeyedState() {
  try {
    TypeSerializer<Object> keySerializer = config.getStateKeySerializer(getUserCodeClassloader());
    // create a keyed state backend if there is keyed state, as indicated by the presence of a key serializer
    if (null != keySerializer) {
      KeyGroupRange subTaskKeyGroupRange = KeyGroupRangeAssignment.computeKeyGroupRangeForOperatorIndex(
          container.getEnvironment().getTaskInfo().getMaxNumberOfParallelSubtasks(),
          container.getEnvironment().getTaskInfo().getNumberOfParallelSubtasks(),
          container.getEnvironment().getTaskInfo().getIndexOfThisSubtask());
      this.keyedStateBackend = container.createKeyedStateBackend(
          keySerializer,
          // The maximum parallelism == number of key group
          container.getEnvironment().getTaskInfo().getMaxNumberOfParallelSubtasks(),
          subTaskKeyGroupRange);
      this.keyedStateStore = new DefaultKeyedStateStore(keyedStateBackend, getExecutionConfig());
    }
  } catch (Exception e) {
    throw new IllegalStateException("Could not initialize keyed state backend.", e);
  }
}