本文整理了Java中org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueueManager.isEmpty方法的一些代码示例，展示了QueueManager.isEmpty的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。QueueManager.isEmpty方法的具体详情如下：
包路径：org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueueManager
类名称：QueueManager
方法名：isEmpty

QueueManager.isEmpty介绍

[英]Returns true if there are no applications, running or not, in the given queue or any of its descendents.
[中]

代码示例

代码示例来源：origin: com.github.jiayuhan-it/hadoop-yarn-server-resourcemanager

/**
 * Remove the queue if it and its descendents are all empty.
 * @param queue
 * @return true if removed, false otherwise
 */
private boolean removeQueueIfEmpty(FSQueue queue) {
 if (isEmpty(queue)) {
  removeQueue(queue);
  return true;
 }
 return false;
}

代码示例来源：origin: org.apache.hadoop/hadoop-yarn-server-resourcemanager

/**
 * Remove the queue if it and its descendents are all empty.
 * @param queue
 * @return true if removed, false otherwise
 */
private boolean removeQueueIfEmpty(FSQueue queue) {
 if (isEmpty(queue)) {
  removeQueue(queue);
  return true;
 }
 return false;
}

代码示例来源：origin: ch.cern.hadoop/hadoop-yarn-server-resourcemanager

/**
 * Remove the queue if it and its descendents are all empty.
 * @param queue
 * @return true if removed, false otherwise
 */
private boolean removeQueueIfEmpty(FSQueue queue) {
 if (isEmpty(queue)) {
  removeQueue(queue);
  return true;
 }
 return false;
}

代码示例来源：origin: com.github.jiayuhan-it/hadoop-yarn-server-resourcemanager

/**
 * Returns true if there are no applications, running or not, in the given
 * queue or any of its descendents.
 */
protected boolean isEmpty(FSQueue queue) {
 if (queue instanceof FSLeafQueue) {
  FSLeafQueue leafQueue = (FSLeafQueue)queue;
  return queue.getNumRunnableApps() == 0 &&
    leafQueue.getNumNonRunnableApps() == 0;
 } else {
  for (FSQueue child : queue.getChildQueues()) {
   if (!isEmpty(child)) {
    return false;
   }
  }
  return true;
 }
}

代码示例来源：origin: ch.cern.hadoop/hadoop-yarn-server-resourcemanager

/**
 * Returns true if there are no applications, running or not, in the given
 * queue or any of its descendents.
 */
protected boolean isEmpty(FSQueue queue) {
 if (queue instanceof FSLeafQueue) {
  FSLeafQueue leafQueue = (FSLeafQueue)queue;
  return queue.getNumRunnableApps() == 0 &&
    leafQueue.getNumNonRunnableApps() == 0;
 } else {
  for (FSQueue child : queue.getChildQueues()) {
   if (!isEmpty(child)) {
    return false;
   }
  }
  return true;
 }
}

代码示例来源：origin: org.apache.hadoop/hadoop-yarn-server-resourcemanager

/**
 * Returns true if there are no applications, running or not, in the given
 * queue or any of its descendents.
 */
protected boolean isEmpty(FSQueue queue) {
 if (queue instanceof FSLeafQueue) {
  FSLeafQueue leafQueue = (FSLeafQueue)queue;
  return queue.getNumRunnableApps() == 0 &&
    leafQueue.getNumNonRunnableApps() == 0 &&
    leafQueue.getNumAssignedApps() == 0;
 } else {
  for (FSQueue child : queue.getChildQueues()) {
   if (!isEmpty(child)) {
    return false;
   }
  }
  return true;
 }
}

代码示例来源：origin: org.apache.hadoop/hadoop-yarn-server-resourcemanager

assertTrue("root.a is not empty", queueManager.isEmpty(q));
q = queueManager.getLeafQueue("root.a", false);
assertNotNull("root.a does not exist", q);
assertFalse("root.a is empty", queueManager.isEmpty(q));
assertFalse("root.a is empty", queueManager.isEmpty(q));
q = queueManager.getLeafQueue("root.a", false);
assertNotNull("root.a has been removed", q);
assertFalse("root.a is empty", queueManager.isEmpty(q));

代码示例来源：origin: org.apache.hadoop/hadoop-yarn-server-resourcemanager

assertTrue("root.leaf1 is not empty", queueManager.isEmpty(q));
q.addAssignedApp(applicationId);
q = queueManager.getLeafQueue("root.leaf1", false);
assertFalse("root.leaf1 is empty", queueManager.isEmpty(q));
q = queueManager.getLeafQueue("root.leaf1", false);
assertNotNull("root.leaf1 has been removed", q);
assertFalse("root.leaf1 is empty", queueManager.isEmpty(q));
q = queueManager.getLeafQueue("root.leaf1", false);
assertNotNull("root.leaf1 has been removed", q);
assertFalse("root.leaf1 is empty", queueManager.isEmpty(q));
assertTrue("root.leaf1 is not empty", queueManager.isEmpty(q));