Yarn调度配置

• 类名：容量调度器
• org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.CapacityScheduler
• 配置文件：capacity-scheduler.xml

	
	
		yarn.scheduler.capacity.maximum-applications
		10000
	

	
	
		yarn.scheduler.capacity.maximum-am-resource-percent
		0.1
	

	
	
		 yarn.scheduler.capacity.resource-calculator
		 org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator
	

	
	
		yarn.scheduler.capacity.root.queues
		default
	

	
	
		 yarn.scheduler.capacity.root.default.capacity
		 100
	

	
	
		yarn.scheduler.capacity.root.default.user-limit-factor
		1
	

	
	
		yarn.scheduler.capacity.root.default.maximum-capacity
		100
	

1. 添加3个队列，名字为a，b，c，这三个队列必须放在root队列中

   
   	yarn.scheduler.capacity.root.queues
   	a,b,c
   
   

2. 指定这3个队列占用资源的比例，他们的和必须是100%

   
   	yarn.scheduler.capacity.root.a.capacity
   	40
   
   
   	yarn.scheduler.capacity.root.b.capacity
   	20
   
   
   	yarn.scheduler.capacity.root.c.capacity
   	40
   
   

3. 定义2个子队列a1和a2，设置他们的资源比例

   
   	yarn.scheduler.capacity.root.a.queues
   	a1,a2
   
   
   	yarn.scheduler.capacity.root.a.a1.capacity
   	40
   
   
   	yarn.scheduler.capacity.root.a.a2.capacity
   	60
   
   

4. 结果