CDH 版本Hadoop Yarn配置容量调度器（默认是公平调度器）

配置中进行如下调整：

其实就是在在yarn-site.xm中添加yarn.resourcemanager.scheduler.class，修改成容量调度器：

<property>
    <name>yarn.resourcemanager.scheduler.class</name>
    <value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler</value>
</property>

配置中搜索yarn.scheduler.capacity.root.queues，以XML格式查看，导入以下配置后重启yarn：

修改后的配置：

<configuration>
<property>
    <name>yarn.scheduler.capacity.maximum-applications</name>
    <value>10000</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.maximum-am-resource-percent</name>
    <value>0.1</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.resource-calculator</name>
    <value>org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.queues</name>
    <value>default,dmgeo</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.default.capacity</name>
    <value>40</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.dmgeo.capacity</name>
    <value>60</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.default.user-limit-factor</name>
    <value>1</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.dmgeo.user-limit-factor</name>
    <value>1</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.default.maximum-capacity</name>
    <value>100</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.dmgeo.maximum-capacity</name>
    <value>100</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.default.state</name>
    <value>RUNNING</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.dmgeo.state</name>
    <value>RUNNING</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.default.acl_submit_applications</name>
    <value>*</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.dmgeo.acl_submit_applications</name>
    <value>*</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.default.acl_administer_queue</name>
    <value>*</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.dmgeo.acl_administer_queue</name>
    <value>*</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.default.acl_application_max_priority</name>
    <value>*</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.root.dmgeo.acl_application_max_priority</name>
    <value>*</value>
  </property>
   <property>
     <name>yarn.scheduler.capacity.root.default.maximum-application-lifetime </name>
     <value>-1</value>
   </property>
   <property>
     <name>yarn.scheduler.capacity.root.dmgeo.maximum-application-lifetime </name>
     <value>-1</value>
   </property>
   <property>
     <name>yarn.scheduler.capacity.root.default.default-application-lifetime </name>
     <value>-1</value>
   </property>
   <property>
     <name>yarn.scheduler.capacity.root.dmgeo.default-application-lifetime </name>
     <value>-1</value>
   </property>
  <property>
    <name>yarn.scheduler.capacity.node-locality-delay</name>
    <value>40</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.rack-locality-additional-delay</name>
    <value>-1</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.queue-mappings</name>
    <value></value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.queue-mappings-override.enable</name>
    <value>false</value>
  </property>
  <property>
    <name>yarn.scheduler.capacity.per-node-heartbeat.maximum-offswitch-assignments</name>
    <value>1</value>
  </property>
</configuration>  

默认的配置：

<configuration><property><name>yarn.scheduler.capacity.root.queues</name><value>default</value></property><property><name>yarn.scheduler.capacity.root.capacity</name><value>100</value></property><property><name>yarn.scheduler.capacity.root.default.capacity</name><value>100</value></property></configuration>

参考链接：https://www.cnblogs.com/hongfeng2019/p/11477583.html

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