Yarn HA

---

<configuration>
  <!-- Resource Manager Configs -->
  <property>
    <name>yarn.resourcemanager.connect.retry-interval.ms</name>
    <value>2000</value>
  </property>
  <property>
     <name>yarn.resourcemanager.ha.enabled</name>
     <value>true</value>
  </property>
  <!--是否启用自动故障转移。默认情况下，在启用 HA 时，启用自动故障转移。-->
  <property>
     <name>yarn.resourcemanager.ha.automatic-failover.enabled</name>
     <value>true</value>
  </property>
  <!--启用内置的自动故障转移。默认情况下，在启用 HA 时，启用内置的自动故障转移。--> 
  <property>
    <name>yarn.resourcemanager.ha.automatic-failover.embedded</name>
    <value>true</value>
  </property>
  <property>
    <name>yarn.resourcemanager.cluster-id</name>
    <value>yarn-rm-cluster</value>
  </property>
  <property>
    <name>yarn.resourcemanager.ha.rm-ids</name>
    <value>rm1,rm2</value>
  </property>

   <property>
    <name>yarn.resourcemanager.scheduler.class</name>
    <value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler</value>
  </property>
  <property>
    <name>yarn.resourcemanager.recovery.enabled</name>
    <value>true</value>
  </property>
  <property>
    <name>yarn.resourcemanager.store.class</name>
    <value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore</value>
  </property>

  <property>
    <name>yarn.resourcemanager.zk-address</name>
    <value>master:2181,cps03:2181,cps04:2181</value>
  </property>
  <property>
    <name>yarn.app.mapreduce.am.scheduler.connection.wait.interval-ms</name>
    <value>5000</value>
  </property>
  <property>
    <name>yarn.resourcemanager.work-preserving-recovery.enabled</name>
    <value>true</value>
  </property>


  <!-- RM1 configs -->  
  <property>
    <name>yarn.resourcemanager.address.rm1</name>
    <value>cps04:8032</value>
  </property>
  <property>
    <name>yarn.resourcemanager.scheduler.address.rm1</name>
    <value>cps04:8034</value>
  </property>
  <property>
    <name>yarn.resourcemanager.webapp.https.address.rm1</name>
    <value>cps04:18089</value>
  </property>
  <property>
    <name>yarn.resourcemanager.webapp.address.rm1</name>
    <value>cps04:18083</value>
  </property>
  <property>
    <name>yarn.resourcemanager.resource-tracker.address.rm1</name>
    <value>cps04:18190</value>
  </property>
  <property>
    <name>yarn.resourcemanager.admin.address.rm1</name>
    <value>cps04:18191</value>
  </property>

  <!-- RM2 configs -->

  <property>
    <name>yarn.resourcemanager.address.rm2</name>
    <value>cps03:8032</value>
  </property>
  <property>
    <name>yarn.resourcemanager.scheduler.address.rm2</name>
    <value>cps03:8034</value>
  </property>
  <property>
    <name>yarn.resourcemanager.webapp.https.address.rm2</name>
    <value>cps03:18089</value>
  </property>
  <property>
    <name>yarn.resourcemanager.webapp.address.rm2</name>
    <value>cps03:18083</value>
  </property>
  <property>
    <name>yarn.resourcemanager.resource-tracker.address.rm2</name>
    <value>cps03:18190</value>
  </property>
  <property>
    <name>yarn.resourcemanager.admin.address.rm2</name>
    <value>cps03:18191</value>
  </property>

  <!-- Node Manager Configs -->
  <property>
    <description>Address where the localizer IPC is.</description>
    <name>yarn.nodemanager.localizer.address</name>
    <value>0.0.0.0:23344</value>
  </property>
  <property>
    <description>NM Webapp address.</description>
    <name>yarn.nodemanager.webapp.address</name>
    <value>0.0.0.0:23999</value>
  </property>
  <property>
    <name>yarn.nodemanager.aux-services</name>
    <value>mapreduce_shuffle</value>
  </property>
  <property>
    <name>yarn.nodemanager.local-dirs</name>
    <value>/data/hadoop/yarn/local</value>
  </property>
  <property>
    <name>yarn.nodemanager.log-dirs</name>
    <value>/data/hadoop/yarn/log</value>
  </property>
  <property>
    <name>mapreduce.shuffle.port</name>
    <value>23080</value>
  </property>
  <property>
    <name>yarn.resourcemanager.work-preserving-recovery.enabled</name>
    <value>true</value>
  </property>

  <property>
    <name>yarn.nodemanager.resource.cpu-vcores</name>
    <value>14</value>
  </property>
  <property>
      <name>yarn.scheduler.maximum-allocation-vcores</name>
      <value>32</value>
  </property>

  <property>
      <name>yarn.nodemanager.resource.memory-mb</name>
      <value>12288</value>
  </property> 


  <property>
      <name>yarn.scheduler.maximum-allocation-mb</name>
      <value>4096</value>
  </property>    

   <property>
      <name>yarn.log-aggregation-enable</name>
      <value>true</value>
  </property> 
  <property>
      <name>yarn.log-aggregation.retain-seconds</name>
      <value>604800</value>
  </property> 

</configuration>