Hadoop踩坑筆記 - NodeManager from sht-sgmhadoopdn-04 doesn't satisfy minimum allocations, Sendin

報錯情況

啓動時 出現 Nodemanager 無法啓動, 查看日誌 發現報錯如下 :

org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Recieved SHUTDOWN signal from Resourcemanager ,Registration of NodeManager failed, Message from ResourceManager: NodeManager from  sht-sgmhadoopdn-04 doesn't satisfy minimum allocations, Sending SHUTDOWN signal to the NodeManager.

解決辦法

此原因是因爲在nodemanager節點資源不足導致角色無法啓動，需要在nodemanager節點加入如下參數加以資源使用限制

<property>
         <name>yarn.nodemanager.resource.memory-mb</name>
         <value>2048</value>
  </property>

  <property>
        <name>yarn.nodemanager.resource.cpu-vcores</name>
        <value>1</value>
  </property>