报错情况
启动时 出现 Nodemanager 无法启动, 查看日志 发现报错如下 :
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.
解决办法
此原因是因为在nodemanager节点资源不足导致角色无法启动,需要在nodemanager节点加入如下参数加以资源使用限制
<property>
<name>yarn.nodemanager.resource.memory-mb</name>
<value>2048</value>
</property>
<property>
<name>yarn.nodemanager.resource.cpu-vcores</name>
<value>1</value>
</property>