yarn启动后自动关闭，JPS查看有resourcemanager，无resourcemanager

yarn-site.xml配置文件如下：

<?xml version="1.0"?>
<!--
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License. See accompanying LICENSE file.
-->
<configuration>

<!-- Site specific YARN configuration properties -->
<property>
<name>yarn.resourcemanager.hostname</name>
<value>master</value>
</property>

<property>
<name>yarn.nodemaneger.aux-services</name>
<value>mapreduce_shuffle</value>
</property>


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

<property>
<name>yarn.nodemanager.resource.memory-mb</name>
<value>256</value>
</property>

</configuration>
~                 

出错原因，yarn.nodemanager.resource.memory-mb的value不能小于1G，即（1024）。自己电脑内存小，刚开始到每个虚拟机的内存小，改为1024后就能通过start-yarn.sh命令正常启动yarn（需要使用scp yarn-site.xml slave3:$PWD命令复制到nodemanager节点）。

正常启动后的节点详情