我是在单个服务器节点中使用hadoop的hadoop新手，我已经设置了hadoop环境，并将hadoop的conf文件夹中的core-site.xml文件设置为

<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value>/home/oracle/Hadoop/hadoop_temp_files</value>
</property>

<property>
<name>fs.default.name</name>
<value>hdfs://localhost:54310</value>
</property>
</configuration>

设置受尊重的配置后，我格式化namenode并启动代理。
所有的代理都按预期启动了，但没有dir。用hadoop创建临时文件。在hadoop内部，可能存在什么问题。

I am logged in to a server remotely, 
The usergroup oracle to which I am remotely logged into, however is not added to the sudoers and doesn't have admin right. Can this be the reason of the hadoop_temp_files dir not getting created.
Also when I started the agents all the agents started, but while stopping the agents by writting stop-all.sh the output responded:
There's no tasktracker to stop   and
there's no secondarynode to stop

请帮我澄清我的问题。