oozie失败，并出现java.net.ConnectException：连接被拒绝

Question

我正在使用cloudera快速入门5.13，并且在运行创建的oozie工作流程时遇到问题。 由以下原因引起：java.net.ConnectException：在连接异常时从quickstart.cloudera / 10.0.2.15到localhost：8021调用失败：java.net.ConnectException：连接被拒绝；有关更多详细信息，请参见：http://wiki.apache.org/hadoop/ConnectionRefused

我也尝试过重新启动名称节点及其正常运行状态。

<workflow-app xmlns = "uri:oozie:workflow:0.4" name = "simple-Workflow">
<start to = "Create_External_Table" />

<action name = "Create_External_Table">
<hive xmlns = "uri:oozie:hive-action:0.4">
<job-tracker>localhost:8021</job-tracker>
<name-node>hdfs://localhost:8020</name-node>
<configuration>
<property>
<name>mapred.compress.map.output</name>
<value>true</value>
</property>
<property>
<name>oozie.hive.defaults</name>
<value>/usr/lib/hive/conf/hive-site.xml</value>
<property>
</configuration>
<script>/user/cloudera/externaltable.hql</script>
</hive>
<ok to = "end" />
<error to = "kill_job" />
</action>

<kill name = "kill_job">
<message>Job failed</message>
</kill>

<end name = "end" />

</workflow-app>