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hadoop - 如何读取子工作流程中的配置属性（单独的 xml 文件）？

问题描述

在单独的子工作流文件中读取配置属性时，我收到下面提到的错误消息。我正在发布示例代码。感谢您帮助解决此问题。谢谢！

2019-01-17 08:44:52,885 WARN ActionStartXCommand:523 - SERVER[localhost] USER[user1] GROUP[-] TOKEN[] APP[subWorkflow] JOB[0338958-190114130857167-oozie-oozi-W] ACTION[0338958- 190114130857167-oozie-oozi-W@subWorkflowAction1] ActionStartXCommand javax.servlet.jsp.el.E​​LException 中的 ELException：无法解析变量 [jobtracker]

协调器作业触发命令

oozie job --oozie http://localhost:11000/oozie --config /home/user/oozie-scripts/props/job.properties -run

工作属性

namenode=hdfs://localhost
workflowpath=${namenode}/user/user1/oozie-workflow/parentWorkflow.xml
frequency=25
starttime=2018-08-06T13\:29Z
endtime=2108-08-06T13\:29Z
timezone=UTC
oozie.coord.application.path=${namenode}/user/user1/oozie-workflow/coordinator.xml
jobtracker=http://localhost:8088
scriptpath=/user/user1/oozie-workflow

协调员

<coordinator-app name="sampleCoord" frequency="${frequency}" start="${starttime}" end="${endtime}" timezone="${timezone}" xmlns="uri:oozie:coordinator:0.4">
<action>
<workflow>
<app-path>${workflowpath}</app-path>
</workflow>
</action>
</coordinator-app>

父工作流程

<workflow-app xmlns = "uri:oozie:workflow:0.4" name = "Parent-Workflow">
<start to = "workflowAction1" />
<action name = "workflowAction1">
<sub-workflow>
<app-path>/user/user1/oozie-workflow/subWorkflow1.xml</app-path>
</sub-workflow>
<ok to = "end" />
<error to = "end" />
</action>

子工作流程

<workflow-app xmlns = "uri:oozie:workflow:0.4" name = "subWorkflow">
<start to = "subWorkflowAction1" />
<action name = "subWorkflowAction1">
<hive xmlns = "uri:oozie:hive-action:0.4">
<job-tracker>${jobtracker}</job-tracker>
<script>${scriptpath}/dropTempTable.hive</script>
<param>Temp_TableVar=${concat(concat("HBASE_",replaceAll(wf:id(),"-    ","_")),"_TEMP")}</param>
</hive>

<ok to = "end" />
<error to = "kill_job" />
</action>


<kill name = "kill_job">
<message>Job failed</message>
</kill>
<end name = "end" />
</workflow-app>

标签： hadoopoozieoozie-coordinatoroozie-workflow

解决方案

在父工作流 xml 文件中添加传播配置标记解决了该问题。

<workflow-app xmlns = "uri:oozie:workflow:0.4" name = "Parent-Workflow">
<start to = "workflowAction1" />
<action name = "workflowAction1">
<sub-workflow>
<app-path>/user/user1/oozie-workflow/subWorkflow1.xml</app-path>
<propagate-configuration />
</sub-workflow>
<ok to = "end" />
<error to = "end" />

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