通过带有oozie和hue的uber jar运行spark作业

h43kikqp  于 2021-06-02  发布在  Hadoop
关注(0)|答案(1)|浏览(460)

我目前正在学习如何使用ApacheOozie在CDH5.8中运行spark作业,但似乎发现了一些问题。
我正在使用intellij>build工件(到uberjar/fatjar)编译我的spark作业,然后删除它的清单文件。然后我运行spark submit来运行jar。很好用。
但当我和oozie指定了一个Spark动作。我得到以下错误:

Failing Oozie Launcher, Main class [org.apache.oozie.action.hadoop.SparkMain], exception invoking main(), java.lang.ClassNotFoundException: Class org.apache.oozie.action.hadoop.SparkMain not found
java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.oozie.action.hadoop.SparkMain not found
    at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2199)
    at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:234)
    at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
    at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
    at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:415)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693)
    at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: java.lang.ClassNotFoundException: Class org.apache.oozie.action.hadoop.SparkMain not found
    at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2105)
    at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2197)
    ... 9 more

作业属性:

oozie.use.system.libpath=false
security_enabled=False
dryrun=False
jobTracker=master.meshiang:8032
nameNode=hdfs://master.meshiang:8020

我的工作流程:

<workflow-app name="CSV" xmlns="uri:oozie:workflow:0.4">
    <start to="spark-2bab"/>
    <kill name="Kill">
        <message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
    </kill>
    <action name="spark-2bab">
        <spark xmlns="uri:oozie:spark-action:0.1">
            <job-tracker>${jobTracker}</job-tracker>
            <name-node>${nameNode}</name-node>
            <master>local[*]</master>
            <mode>client</mode>
            <name>MySpark</name>
              <class>ETL.CSVTransform</class>
            <jar>/user/meshiang/jar/Spark-GetData.jar</jar>
              <arg>work_id</arg>
              <arg>csv_table</arg>
              <arg>id/FirstName/Lastname</arg>
              <arg>/user/meshiang/csv/ST1471448595.csv</arg>
              <arg>,</arg>
        </spark>
        <ok to="End"/>
        <error to="Kill"/>
    </action>
    <end name="End"/>
</workflow-app>

我已经做了:
当我将同一个jar放入工作区的/lib文件夹中,并以与上面相同的方式使用它时。作业运行了10分钟,自行终止,没有显示任何错误代码或消息。
我在hue做了spark的工作。我收到以下信息
错误:

JA018
Error Message   Job aborted due to stage failure: Task 0 in stage 0.0 failed 1 times, most recent failure: Lost task 0.0 in stage 0.0 (TID 0, localhost): java.lang.RuntimeException: Stream '/jars/oozie-examples.jar' was not found. at org.apache.spark.network.client.TransportResponseHandler.handle(TransportResponseHandler.java:219) at org.apache.spark.network.server.TransportChannelHandler.channelRead0(TransportChannelHandler.java:106) at org.apache.spark.network.server.TransportChannelHandler.channelRead0(Tr

我的问题:
我应该只编译我需要的类并使用oozie sharelibs吗?oozie一般支持uber jars吗?
如果我使用的是pig/sqoop,我也需要这样做吗?

l5tcr1uw

l5tcr1uw1#

解决问题 ClassNotFoundException: Class org.apache.oozie.action.hadoop.SparkMain 您需要启用oozie系统库属性。

oozie.use.system.libpath=true.

这是运行任何Hive、清管器、sqoop、spark等作业所必需的。
您可以编译和构建spark应用程序jar,并将它们放入 lib oozie应用程序路径下的目录。oozie application path是hdfs中存储和引用 workflow.xml 文件。
希望这会有帮助。谢谢。

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