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?
1条答案
按热度按时间l5tcr1uw1#
解决问题
ClassNotFoundException: Class org.apache.oozie.action.hadoop.SparkMain
您需要启用oozie系统库属性。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。