我正在尝试使用Apache Beam 0.6.0在GCP上启动Dataflow作业。由于无法使用"mvn:execjava"启动作业,因此我正在使用shade插件编译uber jar。我包含了以下依赖项:
<dependency>
<groupId>org.apache.beam</groupId>
<artifactId>beam-runners-google-cloud-dataflow-java</artifactId>
<version>0.6.0-SNAPSHOT</version>
</dependency>
我遇到了以下异常:
Exception in thread "main" java.lang.IllegalArgumentException: Unknown 'runner' specified 'DataflowRunner', supported pipeline runners [DirectRunner]
at org.apache.beam.sdk.options.PipelineOptionsFactory.parseObjects(PipelineOptionsFactory.java:1609)
at org.apache.beam.sdk.options.PipelineOptionsFactory.access$400(PipelineOptionsFactory.java:104)
at org.apache.beam.sdk.options.PipelineOptionsFactory$Builder.as(PipelineOptionsFactory.java:289)
at com.disney.dtss.desa.tools.SpannerSinkTest.main(SpannerSinkTest.java:116)
Caused by: java.lang.ClassNotFoundException: DataflowRunner
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.beam.sdk.options.PipelineOptionsFactory.parseObjects(PipelineOptionsFactory.java:1595)
我还有什么遗漏吗?
mvn compile exec:java
启动管道时,它可以正常工作,但是当我构建jar包时它失败了。超级jar包包含了必要的类。 - Paweł Szczur