Question

在本地运行我的Beam管道时，所有功能都能按预期工作，但是当尝试在DataflowRunner上运行它时，我突然收到以下错误。老实说，我什至不知道从哪里开始对此进行评估，因为DataflowRunner似乎是一个黑匣子。

Jan 14, 2019 11:26:51 AM org.apache.beam.runners.dataflow.DataflowRunner fromOptions
INFO: PipelineOptions.filesToStage was not specified. Defaulting to files from the classpath: will stage 165 files. Enable logging at DEBUG level to see which files will be staged.
Exception in thread "main" java.lang.IncompatibleClassChangeError: Class org.apache.beam.model.pipeline.v1.RunnerApi$StandardPTransforms$Primitives does not implement the requested interface com.google.protobuf.ProtocolMessageEnum
        at org.apache.beam.runners.core.construction.BeamUrns.getUrn(BeamUrns.java:27)
        at org.apache.beam.runners.core.construction.PTransformTranslation.<clinit>(PTransformTranslation.java:58)
        at org.apache.beam.runners.core.construction.UnconsumedReads$1.visitValue(UnconsumedReads.java:49)
        at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:666)
        at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:649)
        at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:649)
        at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:649)
        at org.apache.beam.sdk.runners.TransformHierarchy$Node.access$600(TransformHierarchy.java:311)
        at org.apache.beam.sdk.runners.TransformHierarchy.visit(TransformHierarchy.java:245)
        at org.apache.beam.sdk.Pipeline.traverseTopologically(Pipeline.java:458)
        at org.apache.beam.runners.core.construction.UnconsumedReads.ensureAllReadsConsumed(UnconsumedReads.java:40)
        at org.apache.beam.runners.dataflow.DataflowRunner.replaceTransforms(DataflowRunner.java:868)
        at org.apache.beam.runners.dataflow.DataflowRunner.run(DataflowRunner.java:660)
        at org.apache.beam.runners.dataflow.DataflowRunner.run(DataflowRunner.java:173)
        at org.apache.beam.sdk.Pipeline.run(Pipeline.java:313)
        at org.apache.beam.sdk.Pipeline.run(Pipeline.java:299)
        at (my code: pipe.run().waitUntilFinish();)

Answer 1

检查Beam等的版本，并在可能的情况下升级依赖项。

我有相同的错误，看到您收到此错误后，我认为这一定是依赖性冲突，因为它以前不存在。

我正在使用scio部署到数据流，只是引用了他们正在使用的内容。 https://github.com/spotify/scio/blob/v0.7.1/build.sbt 我也更新了番石榴和protobuf。

我知道您使用的是Java，但是尝试将Beam更新到2.9.0，也许是番石榴，protobuf ...

使用DataFlowRunner时未实现Beam / DataFlow意外错误ProtocolMessageEnum

1 个答案: