设置 templateLocation 参数时数据流作业运行失败

问题描述

当我传递参数 staging、temp & 时，Dataflow 作业失败并出现以下异常输出 GCS 存储桶位置.

Dataflow job is failing with below exception when I pass parameters staging,temp & output GCS bucket locations.

Java 代码:

final String[] used = Arrays.copyOf(args, args.length + 1);
used[used.length - 1] = "--project=OVERWRITTEN"; final T options =
PipelineOptionsFactory.fromArgs(used).withValidation().as(clazz);
options.setProject(PROJECT_ID);
options.setStagingLocation("gs://abc/staging/");
options.setTempLocation("gs://abc/temp");
options.setRunner(DataflowRunner.class);
options.setGcpTempLocation("gs://abc");

错误:

INFO: Staging pipeline description to gs://ups-heat-dev- tmp/mniazstaging_ingest_validation/staging/
May 10, 2018 11:56:35 AM org.apache.beam.runners.dataflow.util.PackageUtil tryStagePackage
INFO: Uploading <42088 bytes, hash E7urYrjAOjwy6_5H-UoUxA> to gs://ups-heat-dev-tmp/mniazstaging_ingest_validation/staging/pipeline-E7urYrjAOjwy6_5H-UoUxA.pb
Dataflow SDK version: 2.4.0
May 10, 2018 11:56:38 AM org.apache.beam.runners.dataflow.DataflowRunner run
INFO: Printed job specification to gs://ups-heat-dev-tmp/mniazstaging_ingest_validation/templates/DataValidationPipeline
May 10, 2018 11:56:40 AM org.apache.beam.runners.dataflow.DataflowRunner run
INFO: Template successfully created.
Exception in thread "main" java.lang.NullPointerException
    at org.apache.beam.runners.dataflow.DataflowPipelineJob.getJobWithRetries(DataflowPipelineJob.java:501)
    at org.apache.beam.runners.dataflow.DataflowPipelineJob.getStateWithRetries(DataflowPipelineJob.java:477)
    at org.apache.beam.runners.dataflow.DataflowPipelineJob.waitUntilFinish(DataflowPipelineJob.java:312)
    at org.apache.beam.runners.dataflow.DataflowPipelineJob.waitUntilFinish(DataflowPipelineJob.java:248)
    at org.apache.beam.runners.dataflow.DataflowPipelineJob.waitUntilFinish(DataflowPipelineJob.java:202)
    at org.apache.beam.runners.dataflow.DataflowPipelineJob.waitUntilFinish(DataflowPipelineJob.java:195)
    at com.example.DataValidationPipeline.main(DataValidationPipeline.java:66)

推荐答案

我也遇到了同样的问题，错误是在 p.run().waitForFinish(); 处抛出.然后我尝试了以下代码

I was also facing the same issue, the error was throwing at p.run().waitForFinish();. Then I have tried following code

   PipelineResult result = p.run();
   System.out.println(result.getState().hasReplacementJob());
   result.waitUntilFinish();

这是抛出以下异常

    java.lang.UnsupportedOperationException: The result of template creation should not be used.
    at org.apache.beam.runners.dataflow.util.DataflowTemplateJob.getState (DataflowTemplateJob.java:67)

然后为了解决这个问题，我使用了以下代码

Then to fix the issue I used the following code

    PipelineResult result = pipeline.run();
    try {
        result.getState();
        result.waitUntilFinish();
    } catch (UnsupportedOperationException e) {
       // do nothing
    } catch (Exception e) {
        e.printStackTrace();
    }

这篇关于设置 templateLocation 参数时数据流作业运行失败的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！