java - Apache Beam，BigQueryIO.WriteTableRows() 上的 NoSuchMethodError？

Question

我最近将现有管道从数据流 1.x 升级到数据流 2.x，我看到一个对我来说没有意义的错误。我会将相关代码放在下面，然后包括我看到的错误。

// This is essentially the final step in our pipeline, where we write
// one of the side outputs from the pipeline to a BigQuery table

results.get(matchedTag)
  .apply("CountBackfill", Count.<String>perElement())
  .apply("ToReportRow", ParDo.of(new ToReportRow()))
  // at this point, there is now a PCollection<TableRow>
  .apply("WriteReport", BigQueryIO.writeTableRows()
    .to(reportingDataset + ".AttributeBackfill_" + dayStr)
    .withSchema(ReportSchema.get())
    .withWriteDisposition(BigQueryIO.Write.WriteDisposition.WRITE_TRUNCATE)
    .withCreateDisposition(BigQueryIO.Write.CreateDisposition.CREATE_IF_NEEDED));


/*
* Create a TableRow from a key/value pair
*/
public static class ToReportRow extends DoFn<KV<String, Long>, TableRow> {

  private static final long serialVersionUID = 1L;

  @ProcessElement
  public void processElement(ProcessContext c) throws InterruptedException {
    KV<String, Long> row = c.element();

    c.output(new TableRow()
      .set(ReportSchema.ID, row.getKey())
      .set(ReportSchema.COUNT, row.getValue()));
  }
}

这是我看到的错误:

Exception in thread "main" java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkArgument(ZLjava/lang/String;Ljava/lang/Object;Ljava/lang/Object;)V at org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO$Write.expand(BigQueryIO.java:1426) at org.apache.beam.sdk.io.gcp.bigquery.BigQueryIO$Write.expand(BigQueryIO.java:989) at org.apache.beam.sdk.Pipeline.applyInternal(Pipeline.java:525) at org.apache.beam.sdk.Pipeline.applyTransform(Pipeline.java:479) at org.apache.beam.sdk.values.PCollection.apply(PCollection.java:297) at com.prod.merge.DailyUniqueProfiles.buildPipeline(DUP.java:106) at com.prod.merge.MergePipeline.main(MergePipeline.java:91)

行 .apply("WriteReport", BigQueryIO.writeTableRows() 是 DUP.java 中的第 106 行，所以我怀疑这是错误的行。

关于问题可能是什么的任何想法？

Answer 1

这个问题的解决方案最终出现在 maven 依赖项中。添加以下依赖项并使用 mvn 重新编译后，错误消失了。

<dependency>
  <groupId>com.google.guava</groupId>
  <artifactId>guava</artifactId>
  <version>22.0</version>
</dependency>