运行wordcount示例时的Apache Beam异常

Question

我想我在文档上遵循了非常多的步骤，但我仍然遇到了这个异常。（唯一的不同是我从Eclipse J2EE运行它，但我不会期望这真的很重要，不是吗？）

代码：（这不是我写的，它来自梁项目示例）。我认为您必须指定一个google云平台项目，并提供访问该项目的正确凭据。然而，在这个示例项目中，我没有找到进行设置的地方。

  public static void main(String[] args) {
// Create a PipelineOptions object. This object lets us set various execution
// options for our pipeline, such as the runner you wish to use. This example
// will run with the DirectRunner by default, based on the class path configured
// in its dependencies.
PipelineOptions options = PipelineOptionsFactory.create();

// Create the Pipeline object with the options we defined above.
Pipeline p = Pipeline.create(options);

// Apply the pipeline's transforms.

// Concept #1: Apply a root transform to the pipeline; in this case, TextIO.Read to read a set
// of input text files. TextIO.Read returns a PCollection where each element is one line from
// the input text (a set of Shakespeare's texts).

// This example reads a public data set consisting of the complete works of Shakespeare.
p.apply(TextIO.Read.from("gs://apache-beam-samples/shakespeare/*"))
.....
)

例外情况：

Exception in thread "main" java.lang.IllegalStateException: Failed to validate gs://apache-beam-samples/shakespeare/*
at org.apache.beam.sdk.io.TextIO$Read$Bound.expand(TextIO.java:309)
at org.apache.beam.sdk.io.TextIO$Read$Bound.expand(TextIO.java:205)
at org.apache.beam.sdk.runners.PipelineRunner.apply(PipelineRunner.java:76)
at org.apache.beam.runners.direct.DirectRunner.apply(DirectRunner.java:296)
at org.apache.beam.sdk.Pipeline.applyInternal(Pipeline.java:388)
at org.apache.beam.sdk.Pipeline.applyTransform(Pipeline.java:302)
at org.apache.beam.sdk.values.PBegin.apply(PBegin.java:47)
at org.apache.beam.sdk.Pipeline.apply(Pipeline.java:152)
at google.dataflow.beam.example.MinimalWordCount.main(MinimalWordCount.java:77)
Caused by: java.io.IOException: Unable to match files in bucket apache-beam-samples, prefix shakespeare/ against pattern shakespeare/[^/]*
at org.apache.beam.sdk.util.GcsUtil.expand(GcsUtil.java:234)
at org.apache.beam.sdk.util.GcsIOChannelFactory.match(GcsIOChannelFactory.java:53)
at org.apache.beam.sdk.io.TextIO$Read$Bound.expand(TextIO.java:304)
... 8 more
Caused by: com.google.api.client.http.HttpResponseException: 400 Bad Request
{


"error" : "invalid_grant"
}
    at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1070)
    at com.google.auth.oauth2.UserCredentials.refreshAccessToken(UserCredentials.java:207)
    at com.google.auth.oauth2.OAuth2Credentials.refresh(OAuth2Credentials.java:149)
    at com.google.auth.oauth2.OAuth2Credentials.getRequestMetadata(OAuth2Credentials.java:135)
    at com.google.auth.http.HttpCredentialsAdapter.initialize(HttpCredentialsAdapter.java:96)
    at com.google.cloud.hadoop.util.ChainingHttpRequestInitializer.initialize(ChainingHttpRequestInitializer.java:52)
    at com.google.api.client.http.HttpRequestFactory.buildRequest(HttpRequestFactory.java:93)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.buildHttpRequest(AbstractGoogleClientRequest.java:300)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:419)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:352)
    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:469)
    at com.google.cloud.hadoop.util.ResilientOperation$AbstractGoogleClientRequestExecutor.call(ResilientOperation.java:166)
    at com.google.cloud.hadoop.util.ResilientOperation.retry(ResilientOperation.java:66)
    at com.google.cloud.hadoop.util.ResilientOperation.retry(ResilientOperation.java:103)
    at org.apache.beam.sdk.util.GcsUtil.expand(GcsUtil.java:227)
    ... 10 more

Answer 1

如果使用Windows，请尝试从命令提示符运行它。转到包含pom.xml文件的文件夹并在其中打开cmd。然后给出带有相应参数的命令。

mvn compile exec:java -Dexec.mainClass=org.apache.beam.examples.WordCount -Dexec.args=" --output=counts" -Pdirect-runner

如果要使用输入文件运行。然后用任何名称创建一个txt文件，并将其放入包含pom的文件夹中。然后按照命令开火。

mvn compile exec:java -Dexec.mainClass=org.apache.beam.examples.WordCount -Dexec.args="--inputFile=YOURFILENAME.txt --output=counts" -Pdirect-runner**

希望这样可以。我正在调查你的问题