本文介绍了从胖 jar 启动 Dataflow 作业时暂存包时出错的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我创建了一个 Maven 项目来执行管道.如果我运行主类，管道将完美运行.如果我创建一个胖 jar 并执行它，我会遇到两个不同的错误，一个是在 Windows 下执行，另一个是在 Linux 下执行.
I create a maven project to execute a pipeline. If I run the main class, the pipeline works perfectly. If I create a fat jar and I execute it, I have two different errors, one if I execute it under Windows and another one if I execute it under Linux.
在 Windows 下:
Under Windows:
Exception in thread "main" java.lang.RuntimeException: Error while staging packages
at org.apache.beam.runners.dataflow.util.PackageUtil.stageClasspathElements(PackageUtil.java:364)
at org.apache.beam.runners.dataflow.util.PackageUtil.stageClasspathElements(PackageUtil.java:261)
at org.apache.beam.runners.dataflow.util.GcsStager.stageFiles(GcsStager.java:66)
at org.apache.beam.runners.dataflow.DataflowRunner.run(DataflowRunner.java:517)
at org.apache.beam.runners.dataflow.DataflowRunner.run(DataflowRunner.java:170)
at org.apache.beam.sdk.Pipeline.run(Pipeline.java:303)
at org.apache.beam.sdk.Pipeline.run(Pipeline.java:289)
at ....
Caused by: java.nio.file.InvalidPathException: Illegal char <:> at index 2: gs://MY_BUCKET/staging
at sun.nio.fs.WindowsPathParser.normalize(Unknown Source)
at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
at sun.nio.fs.WindowsPath.parse(Unknown Source)
at sun.nio.fs.WindowsFileSystem.getPath(Unknown Source)
at java.nio.file.Paths.get(Unknown Source)
at org.apache.beam.sdk.io.LocalFileSystem.matchNewResource(LocalFileSystem.java:196)
at org.apache.beam.sdk.io.LocalFileSystem.matchNewResource(LocalFileSystem.java:78)
at org.apache.beam.sdk.io.FileSystems.matchNewResource(FileSystems.java:563)
at org.apache.beam.runners.dataflow.util.PackageUtil$PackageAttributes.forFileToStage(PackageUtil.java:452)
at org.apache.beam.runners.dataflow.util.PackageUtil$1.call(PackageUtil.java:147)
at org.apache.beam.runners.dataflow.util.PackageUtil$1.call(PackageUtil.java:138)
at org.apache.beam.runners.dataflow.repackaged.com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:111)
at org.apache.beam.runners.dataflow.repackaged.com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:58)
at org.apache.beam.runners.dataflow.repackaged.com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:75)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
在 Linux 下:
Exception in thread "main" java.lang.RuntimeException: Failed to construct instance from factory method DataflowRunner#fromOptions(interface org.apache.beam.sdk.options.PipelineOptions)
at org.apache.beam.sdk.util.InstanceBuilder.buildFromMethod(InstanceBuilder.java:233)
at org.apache.beam.sdk.util.InstanceBuilder.build(InstanceBuilder.java:162)
at org.apache.beam.sdk.PipelineRunner.fromOptions(PipelineRunner.java:52)
at org.apache.beam.sdk.Pipeline.create(Pipeline.java:142)
at ....
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.beam.sdk.util.InstanceBuilder.buildFromMethod(InstanceBuilder.java:222)
... 8 more
Caused by: java.lang.IllegalArgumentException: Expected a valid 'gs://' path but was given '/home/USER/gs:/MY_BUCKET/temp/staging/'
at org.apache.beam.sdk.extensions.gcp.storage.GcsPathValidator.getGcsPath(GcsPathValidator.java:101)
at org.apache.beam.sdk.extensions.gcp.storage.GcsPathValidator.verifyPath(GcsPathValidator.java:75)
at org.apache.beam.sdk.extensions.gcp.storage.GcsPathValidator.validateOutputFilePrefixSupported(GcsPathValidator.java:60)
at org.apache.beam.runners.dataflow.DataflowRunner.fromOptions(DataflowRunner.java:237)
... 13 more
Caused by: java.lang.IllegalArgumentException: Invalid GCS URI: /home/USER/gs:/MY_BUCKET/temp/staging/
at org.apache.beam.sdks.java.extensions.google.cloud.platform.core.repackaged.com.google.common.base.Preconditions.checkArgument(Preconditions.java:191)
at org.apache.beam.sdk.util.gcsfs.GcsPath.fromUri(GcsPath.java:116)
at org.apache.beam.sdk.extensions.gcp.storage.GcsPathValidator.getGcsPath(GcsPathValidator.java:99)
... 16 more
这是我的 pom.xml:
This is my pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>xxxxxxxxxxx</groupId>
<artifactId>xxxxxxxxx</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<!-- https://mvnrepository.com/artifact/com.google.cloud.dataflow/google-cloud-dataflow-java-sdk-all -->
<dependency>
<groupId>com.google.cloud.dataflow</groupId>
<artifactId>google-cloud-dataflow-java-sdk-all</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.3</version>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-1.0-sdk</artifactId>
<version>1.9.60</version>
</dependency>
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>google-cloud-datastore</artifactId>
<version>1.15.0</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.0</version>
</dependency>
</dependencies>
<build>
<finalName>myFatJar</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<transformers>
<transformer implementation= "org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>com.myclass.MyClass</mainClass>
</transformer>
</transformers>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
这些是我的管道选项:
...
DataflowPipelineOptions options = PipelineOptionsFactory.fromArgs(args).withValidation().create().as(DataflowPipelineOptions.class);
//options.setGcpTempLocation("gs://MY_BUCKET/temp");
options.setTempLocation("gs://MY_BUCKET/temp");
options.setStagingLocation("gs://MY_BUCKET/staging");
options.setProject("xxxxxxxx");
options.setJobName("asd");
options.setRunner(DataflowRunner.class);
Pipeline.create(options);
...
我尝试使用 GcpTempLocation 更改 tempLocation，但是如果我这样做了，则会出现此错误:
I tried to change tempLocation with GcpTempLocation but, if I do, I have this error:
java.lang.IllegalArgumentException: BigQueryIO.Write needs a GCS temp location to store temp files.
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:122)
at org.apache.beam.sdk.io.gcp.bigquery.BatchLoads.validate(BatchLoads.java:191)
at org.apache.beam.sdk.Pipeline$ValidateVisitor.enterCompositeTransform(Pipeline.java:621)
at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:651)
at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:655)
at org.apache.beam.sdk.runners.TransformHierarchy$Node.visit(TransformHierarchy.java:655)
at org.apache.beam.sdk.runners.TransformHierarchy$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:446)
at org.apache.beam.sdk.Pipeline.validate(Pipeline.java:563)
at org.apache.beam.sdk.Pipeline.run(Pipeline.java:302)
at org.apache.beam.sdk.Pipeline.run(Pipeline.java:289)
at ...
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:282)
at java.lang.Thread.run(Thread.java:748)
我该怎么办?
推荐答案
这个评论解决了我的问题:
this comment resolves my question:
您是否尝试将 DataflowRunner 的 Apache Beam 工件显式添加到 pom.xml?– 安德鲁
这篇关于从胖 jar 启动 Dataflow 作业时暂存包时出错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！