Question

我已经在我的maven pom中添加了这些构建配置，因为我希望Apache Solr Dependencies与Jar捆绑在一起。其他明智的我得到了SolarServerException：ClassNotFound，现在我没有得到那个例外但是下面显示的新例子（After Pom片段）

<build>
        <plugins>
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass></mainClass>
                        </manifest>
                    </archive>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id> <!-- this is used for inheritance merges -->
                        <phase>package</phase> <!-- bind to the packaging phase -->
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

这会创建两个带有依赖项的Jar文件和一个简单的jar。与Deps一起使用，会抛出此错误，

Exception in thread "main" java.lang.UnsupportedOperationException: Not implemented by the S3FileSystem FileSystem implementation
    at org.apache.hadoop.fs.FileSystem.getScheme(FileSystem.java:216)
    at org.apache.hadoop.fs.FileSystem.loadFileSystems(FileSystem.java:2564)
    at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2574)
    at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2591)
    at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:91)
    at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2630)
    at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2612)
    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:370)
    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:169)
    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:354)
    at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296)
    at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.addInputPath(FileInputFormat.java:518)
    at com.myproj.core.NewWordCount.main(NewWordCount.java:59)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
    at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

请帮我解决错误，现在hadoop直接查找s3FileSystem实现。

使用此命令运行它。

hadoop jar com.myproj-0.0.1-SNAPSHOT-jar-with-dependencies.jar com.myproj.core.NewWordCount tempdata / file01 output10 /

P.S。使用简单的Jar（无依赖关系）完全正常工作

Answer 1

您可能需要删除hadoop-core依赖项，因为您还有hadoop-hdfs（即使不是直接）。

没有由S3FileSystem FileSystem实现Hadoop Jar实现

1 个答案: