我正在尝试使用Amazons EMR服务上托管的集群。我尝试使用WordCount.jar文件运行WordCount示例，并使用随机输出文件夹input1.txt。我的输入语法是WordCount argv[1]argv[2]。input1.txt的路径是argv[1]，argv[2]是输出的路径。我知道，如果您多次尝试使用同一个输出目录，hadoop会变得很疯狂。只是为了绝对确定你们，我有线路->
FileInputFormat.addInputPath(job, new Path(args[1]));
FileOutputFormat.setOutputPath(job, new Path(args[2]));
然而，无论我放在什么输出目录中，这都是我的结果，
Exception in thread "main" org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory https://s3.us-east-2.amazonaws.com/mydirectory/gabagooba already exists
at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:146)
at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:268)
at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:141)
at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1341)
at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1338)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1844)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1338)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1359)
at WordCountDemo.WordCount.main(WordCount.java:62)
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.hadoop.util.RunJar.run(RunJar.java:239)
at org.apache.hadoop.util.RunJar.main(RunJar.java:153)
我的输出目录本应存储在S3存储中，但当我去那里时，没有输出。任何帮助都会让我摆脱这种困境。
您能将输出位置指定为s3吗而不是https。
示例：s3://yourbucket/output
参考编号：https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-plan-output.html