java.lang.IllegalArgumentException: Wrong FS: hdfs://localhost:54310/user/Hadoop/b, expected: file:/

 java.lang.IllegalArgumentException: Wrong FS: hdfs://localhost:54310/user/Hadoop/b, expected: file:///

        at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:410)

        at org.apache.hadoop.fs.RawLocalFileSystem.pathToFile(RawLocalFileSystem.java:56)

        at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:404)

        at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:251)

        at org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSInputChecker.<init>(ChecksumFileSystem.java:126)

        at org.apache.hadoop.fs.ChecksumFileSystem.open(ChecksumFileSystem.java:284)

        at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:456)

        at com.payegis.caesar.test.TestHdfs_002.main(TestHdfs_002.java:33)

 

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在偽分布式下出現：

用Path.getFileSystem(conf)

代替

FileSystem.get(conf)

不知倒是不是偽分布式的原因