运行时提示错误，当文件已存在时，无法创建该文件。

来源：4-8 词频统计之本地方式运行

慕斯1347104

2020-06-13

已经复制bin的全部文件了，但是还是报错。

`[DEBUG] 2020-06-13 23:34:23,894 method:org.apache.htrace.core.Tracer $B u i l d e r . l o a d S a m p l e r s (T r a c e r . j a v a : 106) s a m p l e r . c l a s s e s =; l o a d e d n o s a m p l e r s [T R A C E] 2020 - 06 - 1323 : 34 : 24, 131 m e t h o d : o r g . a p a c h e . h t r a c e . c o r e . T r a c e r I d . < i n i t > (T r a c e r I d . j a v a : 134) P r o c e s s I D (f m t = [T R A C E] 2020 - 06 - 1323 : 34 : 24, 133 m e t h o d : o r g . a p a c h e . h t r a c e . c o r e . T r a c e r P o o l . a d d T r a c e r (T r a c e r P o o l . j a v a : 264) T r a c e r P o o l (G l o b a l) : a d d i n g t r a c e r T r a c e r (F S C l i e n t / 192.168.50.66) [D E B U G] 2020 - 06 - 1323 : 34 : 24, 133 m e t h o d : o r g . a p a c h e . h t r a c e . c o r e . T r a c e r$ Builder.loadSpanReceivers(Tracer.java:128)
span.receiver.classes = ; loaded no span receivers
[TRACE] 2020-06-13 23:34:24,133 method:org.apache.htrace.core.Tracer$Builder.build(Tracer.java:165)
Created Tracer(FSClient/192.168.50.66) for FSClient
[DEBUG] 2020-06-13 23:34:25,263 method:org.apache.hadoop.fs.RawLocalFileSystem.mkOneDirWithMode(RawLocalFileSystem.java:538)
NativeIO.createDirectoryWithMode error, path = \tmp\hadoop\mapred\staging\hadoop45363004.staging\job_local45363004_0001, mode = 755
183: 当文件已存在时，无法创建该文件。

at org.apache.hadoop.io.nativeio.NativeIO$Windows.createDirectoryWithMode0(Native Method)
at org.apache.hadoop.io.nativeio.NativeIO$Windows.createDirectoryWithMode(NativeIO.java:560)
at org.apache.hadoop.fs.RawLocalFileSystem.mkOneDirWithMode(RawLocalFileSystem.java:534)
at org.apache.hadoop.fs.RawLocalFileSystem.mkdirsWithOptionalPermission(RawLocalFileSystem.java:587)
at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:559)
at org.apache.hadoop.fs.ChecksumFileSystem.mkdirs(ChecksumFileSystem.java:705)
at org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:456)
at org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:443)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1118)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1098)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:987)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:975)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:652)
at org.apache.hadoop.mapreduce.split.JobSplitWriter.createFile(JobSplitWriter.java:102)
at org.apache.hadoop.mapreduce.split.JobSplitWriter.createSplitFiles(JobSplitWriter.java:78)
at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:316)
at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:327)
at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:200)
at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1570)
at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1567)
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:1730)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1567)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1588)
at com.xinke.bigdata.hadoop.mr.wc.WordCountApp.main(WordCountApp.java:50)

[DEBUG] 2020-06-13 23:34:25,266 method:org.apache.hadoop.fs.RawLocalFileSystem.mkOneDirWithMode(RawLocalFileSystem.java:538)
NativeIO.createDirectoryWithMode error, path = \tmp\hadoop\mapred\staging\hadoop45363004.staging\job_local45363004_0001, mode = 755
183: 当文件已存在时，无法创建该文件。`

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1回答

Michael_PK

2020-06-13

org.apache.hadoop.io.nativeio.NativeIO$Windows.createDirectoryWithMode0(Native Method)这个错，你应该是win机器把？需要按照QQ群文件的那个图片中的步骤，把那个winutil的东西根据你的版本到github上找到，下载到win机器的指定目录，并把这个目录添加到win的环境变量中。要配置正确才行，不然一直是这个错。如果你闲这个方法太麻烦，可以直接在Linux上部署一个idea进行开发，就不会有这个错。win机器和hadoop的兼容性不是太好

慕斯1347104

Michael_PK

我在pom添加了一个hadoop-mapreduce-client-core依赖好像可以了

2020-06-14

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