window执行mapreduce报错
Exception in thread "main" java.lang.RuntimeException: java.io.FileNotFoundException: Could not locate Hadoop executable: C:hadoop-3.1.1inwinutils.exe -see https://wiki.apache.org/hadoop/WindowsProblems at org.apache.hadoop.util.Shell.getWinUtilsPath(Shell.java:737) at org.apache.hadoop.util.Shell.getSetPermissionCommand(Shell.java:272) at org.apache.hadoop.util.Shell.getSetPermissionCommand(Shell.java:288) at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:840) at org.apache.hadoop.fs.RawLocalFileSystem.mkOneDirWithMode(RawLocalFileSystem.java:522) at org.apache.hadoop.fs.RawLocalFileSystem.mkdirsWithOptionalPermission(RawLocalFileSystem.java:562) at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:534) at org.apache.hadoop.fs.RawLocalFileSystem.mkdirsWithOptionalPermission(RawLocalFileSystem.java:561) at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:539) at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:332) at org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:162) at org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:113) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:151) at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1570) at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1567) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1567) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1588) at com.venn.demo.WordCount.main(WordCount.java:77) Caused by: java.io.FileNotFoundException: Could not locate Hadoop executable: C:hadoop-3.1.1inwinutils.exe -see https://wiki.apache.org/hadoop/WindowsProblems at org.apache.hadoop.util.Shell.getQualifiedBinInner(Shell.java:620) at org.apache.hadoop.util.Shell.getQualifiedBin(Shell.java:593) at org.apache.hadoop.util.Shell.<clinit>(Shell.java:690) at org.apache.hadoop.util.StringUtils.<clinit>(StringUtils.java:78) at org.apache.hadoop.fs.FileSystem$Cache$Key.<init>(FileSystem.java:3533) at org.apache.hadoop.fs.FileSystem$Cache$Key.<init>(FileSystem.java:3528) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3370) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:477) at com.venn.util.HdfsUtil.isPathExist(HdfsUtil.java:18) at com.venn.util.HdfsUtil.handleOutPutPath(HdfsUtil.java:47) at com.venn.demo.WordCount.main(WordCount.java:28)
注： C:hadoop-3.1.1 是配置的 HADOOP_HOME 路径
下载对应版本的 winutils.exe，放到 路径： C:hadoop-3.1.1in 下。
然后，你会发现又有个新的bug。O(∩_∩)O哈哈~
Exception in thread "main" java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z at org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Native Method) at org.apache.hadoop.io.nativeio.NativeIO$Windows.access(NativeIO.java:640) at org.apache.hadoop.fs.FileUtil.canRead(FileUtil.java:1223) at org.apache.hadoop.util.DiskChecker.checkAccessByFileMethods(DiskChecker.java:160) at org.apache.hadoop.util.DiskChecker.checkDirInternal(DiskChecker.java:100) at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:77) at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.confChanged(LocalDirAllocator.java:315) at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathForWrite(LocalDirAllocator.java:378) at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:152) at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:133) at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:117) at org.apache.hadoop.mapred.LocalDistributedCacheManager.setup(LocalDistributedCacheManager.java:124) at org.apache.hadoop.mapred.LocalJobRunner$Job.<init>(LocalJobRunner.java:172) at org.apache.hadoop.mapred.LocalJobRunner.submitJob(LocalJobRunner.java:788) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:254) 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:1729) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1567) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1588) at com.venn.demo.WordCount.main(WordCount.java:77)
再下载个对应版本的 hadoop.ddl ，放到 C:WindowsSystem32 ，就搞定了
一般来说， winutils.exe 和 hadoop.ddl 同一个大版本应该都可以