我想使用 mapreduce 和 hadoop 1.2.1 生成数据。 除了java和hadoop我什么都不想要。 (我的意思是我不会使用 hadoop-ecosystem 等。)
数据应该像格式...(csv 格式) 数字，X轴，Y轴 1,1,2\n 2,3,2\n 3,12,1\n 4,531,2\n 5,23,4324\n ...
数据大小至少超过 1GB。
数据是从无输入中并行生成的。
我试过运行源代码 来自 [MapReduce 设计模式 182p {生成数据}]。 但是在 Windows Eclipse 控制台和 Linux 中都失败了。
(引用 => http://www.amazon.com/MapReduce-Design-Patterns-Effective-Algorithms/dp/1449327176)
//////////////////////////////copy from my window+eclipse-console//////////////////////////
4월 22, 2014 9:35:58 오전 org.apache.hadoop.util.NativeCodeLoader <clinit>
경고: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Cant help it, hence ignoring IOException setting persmission for path "file:/D:/debug/hadoop/tmp/mapred/staging/BISTel_RWoo1622699850/.staging": Failed to set permissions of path: D:\debug\hadoop\tmp\mapred\staging\BISTel_RWoo1622699850\.staging to 0700
Cant help it, hence ignoring IOException setting persmission for path "file:/D:/debug/hadoop/tmp/mapred/staging/BISTel_RWoo1622699850/.staging/job_local1622699850_0001": Failed to set permissions of path: D:\debug\hadoop\tmp\mapred\staging\BISTel_RWoo1622699850\.staging\job_local1622699850_0001 to 0700
4월 22, 2014 9:35:58 오전 org.apache.hadoop.mapred.JobClient$2 run
정보: Cleaning up the staging area file:/D:/debug/hadoop/tmp/mapred/staging/BISTel_RWoo1622699850/.staging/job_local1622699850_0001
Exception in thread "main" java.lang.RuntimeException: Error while running command to get file permissions : java.io.IOException: Cannot run program "ls": CreateProcess error=2, ÁödµÈ ÆÄÀÏ; ã; ¼ö ¾ø
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1041)
at org.apache.hadoop.util.Shell.runCommand(Shell.java:200)
at org.apache.hadoop.util.Shell.run(Shell.java:182)
at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:375)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:461)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:444)
at org.apache.hadoop.fs.FileUtil.execCommand(FileUtil.java:712)
at org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:448)
at org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.getPermission(RawLocalFileSystem.java:423)
at org.apache.hadoop.filecache.TrackerDistributedCacheManager.checkPermissionOfOther(TrackerDistributedCacheManager.java:364)
at org.apache.hadoop.filecache.TrackerDistributedCacheManager.isPublic(TrackerDistributedCacheManager.java:328)
at org.apache.hadoop.filecache.TrackerDistributedCacheManager.determineCacheVisibilities(TrackerDistributedCacheManager.java:832)
at org.apache.hadoop.filecache.TrackerDistributedCacheManager.determineTimestampsAndCacheVisibilities(TrackerDistributedCacheManager.java:756)
at org.apache.hadoop.mapred.JobClient.copyAndConfigureFiles(JobClient.java:843)
at org.apache.hadoop.mapred.JobClient.copyAndConfigureFiles(JobClient.java:734)
at org.apache.hadoop.mapred.JobClient.access$400(JobClient.java:179)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:951)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:550)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:580)
at mrdp.ch7.RandomDataGenerationDriver.main(RandomDataGenerationDriver.java:237)
Caused by: java.io.IOException: CreateProcess error=2, ÁödµÈ ÆÄÀÏ; ã; ¼ö ¾ø
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:385)
at java.lang.ProcessImpl.start(ProcessImpl.java:136)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1022)
... 24 more
at org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:473)
at org.apache.hadoop.fs.RawLocalFileSystem$RawLocalFileStatus.getPermission(RawLocalFileSystem.java:423)
at org.apache.hadoop.filecache.TrackerDistributedCacheManager.checkPermissionOfOther(TrackerDistributedCacheManager.java:364)
at org.apache.hadoop.filecache.TrackerDistributedCacheManager.isPublic(TrackerDistributedCacheManager.java:328)
at org.apache.hadoop.filecache.TrackerDistributedCacheManager.determineCacheVisibilities(TrackerDistributedCacheManager.java:832)
at org.apache.hadoop.filecache.TrackerDistributedCacheManager.determineTimestampsAndCacheVisibilities(TrackerDistributedCacheManager.java:756)
at org.apache.hadoop.mapred.JobClient.copyAndConfigureFiles(JobClient.java:843)
at org.apache.hadoop.mapred.JobClient.copyAndConfigureFiles(JobClient.java:734)
at org.apache.hadoop.mapred.JobClient.access$400(JobClient.java:179)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:951)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:550)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:580)
at mrdp.ch7.RandomDataGenerationDriver.main(RandomDataGenerationDriver.java:237)
///////////////////////////////////////////////////////////////////////////////////////////
//////////copy from my local-linux-webpages: myserver:50030/jobtracker.jsp//////////
Hadoop map task list for job_201404151557_0017 on fox01
All Tasks
Task Complete Status Start Time Finish Time Errors Counters
task_201404151557_0017_m_000000 0.00%
21-Apr-2014 16:17:00
21-Apr-2014 16:17:21 (20sec)
java.io.FileNotFoundException: /user/rwoo/test/wordList.txt (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at java.io.FileInputStream.<init>(FileInputStream.java:79)
at java.io.FileReader.<init>(FileReader.java:41)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat$RandomStackoverflowRecordReader.initialize(RandomDataGenerationDriver.java:116)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat.createRecordReader(RandomDataGenerationDriver.java:63)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:488)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
java.io.FileNotFoundException: /user/rwoo/test/wordList.txt (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at java.io.FileInputStream.<init>(FileInputStream.java:79)
at java.io.FileReader.<init>(FileReader.java:41)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat$RandomStackoverflowRecordReader.initialize(RandomDataGenerationDriver.java:116)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat.createRecordReader(RandomDataGenerationDriver.java:63)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:488)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
java.io.FileNotFoundException: /user/rwoo/test/wordList.txt (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at java.io.FileInputStream.<init>(FileInputStream.java:79)
at java.io.FileReader.<init>(FileReader.java:41)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat$RandomStackoverflowRecordReader.initialize(RandomDataGenerationDriver.java:116)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat.createRecordReader(RandomDataGenerationDriver.java:63)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:488)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
java.io.FileNotFoundException: /user/rwoo/test/wordList.txt (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at java.io.FileInputStream.<init>(FileInputStream.java:79)
at java.io.FileReader.<init>(FileReader.java:41)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat$RandomStackoverflowRecordReader.initialize(RandomDataGenerationDriver.java:116)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat.createRecordReader(RandomDataGenerationDriver.java:63)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:488)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
0
task_201404151557_0017_m_000001 0.00%
21-Apr-2014 16:17:00
21-Apr-2014 16:17:21 (20sec)
java.io.FileNotFoundException: /user/rwoo/test/wordList.txt (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at java.io.FileInputStream.<init>(FileInputStream.java:79)
at java.io.FileReader.<init>(FileReader.java:41)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat$RandomStackoverflowRecordReader.initialize(RandomDataGenerationDriver.java:116)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat.createRecordReader(RandomDataGenerationDriver.java:63)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:488)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
java.io.FileNotFoundException: /user/rwoo/test/wordList.txt (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at java.io.FileInputStream.<init>(FileInputStream.java:79)
at java.io.FileReader.<init>(FileReader.java:41)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat$RandomStackoverflowRecordReader.initialize(RandomDataGenerationDriver.java:116)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat.createRecordReader(RandomDataGenerationDriver.java:63)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:488)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
java.io.FileNotFoundException: /user/rwoo/test/wordList.txt (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at java.io.FileInputStream.<init>(FileInputStream.java:79)
at java.io.FileReader.<init>(FileReader.java:41)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat$RandomStackoverflowRecordReader.initialize(RandomDataGenerationDriver.java:116)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat.createRecordReader(RandomDataGenerationDriver.java:63)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:488)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
java.io.FileNotFoundException: /user/rwoo/test/wordList.txt (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at java.io.FileInputStream.<init>(FileInputStream.java:79)
at java.io.FileReader.<init>(FileReader.java:41)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat$RandomStackoverflowRecordReader.initialize(RandomDataGenerationDriver.java:116)
at mrdp.ch7.RandomDataGenerationDriver$RandomStackOverflowInputFormat.createRecordReader(RandomDataGenerationDriver.java:63)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:488)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
0
最佳答案
可以使用 cygwin 在 Windows 中设置 Hadoop。 在互联网上可以找到很多关于它的文档。 Here是在 Windows 中为 Hadoop 设置 cygwin 的一个很好的教程。
关于java - 如何使用 MapReduce 生成数据？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23208506/
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