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Hadoop Mapreduce 错误输入路径不存在 : hdfs://localhost:54310/user/hduser/input"

转载 作者:可可西里 更新时间:2023-11-01 14:13:43 27 4
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我已经在 Ubuntu Linux 15.04 中安装了 hadoop 2.6,并且运行良好。但是,当我运行示例测试 mapreduce 程序时,出现以下错误:

org.apache.hadoop.mapreduce.lib.input.InvalidInputException: Input path does not exist: hdfs://localhost:54310/user/hduser/input.

请帮助我。以下是错误的完整详细信息。

hduser@krishadoop:/usr/local/hadoop/sbin$ hadoop jar /usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.0.jar wordcount input output
Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar
15/08/24 15:22:37 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
15/08/24 15:22:38 INFO Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id
15/08/24 15:22:38 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId=
15/08/24 15:22:39 INFO mapreduce.JobSubmitter: Cleaning up the staging area file:/app/hadoop/tmp/mapred/staging/hduser1122930879/.staging/job_local1122930879_0001
org.apache.hadoop.mapreduce.lib.input.InvalidInputException: Input path does not exist: hdfs://localhost:54310/user/hduser/input
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.singleThreadedListStatus(FileInputFormat.java:321)
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:264)
at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:385)
at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:597)
at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:614)
at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:492)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1296)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1293)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1293)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1314)
at org.apache.hadoop.examples.WordCount.main(WordCount.java:87)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71)
at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144)
at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

最佳答案

您似乎提到了错误的输入路径。 Hadoop 正在搜索位于 /user/hduser/input 的输入路径。 Hadoop 也遵循 unix like 树结构。如果您只是提到一个目录input,它将被视为/user/{username}/input

hadoop fs -mkdir -p /user/hduser/input

hadoop fs -put <datafile> /user/hduser/input

关于Hadoop Mapreduce 错误输入路径不存在 : hdfs://localhost:54310/user/hduser/input",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32179761/

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