我想運行一個hadoop流python作業。Hadoop流 - 無法找到文件錯誤
bin/hadoop jar contrib/streaming/hadoop-0.20.1-streaming.jar
-D stream.non.zero.exit.is.failure=true
-input /ixml
-output /oxml
-mapper scripts/mapper.py
-file scripts/mapper.py
-inputreader "StreamXmlRecordReader,begin=channel,end=/channel"
-jobconf mapred.reduce.tasks=0
我確信mapper.py具有所有權限。它的錯誤了說
Caused by: java.io.IOException: Cannot run program "mapper.py":
error=2, No such file or directory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)
at org.apache.hadoop.streaming.PipeMapRed.configure(PipeMapRed.java:214)
... 19 more
Caused by: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.forkAndExec(Native Method)
at java.lang.UNIXProcess.(UNIXProcess.java:53)
at java.lang.ProcessImpl.start(ProcessImpl.java:91)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:453)
我試圖複製mapper.py到HDFS並給出相同的HDFS://localhost/mapper.py鏈接,不工作過!有關如何解決這個錯誤的任何想法?
你解決這個問題?我在Windows Server 2012上面臨同樣的問題。 – 2016-01-14 10:35:33