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From Ipraveen <praveen.j...@tarmin.com>
Subject probelm starting datanode from java program
Date Tue, 25 Mar 2008 08:02:23 GMT

hi 
 i am using hadoop api (org.apache.hadoop.dfs) to start a datanode
but when i write DataNode.run(conf) it gives error

08/03/25 13:24:40 WARN dfs.DataNode: java.io.IOException: CreateProcess:
bash -c "exec 'df' '-k' 'E:\tmp\hadoop-praveen\dfs\data' 2>/dev/null"
error=2
        at java.lang.ProcessImpl.create(Native Method)
        at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
        at java.lang.ProcessImpl.start(ProcessImpl.java:30)
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:451)
        at org.apache.hadoop.util.Shell.runCommand(Shell.java:115)
        at org.apache.hadoop.util.Shell.run(Shell.java:100)
        at org.apache.hadoop.fs.DF.getCapacity(DF.java:63)
        at
org.apache.hadoop.dfs.FSDataset$FSVolume.getCapacity(FSDataset.java:307)
        at
org.apache.hadoop.dfs.FSDataset$FSVolumeSet.getCapacity(FSDataset.java:411)
        at org.apache.hadoop.dfs.FSDataset.getCapacity(FSDataset.java:544)
        at org.apache.hadoop.dfs.DataNode.offerService(DataNode.java:588)
        at org.apache.hadoop.dfs.DataNode.run(DataNode.java:2429)
        at java.lang.Thread.run(Thread.java:595)


please give me solutino

regards
praveen jian
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