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Posted to common-dev@hadoop.apache.org by Ipraveen <pr...@tarmin.com> on 2008/03/25 09:02:23 UTC

probelm starting datanode from java program

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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Re: probelm starting datanode from java program

Posted by Ipraveen <pr...@tarmin.com>.
i am using windows XP 

Amar Kamat wrote:
> 
> What is the environment in which you are trying to run.
> Amar
> On Tue, 25 Mar 2008, Ipraveen wrote:
> 
>>
>> 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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Re: probelm starting datanode from java program

Posted by Amar Kamat <am...@yahoo-inc.com>.
What is the environment in which you are trying to run.
Amar
On Tue, 25 Mar 2008, Ipraveen wrote:

>
> 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
>