Re: copyToLocal (from Amazon AWS)

2011-05-31 Thread Mapred Learn
try using complete path for where you hadoop binary is present. For eg
/usr/bin/hadoop instead of hadoop...



On Tue, May 31, 2011 at 3:56 PM, neeral beladia wrote:

> Hi,
>
> I am not sure if this question has been asked. Its more of a  hadoop fs
> question. I am trying to execute the following hadoop fs  command :
>
> hadoop fs -copyToLocal s3n://:@ name>/file.txt /home/hadoop/workspace/file.txt
>
> When I execute this command  directly from the Terminal shell, it works
> perfectly fine, however the  above command from code doesn't execute. In
> fact,
> it says :
>
> Exception in thread "main" copyToLocal: null
>
> Please  note I am using Runtime.getRunTime().exec(cmdStr), where cmdStr is
> the
> above hadoop command. Also, please note that hadoop fs -cp or hadoop fs
>  -rmr
> commands work fine with source and destination being both Amazon  AWS
> locations.
> In the above command (hadoop fs -copyToLocal)  the destination is local
> location
> to my machine(Ubuntu installed).
>
> Your help would be greatly appreciated.
>
> Thanks,
>
> Neeral


Re: copyToLocal (from Amazon AWS)

2011-05-31 Thread Mapred Learn
Oops.. reading again, the command is working.
what is the exact string that you have in cmdStr ?




On Tue, May 31, 2011 at 4:51 PM, Mapred Learn wrote:

> try using complete path for where you hadoop binary is present. For eg
> /usr/bin/hadoop instead of hadoop...
>
>
>
> On Tue, May 31, 2011 at 3:56 PM, neeral beladia 
> wrote:
>
>> Hi,
>>
>> I am not sure if this question has been asked. Its more of a  hadoop fs
>> question. I am trying to execute the following hadoop fs  command :
>>
>> hadoop fs -copyToLocal s3n://:@> name>/file.txt /home/hadoop/workspace/file.txt
>>
>> When I execute this command  directly from the Terminal shell, it works
>> perfectly fine, however the  above command from code doesn't execute. In
>> fact,
>> it says :
>>
>> Exception in thread "main" copyToLocal: null
>>
>> Please  note I am using Runtime.getRunTime().exec(cmdStr), where cmdStr is
>> the
>> above hadoop command. Also, please note that hadoop fs -cp or hadoop fs
>>  -rmr
>> commands work fine with source and destination being both Amazon  AWS
>> locations.
>> In the above command (hadoop fs -copyToLocal)  the destination is local
>> location
>> to my machine(Ubuntu installed).
>>
>> Your help would be greatly appreciated.
>>
>> Thanks,
>>
>> Neeral
>
>
>