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Hadoop, mail # user - Hadoop + cygwin


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Re: Hadoop + cygwin
Joey Echeverria 2011-11-03, 11:19
What are the permissions on \tmp\hadoop-cyg_server\mapred\local\ttprivate?

Which user owns that directory?

Which user are you starting you TaskTracker as?

-Joey

On Wed, Nov 2, 2011 at 9:29 PM, Masoud <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Im running hadop 0.20.204 under cygwin 1.7 on Win7, java 1.6.22
> i got this error:
>
> 2011-11-01 14:26:54,479 ERROR org.apache.hadoop.mapred.TaskTracker:
> *Can not start task tracker because java.io.IOException: Failed to set
> permissions of path: \tmp\hadoop-cyg_server\mapred\local\ttprivate
> to 0700 *
>  I tried different ways, i even setted {hadoop.tmp.dir} to the cygwin home
> dir too, got same result,
> the problem is that JAVA using windows path and file permission to create
> HDFS, and i think
> under cygwin by simulating Linux behaviour Hadoop can not change the windows
> permission to
> Linux permission for mentioned folder in error message,
> Maybe its a bug and should fixed in source code.,
>
> Any idea please.....
>
> Thanks,
> Masoud.
>
> On 11/01/2011 08:12 PM, Rita wrote:
>>
>> Why ?
>>
>> The beauty of hadoop is its OS agnostic. What is your native operating
>> system? I am sure you have a version of JDK and JRE running there.
>>
>>
>> On Tue, Nov 1, 2011 at 4:53 AM, Masoud<[EMAIL PROTECTED]>  wrote:
>>
>>> Hi
>>>
>>> Anybody ran hadoop on cygwin for development purpose???
>>> Did you have any problem in running tasktracker?
>>>
>>> Thanks
>>>
>>
>>
>
>

--
Joseph Echeverria
Cloudera, Inc.
443.305.9434