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From Johannes Zillmann ...@101tec.com>
Subject Re: file permission problem
Date Thu, 13 Mar 2008 01:11:07 GMT
Hi Nicholas,

i'm using the 0.16.0 distribution.

Johannes



s29752-hadoopuser@yahoo.com wrote:
> Hi Johannes,
>
> Which version of hadoop are you using?  There is a known bug in some nightly builds.
>
> Nicholas
>
>
> ----- Original Message ----
> From: Johannes Zillmann <jz@101tec.com>
> To: core-user@hadoop.apache.org
> Sent: Wednesday, March 12, 2008 5:47:27 PM
> Subject: file permission problem
>
> Hi,
>
> i have a question regarding the file permissions.
> I have a kind of workflow where i submit a job from my laptop to a 
> remote hadoop cluster.
> After the job finished i do some file operations on the generated output.
> The "cluster-user" is different to the "laptop-user". As output i 
> specify a directory inside the users home. This output directory, 
> created through the map-reduce job has "cluster-user" permissions, so 
> this does not allow me to move or delete the output folder with my 
> "laptop-user".
>
> So it looks as follow:
> /user/jz/              rwxrwxrwx     jz            supergroup
> /user/jz/output   rwxr-xr-x        hadoop    supergroup
>
> I tried different things to achieve what i want (moving/deleting the 
> output folder):
> - jobConf.setUser("hadoop") on the client side
> - System.setProperty("user.name","hadoop") before jobConf instantiation 
> on the client side
> - add user.name node in the hadoop-site.xml on the client side
> - setPermision(777) on the home folder on the client side (does not work 
> recursiv)
> - setPermision(777) on the output folder on the client side (permission 
> denied)
> - create the output folder before running the job (Output directory 
> already exists exception)
>
> None of the things i tried worked. Is there a way to achieve what i want ?
> Any ideas appreciated!
>
> cheers
> Johannes
>
>
>   


-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
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Halle (Saale), Saxony-Anhalt, Germany
http://www.101tec.com


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