We know whomai is called, thanks, I found out painfully the first day
I played with this because in dev, my ide is started not from a
shell. Therefor the path is not inherited to include /usr/bin. Hdfs
client hides the actual fact that ProcessBuilder barfs with a file not
found with a "login exception", "whoami". Not as clear as I would of
liked :-}|
You are referring to creating a directory in hdfs? Because if I am
user chris and the hdfs only has user foo, then I cant create a
directory because I dont have perms, infact I cant even connect. I
believe another emailer holds the answer which was blindly dumb on my
part for not trying, that of adding a user in unix and creating a
group that those users belong to.
Thanks
Chris
On Jun 11, 2008, at 5:36 PM, Allen Wittenauer wrote:
On 6/11/08 5:17 PM, "Chris Collins" <[EMAIL PROTECTED]> wrote:
The finer point to this is that in development you may be logged in
as
user x and have a shared hdfs instance that a number of people are
using. In that mode its not practical to sudo as you have all your
development tools setup for userx. hdfs is setup with a single user,
what is the procedure to add users to that hdfs instance? It has to
support it surely? Its really not obvious, looking in the hdfs docs
that come with the distro nothing springs out. the hadoop command
line tool doesnt have anything that vaguely looks like a way to
create
a user.
User information is sent from the client. The code literally
does a
'whoami' and 'groups' and sends that information to the server.
Shared data should be handled just like you would in UNIX:
- create a directory
- set permissions to be insecure
- go crazy
