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Posted to mapreduce-user@hadoop.apache.org by "Zheng, Kai" <ka...@intel.com> on 2012/10/18 02:34:12 UTC
(Unknown)
Hi,
When Kerberos authentication is used instead of the default "simple" method, is a Linux user account needed to run a MapReduce job for a principal? Why?
For example, for a Kerberos principal "john@whatever-company.com<ma...@whatever-company.com>", if he needs to run a job, is the following step 1) & 2) a must?
1) Create a Linux user "john" (the first component of the principal name);
2) The user logins as "john" into Linux shell;
3) kinit john@whatever-company.com<ma...@whatever-company.com>;
4) run MapReduce job
Thanks.
Re:
Posted by Harsh J <ha...@cloudera.com>.
For posterity, this was answered in a parallel thread at
http://search-hadoop.com/m/IJvDL4rgOJ
On Thu, Oct 18, 2012 at 6:04 AM, Zheng, Kai <ka...@intel.com> wrote:
> Hi,
>
>
>
> When Kerberos authentication is used instead of the default “simple” method,
> is a Linux user account needed to run a MapReduce job for a principal? Why?
>
> For example, for a Kerberos principal “john@whatever-company.com”, if he
> needs to run a job, is the following step 1) & 2) a must?
>
> 1) Create a Linux user “john” (the first component of the principal
> name);
>
> 2) The user logins as “john” into Linux shell;
>
> 3) kinit john@whatever-company.com;
>
> 4) run MapReduce job
>
>
>
> Thanks.
--
Harsh J
Re:
Posted by Harsh J <ha...@cloudera.com>.
For posterity, this was answered in a parallel thread at
http://search-hadoop.com/m/IJvDL4rgOJ
On Thu, Oct 18, 2012 at 6:04 AM, Zheng, Kai <ka...@intel.com> wrote:
> Hi,
>
>
>
> When Kerberos authentication is used instead of the default “simple” method,
> is a Linux user account needed to run a MapReduce job for a principal? Why?
>
> For example, for a Kerberos principal “john@whatever-company.com”, if he
> needs to run a job, is the following step 1) & 2) a must?
>
> 1) Create a Linux user “john” (the first component of the principal
> name);
>
> 2) The user logins as “john” into Linux shell;
>
> 3) kinit john@whatever-company.com;
>
> 4) run MapReduce job
>
>
>
> Thanks.
--
Harsh J
Re:
Posted by Harsh J <ha...@cloudera.com>.
For posterity, this was answered in a parallel thread at
http://search-hadoop.com/m/IJvDL4rgOJ
On Thu, Oct 18, 2012 at 6:04 AM, Zheng, Kai <ka...@intel.com> wrote:
> Hi,
>
>
>
> When Kerberos authentication is used instead of the default “simple” method,
> is a Linux user account needed to run a MapReduce job for a principal? Why?
>
> For example, for a Kerberos principal “john@whatever-company.com”, if he
> needs to run a job, is the following step 1) & 2) a must?
>
> 1) Create a Linux user “john” (the first component of the principal
> name);
>
> 2) The user logins as “john” into Linux shell;
>
> 3) kinit john@whatever-company.com;
>
> 4) run MapReduce job
>
>
>
> Thanks.
--
Harsh J
Re:
Posted by Harsh J <ha...@cloudera.com>.
For posterity, this was answered in a parallel thread at
http://search-hadoop.com/m/IJvDL4rgOJ
On Thu, Oct 18, 2012 at 6:04 AM, Zheng, Kai <ka...@intel.com> wrote:
> Hi,
>
>
>
> When Kerberos authentication is used instead of the default “simple” method,
> is a Linux user account needed to run a MapReduce job for a principal? Why?
>
> For example, for a Kerberos principal “john@whatever-company.com”, if he
> needs to run a job, is the following step 1) & 2) a must?
>
> 1) Create a Linux user “john” (the first component of the principal
> name);
>
> 2) The user logins as “john” into Linux shell;
>
> 3) kinit john@whatever-company.com;
>
> 4) run MapReduce job
>
>
>
> Thanks.
--
Harsh J