Hi Matei,

Thanks for your answer.

My question is regarding simple authenticated Spark-on-YARN only, without 
Kerberos. So when I run Spark on YARN and HDFS, Spark will pass through my HDFS 
user and only be able to access files I am entitled to read/write? Will it 
enforce HDFS ACLs and Ranger policies as well?

Best regards, Daniel.

> On 03 Sep 2015, at 21:16, Matei Zaharia <matei.zaha...@gmail.com> wrote:
> 
> If you run on YARN, you can use Kerberos, be authenticated as the right user, 
> etc in the same way as MapReduce jobs.
> 
> Matei
> 
>> On Sep 3, 2015, at 1:37 PM, Daniel Schulz <danielschulz2...@hotmail.com> 
>> wrote:
>> 
>> Hi,
>> 
>> I really enjoy using Spark. An obstacle to sell it to our clients currently 
>> is the missing Kerberos-like security on a Hadoop with simple 
>> authentication. Are there plans, a proposal, or a project to deliver a 
>> Ranger plugin or something similar to Spark. The target is to differentiate 
>> users and their privileges when reading and writing data to HDFS? Is 
>> Kerberos my only option then?
>> 
>> Kind regards, Daniel.
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