> On Oct. 15, 2014, 6:33 p.m., Abraham Elmahrek wrote:
> > Great first crack at this! I have a couple of NITs below and a few design 
> > thoughts:
> > 1. Will this be a Hadoop2 only mechanism? Or is there a follow up Jira for 
> > Hadoop1?
> > 2. The AuthenticationManager seems to be an all-in-one singleton. In 
> > practice, this may work fine, but I'm concerned adding other forms of auth. 
> > might be difficult. Does it make any sense to add some abstractions to take 
> > care of the different authentication mechanisms and make it pluggable?

Thanks for your review and valuable comment.
1. It is just for Hadoop2 currently. I will create JIRA for Hadoop1 later.
2. This is a good suggestion. I will add an abstract class and factory for 
AuthenticationManager.


> On Oct. 15, 2014, 6:33 p.m., Abraham Elmahrek wrote:
> > core/src/main/java/org/apache/sqoop/authentication/AuthenticationManager.java,
> >  lines 59-68
> > <https://reviews.apache.org/r/26678/diff/1/?file=720393#file720393line59>
> >
> >     Does it make sense to delegate this information to some other 
> > abstraction since we might not even use it?

Do you mean move it to KerberosAuthenticationManager.java instead of abstract 
class AuthenticationManager.java?


> On Oct. 15, 2014, 6:33 p.m., Abraham Elmahrek wrote:
> > core/src/main/java/org/apache/sqoop/authentication/AuthenticationManager.java,
> >  line 109
> > <https://reviews.apache.org/r/26678/diff/1/?file=720393#file720393line109>
> >
> >     Not sure if we should authenticate upon initialization of 
> > AuthenticationManager. How about making secureLogin public?

I am not sure whether there is a better place to hold secureLogin. According to 
HDFS/YARN/HIVESERVER2, the secureLogin happens when initiating service 
(NameNode, DataNode, etc.).


- richard


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On Oct. 14, 2014, 7:44 a.m., richard zhou wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/26678/
> -----------------------------------------------------------
> 
> (Updated Oct. 14, 2014, 7:44 a.m.)
> 
> 
> Review request for Sqoop.
> 
> 
> Repository: sqoop-sqoop2
> 
> 
> Description
> -------
> 
> Kerberos support when starting service
> 
> 
> Diffs
> -----
> 
>   core/pom.xml 2b6e436d637eb03493323e5b36e31e433c1f8bbb 
>   
> core/src/main/java/org/apache/sqoop/authentication/AuthenticationConstants.java
>  PRE-CREATION 
>   core/src/main/java/org/apache/sqoop/authentication/AuthenticationError.java 
> PRE-CREATION 
>   
> core/src/main/java/org/apache/sqoop/authentication/AuthenticationManager.java 
> PRE-CREATION 
>   core/src/main/java/org/apache/sqoop/core/SqoopServer.java 
> ac836c7cee010144696ab17645ccd008aed5762d 
>   dist/src/main/server/conf/sqoop.properties 
> bb010166120321899425f84edb8e1ad6512626d2 
>   pom.xml f25a29f6db673e6080dcd5ccd51bab76ab38bff4 
> 
> Diff: https://reviews.apache.org/r/26678/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> richard zhou
> 
>

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