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From jun aoki <jun.aoki....@gmail.com>
Subject Re: Review Request 43465: Hdfs keytab for hawq service check on secured cluster
Date Fri, 12 Feb 2016 00:27:18 GMT


> On Feb. 11, 2016, 1:15 a.m., Robert Levas wrote:
> > ambari-server/src/main/resources/common-services/HAWQ/2.0.0/kerberos.json, lines
5-8
> > <https://reviews.apache.org/r/43465/diff/1/?file=1240075#file1240075line5>
> >
> >     Is this identity used by both the `HAWKMASTER` and `HAWQSTANDBY` components?
 If not, this block should be moved into the appropriate component since we want to use it
sparingly.  Esentially the `/HDFS/NAMENODE/hdfs` is the _root_ user for HDFS.  So we need
to becareful where it gets put.

@robert Levas, thank you for your comment and sharing the knowledge. hdfs identity is indeed
used by both HAWQMASTER and HAWQSTANDBY, thus I drop this issue.


> On Feb. 11, 2016, 1:15 a.m., Robert Levas wrote:
> > ambari-server/src/main/resources/common-services/HAWQ/2.0.0/kerberos.json, line
31
> > <https://reviews.apache.org/r/43465/diff/1/?file=1240075#file1240075line31>
> >
> >     This is an interesting principal name choice.  Why not use a principal name
that helps to identify is use.  Like, `hawq@${realm}` or better yet something like `${hawq-env/hawk_user}@${realm}`.

I agree Robert. this should've been hawq/_HOST${realm}. Currently this is a HAWQ limitation
(it won't take any other principal name) https://issues.apache.org/jira/browse/HAWQ-406


- jun


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/43465/#review118794
-----------------------------------------------------------


On Feb. 11, 2016, 1 a.m., jun aoki wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/43465/
> -----------------------------------------------------------
> 
> (Updated Feb. 11, 2016, 1 a.m.)
> 
> 
> Review request for Ambari.
> 
> 
> Bugs: AMBARI-15001
>     https://issues.apache.org/jira/browse/AMBARI-15001
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> This is to add hdfs keytab for hawq nodes.
> Currently HAWQ's service check fails due to data clean up after service check is completed
and causes a false negative.
> 
> 
> Diffs
> -----
> 
>   ambari-server/src/main/resources/common-services/HAWQ/2.0.0/kerberos.json cc11c15 
> 
> Diff: https://reviews.apache.org/r/43465/diff/
> 
> 
> Testing
> -------
> 
> Locally teted.
> 
> 
> Thanks,
> 
> jun aoki
> 
>


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