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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13945) Azure: Add Kerberos and Delegation token support to WASB client.
Date Tue, 03 Jan 2017 19:40:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15795989#comment-15795989
] 

Mingliang Liu commented on HADOOP-13945:
----------------------------------------

Very early comments are about 1) the logging messages: we should log more meaningful messages
especially in case of exceptions; 2) can we add unit tests for this? 3) We can make Constants
class final, along with a private constructor 4) getSASKey() static? 5) I'm expecting some
checkstyle warnings (e.g. longer than 80 chars) 6) for selecting the tokens in {{RemoteSASKeyGeneratorImpl#initialize()}},
can we borrow the code in {{AbstractDelegationTokenSelector}}? I'm not sure about this.

> Azure: Add Kerberos and Delegation token support to WASB client.
> ----------------------------------------------------------------
>
>                 Key: HADOOP-13945
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13945
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs/azure
>    Affects Versions: 2.8.0
>            Reporter: Santhosh G Nayak
>            Assignee: Santhosh G Nayak
>         Attachments: HADOOP-13945.1.patch
>
>
> Current implementation of Azure storage client for Hadoop ({{WASB}}) does not support
Kerberos Authentication and FileSystem authorization, which makes it unusable in secure environments
with multi user setup. 
> To make {{WASB}} client more suitable to run in Secure environments, there are 2 initiatives
under way for providing the authorization (HADOOP-13930) and fine grained access control (HADOOP-13863)
support.
> This JIRA is created to add Kerberos and delegation token support to {{WASB}} client
to fetch Azure Storage SAS keys (from Remote service as discussed in HADOOP-13863), which
provides fine grained timed access to containers and blobs. 
> For delegation token management, the proposal is it use the same REST service which being
used to generate the SAS Keys.



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