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From "Jitendra Nath Pandey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12787) KMS SPNEGO sequence does not work with WEBHDFS
Date Tue, 16 Feb 2016 18:59:18 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15149098#comment-15149098
] 

Jitendra Nath Pandey commented on HADOOP-12787:
-----------------------------------------------

There seems like a redundant code, unless there is a specific reason to wrap the exception.
{code}
+    } catch (IOException ex) {
+      throw new IOException(ex);
{code}


> KMS SPNEGO sequence does not work with WEBHDFS
> ----------------------------------------------
>
>                 Key: HADOOP-12787
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12787
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: kms, security
>    Affects Versions: 2.6.3
>            Reporter: Xiaoyu Yao
>            Assignee: Xiaoyu Yao
>         Attachments: HADOOP-12878.00.patch, HADOOP-12878.01.patch
>
>
> This was a follow up of my [comments|https://issues.apache.org/jira/browse/HADOOP-12559?focusedCommentId=15059045&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15059045]
for HADOOP-10698.
> It blocks a delegation token based user (MR) using WEBHDFS to access KMS server for encrypted
files. This might work in many cases before as JDK 7 has been aggressively do SPENGO implicitly.
However, this is not the case in JDK 8 as we have seen many failures when using WEBHDFS with
KMS and HDFS encryption zone.
>  



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