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From "John Zhuge (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12052) Set SWEBHDFS delegation token kind when ssl is enabled in HttpFS
Date Tue, 11 Jul 2017 00:09:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16081394#comment-16081394
] 

John Zhuge commented on HDFS-12052:
-----------------------------------

Yetus only reports checkstyle issues on the modified lines.

I am also very eager to make everything I touch as pretty as possible. Unfortunately too many
gratuitous changes are not manageable when you have to maintain dozens of branches and do
backports constantly, often in different commit orders. Clean backports are very much appreciated.
Thank you [~3opan] for removing the style fixes.

That said, style fixes on or very close to the modified lines are ok. Please do file refactor
JIRAs where we can anticipate conflicts and resolve them just once.

> Set SWEBHDFS delegation token kind when ssl is enabled in HttpFS
> ----------------------------------------------------------------
>
>                 Key: HDFS-12052
>                 URL: https://issues.apache.org/jira/browse/HDFS-12052
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: httpfs, webhdfs
>    Affects Versions: 2.7.3, 3.0.0-alpha3
>            Reporter: Zoran Dimitrijevic
>            Assignee: Zoran Dimitrijevic
>         Attachments: HDFS-12052.00.patch, HDFS-12052.01.patch, HDFS-12052.02.patch, HDFS-12052.03.patch,
HDFS-12052.04.patch, HDFS-12052.05.patch, HDFS-12052.06.patch
>
>
> When httpfs runs with httpfs.ssl.enabled it should return SWEBHDFS delegation tokens.

> Currently, httpfs returns WEBHDFS delegation "kind" for tokens regardless of whether
ssl is enabled or not. If clients directly connect to renew tokens (for example, hdfs dfs)
all works because httpfs doesn't check whether token kind is for swebhdfs or webhdfs. However,
this breaks when yarn rm needs to renew the token for the job (for example, when running hadoop
distcp). Since DT kind is WEBHDFS, rm tries to establish non-ssl connection to httpfs and
fails.
> I've tested a simple patch which I'll upload to this jira, and it fixes this issue (hadoop
distcp works).



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