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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 03:25:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16081584#comment-16081584
] 

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

Thanks [~3opan]. Will commit tomorrow morning so that others have a chance to comment or review.

> 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, HDFS-12052.07.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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