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From "Zoran Dimitrijevic (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-12052) Set "SWEBHDFS delegation" as DT kind if ssl is enabled in HttpFS
Date Wed, 28 Jun 2017 00:25:00 GMT
Zoran Dimitrijevic created HDFS-12052:
-----------------------------------------

             Summary: Set "SWEBHDFS delegation" as DT kind if 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: 3.0.0-alpha3, 2.7.3
            Reporter: Zoran Dimitrijevic


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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