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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-13155) Implement TokenRenewer in KMS and HttpFS
Date Mon, 16 May 2016 17:04:12 GMT
Xiao Chen created HADOOP-13155:

             Summary: Implement TokenRenewer in KMS and HttpFS
                 Key: HADOOP-13155
                 URL: https://issues.apache.org/jira/browse/HADOOP-13155
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Xiao Chen
            Assignee: Xiao Chen

DelegationToken is done in Yarn by {{DelegationTokenRenewer}}, where it calls {{Token#renew}}
and uses ServiceLoader to get the renewer class ([code|https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/Token.java#L382])

We seem to miss the token renewer class in KMS/HttpFSFileSystem, and hence Yarn defaults to
{{TrivialRenewer}} for DT of these kinds, resulting in the token not renewed.

As a side note, {{HttpFSFileSystem}} does have a {{renewDelegationToken}} API, but I don't
see it invoked in hadoop code base. KMS does not have any renew hook.

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