[jira] [Created] (OOZIE-3035) HDFS HA and log aggregation: getting HDFS delegation token from YARN renewer within JavaActionExecutor

["Andras Piros (JIRA)" <ji...@apache.org>]

Andras Piros created OOZIE-3035:
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             Summary: HDFS HA and log aggregation: getting HDFS delegation token from YARN renewer within JavaActionExecutor
                 Key: OOZIE-3035
                 URL: https://issues.apache.org/jira/browse/OOZIE-3035
             Project: Oozie
          Issue Type: Bug
    Affects Versions: 4.3.0
         Environment: * [*Hadoop 3 alpha 4*|https://github.com/apache/hadoop/tree/branch-3.0.0-alpha4]
* [*HDFS HA*|https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithNFS.html]
* log aggregation turned on
            Reporter: Andras Piros
            Assignee: Andras Piros
             Fix For: 5.0.0


In a secure environment, when both HDFS HA and log aggregation are turned on, {{JavaActionExecutor}} is not able to call {{YarnClient#submitApplication}} since {{HDFS_DELEGATION_TOKEN}} is missing.

In those cases we need to get {{HDFS_DELEGATION_TOKEN}} from YARN:
* get YARN renewer via {{Master#getMasterPrincipal}}
* get {{HDFS_DELEGATION_TOKEN}} via {{DFSClient#getDelegationToken}}
* add {{HDFS_DELEGATION_TOKEN}} to {{Credentials}}



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