[jira] [Created] (HADOOP-13081) add the ability to create multiple UGIs/subjects from one kerberos login

["Sergey Shelukhin (JIRA)" <ji...@apache.org>]

Sergey Shelukhin created HADOOP-13081:
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             Summary: add the ability to create multiple UGIs/subjects from one kerberos login
                 Key: HADOOP-13081
                 URL: https://issues.apache.org/jira/browse/HADOOP-13081
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Sergey Shelukhin


We have a scenario where we log in with kerberos as a certain user for some tasks, but also want to add tokens to the resulting UGI that would be specific to each task. 
I am not sure how this can be accomplished with the existing UGI interface. Perhaps some clone method would be helpful, similar to createProxyUser minus the proxy stuff; or it could just relogin anew from ticket cache. getUGIFromTicketCache seems like the best option in existing code, but there doesn't appear to be a consistent way of handling ticket cache location - the above method, that I only see called in test, is using a config setting that is not used anywhere else, and the env variable for the location is not set on all paths - trying to find the correct ticket cache and setting it in the config for getUGIFromTicketCache seems even hackier than doing the clone via reflection ;)



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