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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