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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6520) UGI should load tokens from the environment
Date Fri, 29 Jan 2010 06:43:34 GMT
UGI should load tokens from the environment

                 Key: HADOOP-6520
                 URL: https://issues.apache.org/jira/browse/HADOOP-6520
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Owen O'Malley

For MapReduce tasks, we need not only the task itself, but child processes to get the delegation
tokens, therefore we need an environment variable that if set loads a token cache into the
login UGI. The task tracker can set this property so that tasks (and child processes of the
tasks, such as streaming and pipes) have the job's tokens automatically.

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