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https://issues.apache.org/jira/browse/HADOOP-14699?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeff Storck updated HADOOP-14699:
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Description:
Multiple principals that are logged in using UGI instances that are
instantiated from a UGI class loaded by the same classloader will encounter
problems when the second principal attempts to relogin and perform an action
using a UGI.doAs(). An impersonation will occur and the operation attempted by
the second principal after relogging in will fail.
I have created a GitHub project that exhibits the impersonation error with
brief instructions on how to set up for the test and run it:
https://github.com/jtstorck/kerberos-examples/tree/master/hadoop/ugi-test
was:
Multiple principals that are logged in using UGI instances that are
instantiated from a UGI class loaded by the same classloader will encounter
problems when the second principal attempts to relogin. An impersonation will
occur and the operation attempted by the second principal after relogging in
will fail.
I have created a GitHub project that exhibits the impersonation error with
brief instructions on how to set up for the test and run it:
https://github.com/jtstorck/kerberos-examples/tree/master/hadoop/ugi-test
> Impersonation errors with UGI after second principal relogin
> ------------------------------------------------------------
>
> Key: HADOOP-14699
> URL: https://issues.apache.org/jira/browse/HADOOP-14699
> Project: Hadoop Common
> Issue Type: Bug
> Components: common
> Affects Versions: 2.6.2, 2.7.3, 2.8.1
> Reporter: Jeff Storck
>
> Multiple principals that are logged in using UGI instances that are
> instantiated from a UGI class loaded by the same classloader will encounter
> problems when the second principal attempts to relogin and perform an action
> using a UGI.doAs(). An impersonation will occur and the operation attempted
> by the second principal after relogging in will fail.
> I have created a GitHub project that exhibits the impersonation error with
> brief instructions on how to set up for the test and run it:
> https://github.com/jtstorck/kerberos-examples/tree/master/hadoop/ugi-test
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