[
https://issues.apache.org/jira/browse/HADOOP-13066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15276966#comment-15276966
]
Chris Nauroth commented on HADOOP-13066:
----------------------------------------
bq. Interestingly, it sets keytabFile and keytabPrincipal statics, but not
loginUser.
The prior values get restored at the end of the method, so there are no
long-term side effects. Unfortunately, the use of global {{static}} state in
UGI does make the code hard to follow.
> UserGroupInformation.loginWithKerberos/getLoginUser is not thread-safe
> ----------------------------------------------------------------------
>
> Key: HADOOP-13066
> URL: https://issues.apache.org/jira/browse/HADOOP-13066
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Reporter: Sergey Shelukhin
>
> When calling loginFromKerberos, a static variable is set up with the result.
> If someone logs in as a different user from a different thread, the call to
> getLoginUser will not return the correct UGI.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
