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Posted to common-issues@hadoop.apache.org by "Mingliang Liu (Jira)" <ji...@apache.org> on 2020/08/25 07:23:00 UTC
[jira] [Commented] (HADOOP-17159) Ability for forceful relogin in
UserGroupInformation class
[ https://issues.apache.org/jira/browse/HADOOP-17159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17183803#comment-17183803 ]
Mingliang Liu commented on HADOOP-17159:
----------------------------------------
[~sandeep.guggilam] Could you provide a new PR (reusing this JIRA) for branch-2.10? I saw major conflicts there. Thank you.
> Ability for forceful relogin in UserGroupInformation class
> ----------------------------------------------------------
>
> Key: HADOOP-17159
> URL: https://issues.apache.org/jira/browse/HADOOP-17159
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.10.0, 3.3.0, 3.2.1, 3.1.3
> Reporter: Sandeep Guggilam
> Assignee: Sandeep Guggilam
> Priority: Major
> Fix For: 3.2.2, 3.3.1, 3.4.0, 3.1.5
>
>
> Currently we have a relogin() method in UGI which attempts to login if there is no login attempted in the last 10 minutes or configured amount of time
> We should also have provision for doing a forceful relogin irrespective of the time window that the client can choose to use it if needed . Consider the below scenario:
> # SASL Server is reimaged and new keytabs are fetched with refreshing the password
> # SASL client connection to the server would fail when it tries with the cached service ticket
> # We should try to logout to clear the service tickets in cache and then try to login back in such scenarios. But since the current relogin() doesn't guarantee a login, it could cause an issue
> # A forceful relogin in this case would help after logout
>
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