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https://issues.apache.org/jira/browse/HADOOP-17159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17166070#comment-17166070
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Sandeep Guggilam edited comment on HADOOP-17159 at 7/28/20, 2:16 AM:
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[~abhishek.chouhan] [~liuml07] [~apurtell]
was (Author: sandeep.guggilam):
[~abhishek.chouhan] [~liuml07]
> 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
> Reporter: Sandeep Guggilam
> Priority: Major
>
> 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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