[jira] [Updated] (YARN-7425) Failed to renew delegation token when RM user's TGT is expired

["Shen Yinjie (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-7425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shen Yinjie updated YARN-7425:
------------------------------
    Attachment: rm_log.png

> Failed to renew delegation token  when RM user's TGT is expired
> ---------------------------------------------------------------
>
>                 Key: YARN-7425
>                 URL: https://issues.apache.org/jira/browse/YARN-7425
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>    Affects Versions: 2.8.2
>            Reporter: Shen Yinjie
>            Priority: Critical
>         Attachments: rm_log.png
>
>
> we have a secure hadoop cluster with namenode federation.
> submit job fails after kerberos TGT maxLifeTime expired(default 24h), client log shows" failed to renew token: HDFS_DELEGATION_TOKEN...".
> check rm log, found rm tgt is expired but not triggers relogin(),just retry and fail...
> (some logs see screenshots)
> digging in code:
> when rm tries to renewToken(),
> UserGroupInformation.getLoginUser()="rm",
> but UserGroupInformation.getCurrentUser()="testUser".
> this causes Client.shouldAuthenticateOverKrb() returns false, thus cant trigger reloginFromKeytab() or reloginFromTicketCache().



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