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https://issues.apache.org/jira/browse/HDDS-1990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16910762#comment-16910762
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Anu Engineer commented on HDDS-1990:
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If it is really expired, it really does *not* matter if this information is 
replicated or not. However if the token is revoked, *YES* it has be to be 
replicated via Ratis. Just making sure that semantics is known to someone who 
reads this Jira later.

> Make expiry of Delegation tokens to OM HA model.
> ------------------------------------------------
>
>                 Key: HDDS-1990
>                 URL: https://issues.apache.org/jira/browse/HDDS-1990
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>            Reporter: Bharat Viswanadham
>            Priority: Major
>
> Currently, when tokens expire, there is background thread which runs and 
> check if the token is expired, delete from in-memory map and DB.
> In HA this deletion should go through ratis, to keep all OM's in sync.



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