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https://issues.apache.org/jira/browse/YARN-1776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13944659#comment-13944659
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Tsuyoshi OZAWA commented on YARN-1776:
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Sorry for the delay because I had a flight last weekend.
{code}
we do not support fencing yet
{code}
[~kkambatl], ah, I see. Agree with a latest patch. Thank you for the point.
[~zjshen], thanks for your work!
> renewDelegationToken should survive RM failover
> -----------------------------------------------
>
> Key: YARN-1776
> URL: https://issues.apache.org/jira/browse/YARN-1776
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Zhijie Shen
> Assignee: Zhijie Shen
> Fix For: 2.4.0
>
> Attachments: YARN-1776.1.patch, YARN-1776.2.patch, YARN-1776.3.patch,
> YARN-1776.4.patch, YARN-1776.5.patch, YARN-1776.6.patch
>
>
> When a delegation token is renewed, two RMStateStore operations: 1) removing
> the old DT, and 2) storing the new DT will happen. If RM fails in between.
> There would be problem.
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