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https://issues.apache.org/jira/browse/YARN-10210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17067760#comment-17067760
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Íñigo Goiri commented on YARN-10210:
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Thank you [~roliu] for the new failover provider.
Merged the PR to trunk.
> Add a RMFailoverProxyProvider that does DNS resolution on failover
> ------------------------------------------------------------------
>
> Key: YARN-10210
> URL: https://issues.apache.org/jira/browse/YARN-10210
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 3.1.2
> Reporter: Roger Liu
> Assignee: Roger Liu
> Priority: Major
> Fix For: 3.3.0
>
>
> In Kubernetes, the a node may go down and then come back later with a
> different IP address. YARN clients which are already running will be unable
> to rediscover the node after it comes back up due to caching the original IP
> address. This is problematic for cases such as Spark HA on Kubernetes, as the
> node containing the resource manager may go down and come back up, meaning
> existing node managers must then also be restarted.
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