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https://issues.apache.org/jira/browse/YARN-11391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated YARN-11391:
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Labels: pull-request-available (was: )
> Support using DNS to resolve yarn services to IP addresses
> ----------------------------------------------------------
>
> Key: YARN-11391
> URL: https://issues.apache.org/jira/browse/YARN-11391
> Project: Hadoop YARN
> Issue Type: New Feature
> Reporter: Shuyi Zhang
> Priority: Major
> Labels: pull-request-available
>
> We have been using A-record (hostname) for discovering YARN control
> planes(RM, JHS) from both the server and client sides. The components
> discover each other using hostnames (DNS A-records) which are preconfigured
> in YARN configurations (mapred-site.xml and yarn-site.xml). However, the
> hard-coded address mapping is prohibitive to perform appropriate failure
> recovery and node replacement. Any host replacement, adding, or removing
> requires client integration, which is a quite painful process.
> It is essential to find a solution where the discovery configuration of
> different components in the cluster stays intact and is able to resolve with
> the latest hostname/records.
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